S V Hi-Tech Bearing (India) Private Limited

Axial clamp seals are high-performance sealing components designed especially for large and very large shaft diameters. These seals are made from profiled strips of non-reinforced nitrile rubber clamped firmly in place by stainless steel bands, ensuring robust sealing performance. Offering axial sealing against rotating counterfaces, axial clamp seals provide excellent protection as primary or secondary seals, particularly where primary seals face excessive contaminants like solid particles or fluids. Benefits include easy installation, effective exclusion of dirt, dust, and splash water, reduced maintenance, and enhanced equipment reliability in demanding environments.

Industrial Applications

• Mechanical Engineering: Large rotating equipment and bearing housings
• Electric Motors: Protection of motor shafts and bearings
• Drive Technology: Heavy-duty drives, gearboxes
• Pumps and Compressors: Shaft sealing in large diameter shafts
• Agricultural Machinery: Hydraulic cylinders, shafts in large machines
• Washing Machines & Home Appliances: Large diameter shaft sealing
• Heavy-Duty Industrial Equipment: Mining, construction, and material handling machines

Brands

• SKF
• Timken
• Freudenberg
• Trelleborg
• Hallite
• John Crane
• James Walker
• NAK

Types

• Profiled nitrile rubber axial clamp seals
• Stainless steel band clamped axial seals
• Axial seals with integrated labyrinth features
• Axial lip seals for large diameter shafts
• Metal-cased axial clamp seals
• Composite axial clamp seal variants

Part Numbers

Common axial clamp seal product lines include:

• SKF axial clamp seal standard series (shaft diameters 150 mm to 4600 mm)
• Trelleborg axial lip and clamp seal ranges
• Freudenberg large diameter axial seals
• Hallite axial seals for heavy industrial applications
• James Walker and John Crane axial clamp seals

Labyrinth seals are advanced non-contact sealing solutions designed with a complex, maze-like path that effectively prevents the ingress of contaminants and the leakage of fluids in rotating equipment. Unlike traditional contact seals, labyrinth seals reduce friction and wear, providing superior durability and extended service life. They offer excellent reliability in high-speed, high-temperature, and high-pressure environments while ensuring minimal maintenance and improved operational efficiency. Their ability to protect bearings and critical components from dirt, dust, and moisture significantly enhances equipment longevity and safety.

Industrial Applications

• Aerospace: Gas turbines, jet engines, hydraulic and fuel systems
• Power Generation: Steam turbines, compressors, generators
• Automotive: Turbochargers, transmissions, differentials
• Oil & Gas: Pumps, compressors, turbines, wellhead equipment
• Chemical Processing: Pumps, valves, reactors handling aggressive fluids
• Marine: Propulsion systems, stern tubes, deck machinery
• Manufacturing: Rolling mills, heavy-duty machinery
• Vacuum Technology: Vacuum pumps and chambers
• Food & Beverage: Hygienic sealing in mixers, conveyors, packaging machinery

Brands

• Parjet
• Advanced EMC
• GMN
• Moretec
• UMAC
• SSP Seals
• CowSeal

Types

• Labyrinth ring seals
• Bearing isolators
• Stepped labyrinth seals
• Interlocking labyrinth seals
• Floating labyrinth seals
• Axial and radial labyrinth seals
• PTFE polymer-enhanced labyrinth seals

Part Numbers

Labyrinth seals are typically custom-engineered but popular configurations include:

• ParSave® Bearing Isolators by Parjet
• Advanced EMC polymer labyrinth seals
• GMN labyrinth seal models
• SSP customized labyrinth ring seals

Large diameter seals are specially designed sealing solutions engineered to withstand extreme conditions for equipment with large shaft or bore sizes. Manufactured with precision using CNC machining and advanced material technology, these seals offer reliable sealing performance in demanding environments. Benefits include excellent resistance to high pressure, temperature, and abrasive media, reduced leakage, longer service life, minimal maintenance, and compatibility with aggressive fluids. They play a crucial role in minimizing downtime and boosting operational efficiency in heavy industrial machinery.

Industrial Applications

• Heavy Engineering: Rolling mills, forging presses, steel and paper mills
• Construction Equipment: Earth-moving machinery, large hydraulic cylinders
• Automotive Manufacturing: Stamping presses, large drive shafts
• Wind Energy: Wind turbine shafts and hubs
• Marine and Offshore: Ship hydraulics, propeller shafts, dredgers
• Mining Industry: Large conveyors, crushers, excavators
• Power Generation: Turbine shafts, generators
• Railway and Transportation: Locomotives, axle housings
• Cement and Bulk Material Handling: Crushers, mixers, rotary kilns

Brands

• SKF
• Trelleborg
• Freudenberg
• Hallite
• James Walker
• Timken
• CV Technik
• Daemar

Types

• Single lip large diameter seals
• Multi-lip large diameter seals
• PTFE and polyurethane large diameter seals
• Split large diameter seals for easy installation
• Rubber-faced metal-backed large diameter seals
• Composite large diameter seals
• Custom-engineered large diameter sealing solutions

Part Numbers

• SKF large diameter seal series (540 mm to 4000 mm diameters)
• Trelleborg Turcon large diameter seals
• Freudenberg high-performance large diameter seals
• Hallite heavy-duty large diameter seals
• James Walker industrial large diameter seals
• Timken customized large diameter seals

Bearing shields are protective components fitted on bearings to guard against large contaminants like dust and debris, while retaining bearing lubricants. Typically made from metal or stainless steel, shields extend bearing life by preventing harmful particles from entering and reducing lubricant leakage. Unlike contact seals, shields do not touch the inner ring, resulting in minimal friction and lower torque, ensuring smooth, efficient operation even at high speeds. Their robust construction provides a wide temperature range and corrosion resistance, making them ideal for diverse industrial environments.

Industrial Applications

• Automotive: Wheel hubs, transmissions, engine components
• Industrial Machinery: Motors, pumps, conveyors
• Agricultural Equipment: Tractors, harvesters, irrigation machinery
• Household Appliances: Washing machines, dryers, fans
• Construction Equipment: Earth-moving machinery, hydraulic systems
• Electrical Devices: Electric motors, compressors
• Material Handling: Cranes, forklifts, conveyors
• Food Processing: Machinery requiring protection from dust and contaminants

Brands

• SKF
• Timken
• NTN
• NSK
• FAG (Schaeffler)
• KOYO
• Nachi
• NSK

Types

• Metal Shield (ZZ type, non-contact)
• Rubber Contact Seal (2RS type)
• Rubber Non-contact Seal (LLB type)
• Contact Seal with Spring (LLU type)
• Non-contact Rubber Seal (V-seal type)
• Stainless Steel Shields
• Double Shields and Double Seals

Part Numbers

Common shield and seal series include:

• SKF ZZ, 2RS, LLB, LLU series
• Timken shielded and sealed bearing part numbers
• NTN shield and seal types
• NSK ZZ and 2RS series
• FAG metal shield and seal variants
• KOYO ZZ and 2RS product numbers

Cassette seals are multi-component radial shaft seals designed to provide exceptional sealing performance by retaining lubricants and excluding contaminants such as dust, mud, and water. Their integrated design combines multiple sealing elements including lips and labyrinths within a single housing, delivering superior protection for wheel hubs, axles, and drive systems. Benefits include high sealing efficiency, reduced friction, extended seal and bearing life, simple installation without need for shaft hardening or grinding, and enhanced durability in harsh environments. Cassette seals reduce maintenance, improve operational reliability, and are ideal for heavy-duty machinery.

Industrial Applications

• Automotive: Wheel hubs, axle shafts, differentials
• Construction Equipment: Excavators, loaders, bulldozers
• Agriculture: Tractors, harvesters, combine harvesters
• Mining: Heavy machinery, conveyors, crushers
• Industrial Transportation: Off-highway vehicles, military vehicles
• Material Handling: Cranes, forklifts
• Power Transmission: Axles, drive shafts
• Railways: Locomotives, wagons

Brands

• Freudenberg Sealing Technologies
• SKF
• NAK Seals
• Angst+Pfister
• Maxspare
• FTL Technology
• Nak Seals

Types

• Multi-lip cassette seals
• Cassette seals with dirt-repelling labyrinths
• High-speed cassette seals
• Heavy-duty cassette seals with integrated wear sleeves
• Cassette seals with elastomer or fluorocarbon lips
• Split cassette seals for easy replacement

Part Numbers

Common cassette seal series and references include:

• Freudenberg S4 cassette seal and HS-EVO series
• SKF MUD11 cassette seal
• NAK ST type cassette seals
• Angst+Pfister powertrain cassette seals
• Maxspare industrial cassette seals

Felt seals are porous, soft sealing components made primarily from compressed natural wool or synthetic fibers. Known for their excellent ability to retain lubricants and exclude dust, dirt, and large contaminants, felt seals provide effective protection for bearings and rotary assemblies. They require minimal shaft pressure to function, exhibit good oil wicking properties to ensure continuous lubrication, and offer cost-effective, reliable sealing in low-speed or less critical environments. Felt seals also contribute to noise reduction and vibration damping, enhancing machinery longevity and performance.

Industrial Applications

• Automotive: Lubrication seals in transmissions, gearboxes, and wheel hubs
• Industrial Machinery: Bearings, conveyor rollers, low-speed shafts
• Agricultural Equipment: Seals for tractors, harvesters, irrigation systems
• Textile Industry: Shaft seals, lubrication wicks in spinning and weaving machines
• Manufacturing: Motors, pumps, compressors in less abrasive environments
• HVAC: Fan shafts, low-speed rotary seals
• Packaging Industry: Lubricated seals in packaging machinery
• Food Processing: Non-critical sealing where light protection is sufficient
• Furniture and Appliances: Rotary shaft seals, bearing wipers

Brands

• British Felt
• Hennig Gasket
• AFG Corporation
• Sujan Industries
• Polyfluoro Ltd
• BDS Bearing Supplies
• Advanced Seals & Gaskets

Types

• Natural wool felt seals
• Synthetic fiber felt seals (polyester, polypropylene)
• Lubricant-impregnated felt seals
• Custom-cut shaped felt seals and gaskets
• Oil and grease retaining felt seals
• Noise and vibration damping felt pads
• Felt packing seals for low-pressure rotary shafts

Part Numbers

Felt seals are often custom manufactured but standard types include:

• SAE F-3, F-51, F-55 grade felt seals
• Lubricated wool felt bearing seals
• Industrial felt sheets converted to seals/gaskets
• Pre-cut oil and grease retaining felt seals for standard shaft dimensions

Magnetic seals are advanced sealing solutions that use magnetic fluid to create a contactless, leak-proof barrier between rotating and stationary parts. The magnetic fluid is held in place by a magnetic field, forming a flexible yet impermeable seal that dramatically reduces friction and wear. Benefits include highly efficient sealing that prevents leaks, long service life, minimal maintenance, excellent performance under vacuum, high-pressure and extreme temperature conditions, and suitability for contamination-sensitive environments. Magnetic seals enhance system reliability, reduce downtime, and lower operational costs.

Industrial Applications

• Semiconductor Manufacturing: Vacuum pumps, wafer handling systems
• Aerospace: Aircraft engines, hydraulic systems, satellite components
• Medical Devices: Blood pumps, centrifuges, sterile equipment
• Chemical Processing: Pumps, valves for corrosive or toxic fluids
• Food & Beverage: Hygienic sealing for processing equipment
• Flat Panel Display Manufacturing: Precision machinery sealing
• Energy Sector: Turbines, compressors, renewables
• Robotics & Automation: High-speed rotating equipment requiring contamination-free operation
• Vacuum Technology: Vacuum pumps and chambers

Brands

• Moretec
• UMAC
• Ferrotec
• Zhaoqiang Seal
• CowSeal
• SSP Seals
• Temper Corporation

Types

• Magnetic fluid rotary seals
• Magnetic fluid vacuum seals
• Magnetic coupling seals
• Contactless magnetic seals for shafts and housings
• High-temperature magnetic seals
• High-vacuum magnetic seals
• Custom magnetic seal solutions

Part Numbers

Magnetic seals are generally custom-engineered, but popular product frameworks include:

• Moretec standard and modified magnetic fluid seals
• UMAC bespoke magnetic seals for aerospace and defense
• Ferrotec ferrofluidic seal ranges
• Custom magnetic seals from SSP and Zhaoqiang
• CowSeal magnetic rotary seals

Machined seals are precision-engineered sealing solutions crafted to meet stringent industrial requirements. Manufactured using advanced machining processes, these seals provide a perfect fit for complex and custom applications. They excel under extreme conditions such as high pressures, elevated temperatures, aggressive chemicals, and vacuum environments. Benefits include superior leak prevention, enhanced equipment efficiency, longer service life, reduced maintenance costs, and robust performance in challenging industrial systems.

Industrial Applications

• Chemical Processing: Sealing aggressive fluids in reactors and pumps
• Aerospace: Sealing fuel systems, engines, and propulsion equipment
• Power Generation: Turbine seals, generator housings, steam systems
• Oil & Gas: High-pressure sealing in drilling equipment and pipelines
• Automotive Manufacturing: Engine, transmission, and cooling system seals
• Water Treatment: Sealing valves, pumps, and filtration systems
• Semiconductor Industry: Leak-proof seals in vacuum and process equipment
• Industrial Machinery: Compressors, hydraulic systems, gearboxes
• Pharmaceuticals & Food Processing: Hygienic seals for sterile processes

Brands

• SKF
• Trelleborg
• Technetics
• John Crane
• James Walker
• Freudenberg
• Parker Hannifin
• Stein Seal

Types

• Machined metal seals (stainless steel, Inconel, titanium)
• PTFE and composite machined seals
• Custom-profile machined face seals
• High-temperature machined seals
• Cryogenic machined seals
• Vacuum and pressure-rated machined seals
• Specialty coatings and platings: silver, gold, nickel, PTFE

Part Numbers

Popular machined seal product families include:

• SKF machined metal seal series
• Technetics NAFLEX and K-Port series
• John Crane custom machined mechanical seals
• Trelleborg Turcon machined sealing systems
• Freudenberg precision machined seal ranges
• Stein Seal custom-engineered machined seals

Metal face seals, also known as mechanical face seals or heavy-duty face seals, are precision-engineered components designed for extreme operating conditions requiring high reliability and durability. These seals consist of two metal sealing rings that face each other with an elastomeric element ensuring proper alignment and sealing. They provide outstanding protection against contamination and fluid leakage in harsh environments, delivering excellent wear resistance, high pressure tolerance, and resistance to abrasive and corrosive media. Benefits include extended equipment life, reduced maintenance, and superior sealing performance in demanding applications where conventional elastomer seals fail.

Industrial Applications

• Construction Machinery: Excavators, bulldozers, tracked vehicles
• Mining Industry: Conveyors, underground and open-pit mining equipment
• Agriculture: Tractors, harvesters, heavy machinery
• Heavy Trucks and Transport: Axles, drive shafts
• Tunnel Boring Machines: Sealing rotating shafts in abrasive environments
• Wind Power: Wind turbine gearboxes and shafts
• Offshore and Marine: Dredgers, tidal turbines, deck machinery
• Industrial Gearboxes and Mixers

Brands

• SKF
• Trelleborg
• GOETZE
• John Crane
• Meccanotecnica Umbra
• Stein Seal
• James Walker
• Freudenberg

Types

• Duo Cone Metal Face Seals (Type DO with O-ring secondary seal)
• Metal Face Seals with diamond-shaped elastomer secondary (Type DF)
• Floating metal face seals
• Trapezoidal metal ring seals
• Single and double face metal seal rings
• Special high-temperature metal face seals
• Composite metal face seals with bonded elements

Part Numbers

Common metal face seal part series and references:

• SKF Duo Cone and Metal Face Seal series
• John Crane metal mechanical face seals
• Trelleborg Zurcon® Heavy Duty Face Seals
• GOETZE metal face seal sets
• Stein Seal custom design face seals
• Meccanotecnica Umbra industrial face seals

Oil seals, also known as rotary shaft seals, are critical components designed to retain lubricants and prevent contamination in rotating and reciprocating machinery shafts. They provide superior sealing performance by preventing oil leakage and excluding dirt, dust, and moisture. Benefits include extended equipment life, reduced maintenance, enhanced energy efficiency due to lower friction, and reliable operation under varied pressure and temperature conditions. They are engineered to fit a wide range of shaft sizes and speeds, delivering optimal protection in harsh industrial environments.

Industrial Applications

• Automotive: Engines, transmissions, gearboxes, axle systems
• Industrial Machinery: Pumps, compressors, motors, gearboxes
• Construction: Hydraulic cylinders, heavy-duty equipment
• Agriculture: Tractors, harvesters, irrigation machinery
• Power Generation: Turbines, generators, steam drives
• Marine: Propulsion shafts, steering systems
• Chemical Processing: Sealing pumps and mixers with corrosive fluids
• Food & Beverage: Hygienic machinery requiring FDA-compliant seals
• HVAC: Motors, compressors, blowers

Brands

• SKF
• Timken
• Parker Hannifin
• Freudenberg (Simmerring®)
• James Walker
• NOK
• Hallite
• Trelleborg

Types

• Rubber cased oil seals with single or double lips
• Metal cased oil seals with spring-loaded sealing lips
• PTFE (Teflon) oil seals for chemical resistance and high temperatures
• Cassette seals for enhanced grease/oil retention
• Split oil seals for easier installation
• Composite and bonded oil seals
• Specialty heat and chemical resistant oil seals

Part Numbers

Common oil seal part series include:

• SKF: 4200, 4300, 4400 series
• Freudenberg Simmerring: 30x47x7, 40x72x8 sizes
• Parker: 7100, 7200, 7300 series
• James Walker: MR series
• Timken Redi-Seals: Custom sizes
• NOK standard and custom oil seals

Radial shaft seals, also known as rotary shaft seals or oil seals, are essential components designed to seal rotating shafts and prevent lubrication leakage while excluding contaminants like dirt, dust, and moisture. Featuring a flexible sealing lip and a robust metal case, these seals offer excellent wear resistance, low friction, and operational reliability across diverse conditions. Benefits include extended machinery life, reduced downtime, energy efficiency through minimized friction, and enhanced protection of bearings and other critical machine parts.

Industrial Applications

• Automotive: Engines, transmissions, axle seals
• Industrial Machinery: Gearboxes, pumps, motors
• Construction Equipment: Hydraulic systems, drive shafts
• Agriculture: Tractors, harvesters, PTO shafts
• Power Generation: Turbines, generators, compressors
• Marine: Propeller shafts, deck machinery
• Chemical Processing: Pumps and mixers with aggressive media
• Electronics: Cooling fans, rotating assemblies

Brands

• SKF
• Freudenberg (Simmerring®)
• Parker Hannifin
• James Walker
• Hallite
• Trelleborg
• NOK
• Timken

Types

• Lip seals (single or dual lip)
• Rubber-cased radial shaft seals
• Metal-cased radial shaft seals
• PTFE (Teflon) lip seals
• V-ring seals for secondary protection
• Radial O-rings for static and dynamic sealing
• Composite material seals

Part Numbers

• SKF 4200, 4300 series radial shaft seals
• Freudenberg Simmerring® 30x47x7, 40x72x8
• Parker V-Seal 7100, 7200 series
• James Walker MR series
• Hallite 850, 830 series
• NOK standard radial oil seals

Rod and buffer seals are critical components in hydraulic cylinder applications, primarily designed to maintain sealing contact between the cylinder head and the piston rod during sliding motion. Rod seals prevent hydraulic fluid leakage under pressure, while buffer seals protect the primary rod seal by absorbing pressure spikes and reducing extrusion damage. Together, they extend seal life, reduce maintenance frequency, improve reliability, and ensure smooth, leak-free operation in hydraulic systems.

Industrial Applications

• Construction Equipment: Excavators, loaders, bulldozers
• Agriculture: Tractors, harvesters, hydraulic implements
• Mining: Drilling rigs, earth-moving machinery
• Material Handling: Forklifts, cranes, lift trucks
• Manufacturing: Hydraulic presses, injection molding machines
• Oil & Gas: Hydraulic actuators, pipeline control systems
• Marine: Deck machinery, steering mechanisms
• Power Generation: Turbines, hydraulic control systems

Brands

• SKF
• Parker Hannifin
• Trelleborg
• Hallite
• NOK
• Freudenberg
• James Walker
• Rocket Seals

Types

• Lip seals with back-up rings (heavy-duty, high-pressure applications)
• Lip seals without back-up rings (light to medium duty)
• O-ring energized glide ring seals (optimal for lubrication and flexibility)
• Polyurethane rod seals
• PTFE rod seals
• Anti-extrusion buffer seals
• Composite rod and buffer seal systems

Part Numbers

Common product ranges and part numbers:

• SKF Rod & Buffer seal series (various sizes)
• Parker Rod Seals: 7100, 7200 series
• Trelleborg Zurcon® Buffer Seals
• Hallite Rod Seals: 850, 830 series
• NOK Rod & Buffer seals
• James Walker Rod Buffer seals
• Rocket Seals DYR, KR, MKR, MYKR, MYR styles

Static seals are crucial sealing components designed to prevent leakage between two stationary surfaces where no relative motion occurs. They create a reliable barrier against fluids, gases, dust, and contaminants, ensuring system integrity and operational safety. Benefits include low maintenance, long service life, simple installation, excellent compatibility with various materials, and strong resistance to pressure, temperature, and chemicals. Static seals minimize leakages and help maintain pressure in flanges, valves, pumps, and pipe joints in industrial equipment.

Industrial Applications

• Oil & Gas: Flange sealing, valve covers, wellhead components
• Chemical Processing: Pump casings, reactors, pipe joints
• Automotive: Engine block sealing, gearbox flanges
• Power Generation: Turbine housings, steam systems, generator casings
• Food & Beverage: Hygienic seals for tanks, valves, processing equipment
• Pharmaceutical: Sterile sealing of machines and tank closures
• HVAC: Duct connections, flange seals, casing joints
• Electronics: Waterproof enclosure sealing
• Water Treatment: Valve bonnets, pipe joints, pump covers

Brands

• Trelleborg
• SKF
• Parker Hannifin
• James Walker
• Hallite
• Freudenberg
• Klinger
• Frenzelit

Types

• O-Rings (elastomeric, silicone, fluorocarbon)
• Flat gaskets (rubber, cork, metal, graphite)
• Metal seals and washers (copper, stainless steel, aluminum)
• Lip seals (shaft and rod sealing applications)
• Diaphragms and bellows seals (flexible static seals)
• Inflatable static seals (for airlock doors, hatches)
• Bonded seals and composite static seals

Part Numbers

Common static seal series and references:

• Trelleborg: Turcon PTFE and elastomer static seal ranges
• SKF: O-ring and flat gasket part numbers
• Parker: Various static sealing profile part series
• James Walker: Metaflex and other high-performance static seals
• Hallite: Inflatable and flat static seals
• Klinger: Flat gaskets and specialty static sealing materials

Teflon (PTFE) seals are high-performance sealing solutions designed for the most demanding environments, offering unrivaled chemical resistance, low friction, and broad temperature stability from -200°C to +260°C. These seals ensure maximum durability, minimal shaft wear, and reliable leak prevention in aggressive media and high-speed operations. Benefits include extended service life, resistance to acids, alkalis, solvents, and food-grade non-contaminating properties.

Industrial Applications

• Chemical Processing: Pumps, mixers, valves handling acids and corrosives
• Pharmaceuticals: Sterile filling equipment, processing machinery
• Food & Beverage: Bottling machines, production lines, filling valves
• Automotive: Gearboxes, transmissions, rotating shafts
• Power Plants: Turbines, steam systems, hydraulic actuators
• Aerospace: Hydraulic systems, landing gear, turbines
• Oil & Gas: Refining systems, petrochemical pumps
• Textile & Paper: Dyeing and pulp machines, processing valves
• Mining & Heavy Industry: Conveyors, crushers, specialty pumps

Brands

• DuPont (Teflon)
• SKF
• Sealmax
• Parker Hannifin
• Trelleborg
• Freudenberg
• James Walker
• Polyfluoro
• Chemours

Types

• PTFE lip seals
• PTFE rod seals
• PTFE piston seals
• PTFE mechanical (bellow) seals
• Composite PTFE/bronze seals
• PTFE carbon-filled seals
• Metal-cased PTFE seals
• FDA-compliant food grade PTFE seals

Part Numbers

• SKF: PTFE Radial Shaft Seal series, HMSA10, HDSE series
• Sealmax: FDA & BAM certified PTFE seals
• Trelleborg: Turcon Variseal, Turcon Glyd Ring
• Freudenberg: Simmerring PTFE rotary seals
• Polyfluoro: TLIP series, TUP series
• Parker: PTFE rotary shaft seals 7100/7200 series

V-Ring seals are all-rubber axial shaft seals designed to protect bearings and rotary components from dust, dirt, water, grease, and other contaminants. They function as both a primary and secondary seal, delivering reliable performance in demanding industries. Their flexible lip provides excellent sealing while reducing wear on shafts and housings. Benefits include improved bearing protection, extended service life, reduced downtime, cost-effective sealing, and easy installation without additional machining requirements.

Industrial Applications

• Automotive: Wheel hubs, transmissions, steering systems
• Agriculture: Tractors, harvesters, hydraulic machinery
• Construction Equipment: Excavators, loaders, heavy-duty cylinders
• Steel Industry: Rolling mills, continuous casting machines, gearboxes
• Mining: Conveyors, crushers, drilling systems
• Marine: Propulsion systems, stern tubes, deck machinery
• Power Plants: Turbines, pumps, compressors
• General Industrial: Electric motors, gearboxes, pumps, sealing housings

Brands

• SKF
• Trelleborg
• Freudenberg
• Parker Hannifin
• James Walker
• Hallite
• Aston Seals
• Merkel

Types

• Standard V-Ring seal (VA type)
• Wide body V-Ring seal (VS type)
• Narrow cross-section V-Ring (VL type)
• Heavy-duty V-Ring seal (VE type)
• NBR rubber V-Ring seals
• FKM/Viton V-Ring seals for high temperature
• High-speed reinforced V-Ring seals

Part Numbers

Widely used V-Ring seal series and sizes include:

• SKF: V-Ring VA, VS, VL, VE types
• Trelleborg: VR1, VR2, VR3 series
• Freudenberg: Simmerring V-Ring seals
• James Walker: V-Seal ranges
• Parker: V-Ring rubber sealing series
• Aston Seals: VR, VRS series

Wellhead seals are critical sealing components used in oilfield equipment to maintain pressure integrity and prevent leakage in wellhead assemblies. They provide reliable sealing performance under extreme pressure, temperature, and corrosive fluid conditions. Benefits include enhanced safety, improved well control, extended equipment lifespan, and reduced maintenance downtime. These seals ensure secure sealing between casings, tubing hangers, and other wellhead components for safe and efficient drilling and production operations.

Industrial Applications

• Oil & Gas: Wellhead assemblies, Christmas trees, tubing hangers, casing hangers
• Petrochemical Industry: Pressure control systems, refining equipment
• Offshore Drilling: Subsea wellheads, blowout preventers, risers
• Power Plants: High-pressure sealing systems, steam extraction systems
• Mining Industry: High-pressure hydraulic sealing in drilling systems

Brands

• Halliburton
• Cameron (Schlumberger)
• Baker Hughes
• FMC Technologies
• NOV (National Oilwell Varco)
• Trelleborg Sealing Solutions
• Parker Hannifin
• James Walker

Types

• Elastomeric wellhead seals
• Metal-to-metal wellhead seals
• Composite sealing systems
• High-temperature wellhead seals
• Subsea wellhead seals
• Primary and secondary sealing rings
• HNBR, FKM, and AFLAS material seals

Part Numbers

Common wellhead seal part series and references include:

• Cameron: HPE, UHP, T3 Wellhead Seal series
• NOV: WP, WPX, BX gasket seal rings
• FMC: D Series, Weco Seals, Metal Seal Assemblies
• Trelleborg: XploR HNBR Wellhead Seals, WSO-R series
• Parker: V-Seal and PTFE composite wellhead seals
• James Walker: Metaflex, Wellseal series

Wiper seals, also known as dust seals or scraper seals, are essential hydraulic and pneumatic sealing components designed to prevent dust, dirt, moisture, and other contaminants from entering cylinder assemblies. They improve the performance and life of hydraulic systems by keeping the rod and sealing area clean. Benefits include extended equipment life, reduced maintenance downtime, increased sealing efficiency, and reliable operation under harsh working conditions.

Industrial Applications

• Construction Equipment: Hydraulic cylinders for excavators, loaders, bulldozers
• Agriculture: Tractors, harvesters, hydraulic implements
• Material Handling: Forklifts, cranes, lift trucks
• Mining Industry: Drilling rigs, hydraulic presses, earth-moving equipment
• Automotive: Shock absorbers, suspensions, steering systems
• Oil & Gas: Hydraulic actuators, cylinder rods, offshore equipment
• Steel & Heavy Industry: Rolling mills, forging presses, industrial hydraulic systems
• Marine and Offshore: Deck machinery, hydraulic lifting systems
• Aerospace: Landing gear systems, aircraft hydraulic cylinders

Brands

• Hallite
• NOK
• SKF
• Trelleborg
• Parker Hannifin
• Merkel
• Gapi
• Aston Seals

Types

• Single-acting wiper seal
• Double-acting wiper seal
• Metal-cased wiper seal
• Polyurethane wiper seal
• NBR rubber wiper seal
• PTFE wiper seal
• Heavy-duty reinforced wiper seal

Part Numbers

Commonly available wiper seal part numbers and series include:

• Hallite: 520, 820, 839, 850 series
• NOK: DKB, DKH, DLI, DH series
• SKF: EXW, GSW, HDS7 series
• Trelleborg: WRM, WSA, WSM series
• Merkel: ZW, ZRS, DA series
• Aston Seals: WR, WRM, WRC series

Lip seals, also known as rotary shaft seals, are precision-engineered sealing solutions designed to prevent leakage of lubricants and ingress of contaminants in rotating and reciprocating equipment. Featuring a flexible sealing lip that maintains contact with the shaft, they provide excellent sealing under dynamic conditions. Benefits include superior wear resistance, low friction, extended equipment life, reduced maintenance, and adaptability to wide temperature and pressure ranges. Lip seals ensure smooth operation and protect critical machinery components from damage.

Industrial Applications

• Automotive: Engine crankshafts, transmissions, differentials, axle seals
• Aerospace: Aircraft engines, landing gear, hydraulic actuators
• Oil & Gas: Pumps, compressors, valves handling aggressive fluids
• Food and Beverage: Mixers, conveyors, hygienic sealing applications
• Chemical Processing: Pumps, reactors, mixers, rotating equipment
• Manufacturing: Gearboxes, motors, hydraulic cylinders, compressors
• Pneumatics: Cylinders, actuators, valves
• Power Generation: Turbines, generators, steam drives
• Marine: Propulsion shafts, steering systems

Brands

• SKF
• Freudenberg (Simmerring®)
• Parker Hannifin
• James Walker
• Hallite
• Trelleborg
• NOK
• Aston Seals

Types

• Single lip seals
• Dual lip seals (with dust lip)
• PTFE lip seals for high temperature and chemical resistance
• Nitrile rubber (NBR) lip seals
• Fluoroelastomer (FKM/Viton) lip seals
• Polyurethane (PU) lip seals
• Spring-energized lip seals
• Split lip seals

Part Numbers

Common product ranges include:

• SKF 4200, 4300, 4500 series
• Freudenberg Simmerring 30x47x7, 40x72x8 sizes
• Parker 7100, 7200, 7300 series
• James Walker R series
• Hallite 810, 830, 850 series
• Trelleborg TRB lip seal ranges

Piston seals are vital components used in hydraulic and pneumatic cylinders to prevent fluid leakage between the piston and cylinder bore. They ensure pressure retention inside the cylinder, enabling efficient piston movement and optimum system performance. Key benefits include high wear resistance, excellent pressure handling, reduced friction, enhanced durability, and reliable sealing under extreme pressures and temperatures. Piston seals contribute to longer cylinder life, lower maintenance costs, and smooth operation in various industrial machinery.

Industrial Applications

• Construction Equipment: Excavators, loaders, hydraulic presses
• Agriculture: Tractors, harvesters, irrigation machinery
• Automotive: Brake systems, shock absorbers, suspension cylinders
• Manufacturing: Injection molding machines, presses
• Material Handling: Forklifts, cranes, hydraulic actuators
• Oil & Gas: Hydraulic control valves, drilling machinery
• Aerospace: Landing gear hydraulic systems, actuators
• Mining: Earthmoving equipment, drilling rigs

Brands

• SKF
• Trelleborg
• Parker Hannifin
• Merkel
• James Walker
• Freudenberg
• Hallite
• Sealmax

Types

• Polyurethane piston seals (high abrasion resistance)
• PTFE piston seals (low friction, chemical resistance)
• Polyamide piston seals (high strength, wear resistance)
• Composite two-part piston seals
• O-ring energized piston seals
• Single-acting and double-acting piston seals
• Custom machined piston seals

Part Numbers

Popular piston seal series and references:

• SKF MPV, DPV, CUT, SCP series
• Merkel Omegat OMK-MR, OMK-S, OMKU-MR
• Parker 7100, 7200 series
• Trelleborg Turcon Variseal, Glyd Ring
• James Walker Metaflex piston seals
• Freudenberg Simmerring piston seal series

SKF Spectra Seals are high-performance engineered plastic seals designed for demanding applications where conventional elastomer or thermoplastic seals cannot withstand extreme temperatures, aggressive chemicals, abrasive media, high surface speeds, or high pressures. Made from advanced materials like PTFE-based compounds, UHMWPE, and PEEK, they offer low friction, excellent wear resistance, and outstanding chemical compatibility. Benefits include longer service life, reduced friction losses, reliable sealing at high speeds in dry or lubricated environments, and resistance to harsh chemicals and solvents.skf+2

Industrial Applications

• Oil & Gas: Wellhead seals, hydraulic cylinders, valves
• Chemical Processing: Pumps, mixers, reactors with aggressive fluids
• Pharmaceuticals: Sterile sealing in processing equipment
• Food & Beverage: High-purity seals for hygienic processes
• Power Generation: Turbines, steam systems, hydraulic actuators
• Aerospace: Hydraulic systems, landing gear, fuel systems
• Mining & Construction: Heavy-duty hydraulic cylinders, earthmoving equipment
• Marine: Deck machinery, hydraulic actuators
• General Industrial: Fluid handling, power transmission, rotary manifolds

Brands

• SKF (Original manufacturer)
• Parker Hannifin
• Trelleborg
• James Walker
• Freudenberg
• Chemours (Teflon material)

Types

• PTFE-based lip seals
• Ultra-high-molecular-weight polyethylene (UHMWPE) seals
• Polyetheretherketone (PEEK) seals
• Custom machined Spectra seals
• Low friction rotary and reciprocating seals
• High temperature and chemical resistant Spectra seals

Part Numbers

Popular SKF Spectra Seal part series include:

• SKF Spectraseal line with PTFE/UHMWPE/PEEK material options
• Machined seals concept for custom applications
• SKF bore-tite radial shaft seal coatings with Spectra sealing materials
• Special product codes per customer engineering requirements

Track pin seals are specialized sealing elements engineered for lubricated track chains and undercarriage systems in earthmoving and construction equipment. Their primary role is to keep dirt, mud, water, and abrasive particles out of the pin and bushing joint, ensuring the longevity of track assemblies and reducing wear. Track pin seals help maintain optimum lubrication, extend equipment lifespan, lower service intervals, and boost system reliability in harsh working conditions.

Industrial Applications

• Construction Equipment: Excavators, bulldozers, loaders
• Mining Machinery: Crushing plants, drilling rigs, dumpers
• Agriculture: Tractors, tracked farm machinery
• Material Handling: Crawler cranes, lifting machines
• Earthmoving: Track chains, undercarriage systems, compactors
• Steel Industry: Rolling mills, tracked conveyors
• Railways: Track-laying machines, maintenance vehicles

Brands

• SKF (Trackstar)
• Caterpillar (CAT)
• Lucas Parts
• Parker Hannifin
• Trelleborg
• Hallite
• NOK
• ThermoTraks
• Ultrafab

Types

• Polyurethane track pin seals
• Nitrile rubber track pin seals
• Heavy-duty twin-lip track pin seals
• Single-lip pin seals
• Composite elastomer track seals
• Metal-backed track pin seals

Part Numbers

Common series and references include:

• SKF Trackstar: 200, 300 series
• CAT: Part numbers 8E-5803, 9W-6649, 6Y-5232
• Trelleborg: TSP, PU series
• Parker Hannifin: 7100, 7200 series
• Hallite: 720 series
• NOK: DKB series