S V Hi-Tech Bearing (India) Private Limited

Cup jewel bearings are a type of plain bearing where a metal spindle turns in a jewel-lined pivot hole, typically shaped like a torus and slightly larger than the shaft diameter. They are used in precision instruments where low friction, long life, and dimensional accuracy are important. Cup jewel bearings are often used in vertical shaft applications such as compasses and heat monitors. These bearings are known for their abrasion resistance, low friction torque, and high compressive strength, making them suitable for various precision instruments including electricity meters, water meters, and high-speed centrifuges.

Synthetic jewel bearings are precision miniature components typically made of synthetic sapphire and ruby. These materials are chosen for their superior hardness, ability to accept a high polish, and low friction properties. Synthetic sapphire and ruby are recognized universally as the ideal material for instruments, meters, control devices, and other precision mechanisms where low friction, long life, and dimensional accuracy are important.

A cone jewel bearing is a type of jewel bearing that is shaped like a cone. This design allows for a gradual contact point with the pivot, promoting stability and minimizing friction in mechanical movements.

In precision instruments, cone jewel bearings are used for delicate linkages that must carry very small forces, ensuring reliable and low-variability movement even when measuring small changes.

A hole jewel bearing is a type of jewel bearing that consists of a donut-shaped ruby part designed to fit over wheel arbors. These bearings are used in precision instruments and watches to reduce friction and wear. The ruby material is chosen for its hardness and wear resistance, allowing metal parts to slide more easily and reducing the revolving wheel friction.

Ring jewel bearings are a type of plain bearing used in precision instruments where low friction, long life, and dimensional accuracy are important. They consist of a metal spindle that turns in a jewel-lined pivot hole, typically shaped like a torus and slightly larger than the shaft diameter. These jewels are usually made from synthetic sapphire or ruby, which are forms of corundum.

Ring jewels are journal or annular bearings that contain a contoured hole shaped like an hourglass or an olive, rather than a straight cylindrical bore. This design provides a reduced contact area, causing lower friction between the shaft and the bearing. They are commonly found in instruments such as watches, dial indicators, and gimbal suspensions.

Cap jewel bearings are flat on one side and have a bombe (radius) on the other side, acting as thrust bearings commonly used in combination with other jewel bearings in various applications. They are used in precision instruments where low friction, long life, and dimensional accuracy are important. Cap jewels are typically made from synthetic sapphire or ruby, which are very hard and durable materials with a Mohs hardness of 9. They are used in applications such as gas or liquid flow meters, measuring meters, gyros, compasses, aircraft instruments, dial indicators, watches, and clocks.

A glass V-shaped jewel bearing is a type of jewel bearing that features a V-shaped groove, providing stability and reduced friction for the rotating pivot. Glass V-bearings have slightly lower friction because their surfaces are fire polished, making them suitable for sensitive magnetic meter movements, compasses, encoders, turbine flow devices, and galvanometers.

Glass V-shaped jewel bearings are ideal for instruments, meters, and precision mechanisms due to their low friction and long life. They are commonly used in applications where the moving element is light and requires minimal friction.