YDTech® manufacturer of precision needle rollers sizes(NRA,NRB) and needle rollers stocks! supplier of standard cylindrical rollers or needle rollers stocks(G2,G3) in china.

we have over 20 years of manufacturing experience of precision rolelrs. we had most stock, delivery time: send to europe, USA, or canada only 3-5 work days

usually, the material of needle rollers(cylindrical rollers) is chrome steel 52100, then stainless steel: such as 302,304,316,306AL,420,420C,440C etc. then tungsten steel, the newest ceramic material is silicon nitride (si3n4), or zirconium oxide(ZrO2) etc.

Needle roller bearings are a type of rolling element bearing that uses long and thin cylindrical rollers instead of balls. These rollers have a high length-to-diameter ratio and can support radial loads, making them suitable for use in a variety of industrial applications. Needle roller bearings are typically used in applications where space is limited, and high load-carrying capacity is required. They are commonly used in automotive and aerospace applications, as well as in various types of machinery, such as gearboxes, engines, and pumps.

The design of a needle roller bearing typically consists of a thin outer ring, a series of cylindrical rollers, and an inner ring, which may or may not be separable from the outer ring. Needle roller bearings are often used in conjunction with thrust bearings to provide additional support for axial loads. They are available in a variety of configurations, including single-row, double-row, and full complement designs, and can be made from a range of materials, such as steel, brass, or plastic.

manufacturer and supplier of needle rollers

we are professional manufacture of bearing rollers and cylindrical needle rollers. we produce rollers of diameter 0.5 mm to 60 mm. the rollers could satisfy the request of DIN 5402 G2 rollers.

standard sizes of needle rollers and cylindrical rollers