YDTech® manufacturer of 1.5x6.8,1.5x7.8,1.5x9.8,1.5x11.8,1.5x13.8 precision needle rollers sizes(NRA,NRB) and needle rollers stocks! supplier of 1x5.8,1x6.8,1x7.8,1x9.8,1.5x5.8, cylindrical rollers or needle rollers stocks(G2,G3) in china.

A needle roller is a type of roller bearing that uses long and thin cylindrical rollers (needles) instead of spherical balls to reduce friction between two parts. Needle rollers are commonly used in applications where high radial load capacity is required in a small space, such as in automotive transmissions and aircraft engines. 1x5.8,1x6.8 1x7.8,1x9.8,1.5x5.8,1.5x6.8,1.5x7.8,1.5x9.8,1.5x11.8,1.5x13.8

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.

Cylindrical rollers are cylindrical shaped rolling elements used in cylindrical roller bearings. These bearings use cylindrical rollers instead of balls to reduce friction between two parts. The rollers are usually guided by two ribs on either the inner or outer ring of the bearing, and the shape of the rollers allows them to handle high radial loads. Cylindrical roller bearings are commonly used in applications such as machine tool spindles, rolling mills, and gearboxes

the ends of needle rollers had different types: such as:NRA (round ends), NRB (flat ends), crowned ends, pointed ends, or one end is round(pointed), the other end is flat etc.

needle rollers main use is as rolling elements in bearings where they are particularly useful when space is limited and a high radial load is required. They are also useful as locating pins and mini shafts.

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

Technical parameters of needle rollers