YDTech® manufacturer of loose needle rollers(G2G3G5) for needle roller bearing; supplier of precision cylindrical roller(G0G1G2G3G5) bearing in china.

we can be offered confirming to world standards as DIN 5402, IS 4217 and all equivalent international standards. We can also give rollers in G5, G3, G2 classes. G2, G3, and G5 are accuracy grades for needle rollers, which refer to the tolerances of their diameter and roundness.

G2: This is the highest accuracy grade for needle rollers, with a tolerance range of +/- 2 microns for diameter and roundness. G2 needle rollers are suitable for applications where very high precision is required, such as in the aerospace and medical industries.

G3: This is a medium accuracy grade for needle rollers, with a tolerance range of +/- 3 microns for diameter and roundness. G3 needle rollers are suitable for applications where moderate precision is required, such as in industrial machinery and automotive systems.

G5: This is a lower accuracy grade for needle rollers, with a tolerance range of +/- 5 microns for diameter and roundness. G5 needle rollers are suitable for applications where lower precision is acceptable, such as in general-purpose bearings and other industrial applications.

precision cylindrical needle rollers(G2)

Tolerance grade(G2) needle rollers:　diameter changes(µm) 1 the average diameter vibration_wmp(µm)0/-2,1/-3,-2/-4, -3/-5,-4/-6,-5/-7, -6/-8,-7/-9,-8/-10 circular deviation(max)1 diameter changes V_Dmpmax(µm) 1 Length Tolerance(mm) <0.20

precision cylindrical needle rollers(G3)

Tolerance grade(G2) needle rollers:　diameter changes(µm)3 the average diameter vibration_wmp(µm) 0/-3,-1.5/-4.5,-3/-6,-4.5/-7.5,-6/-9,-7/-10 circular deviation(max)1.5 diameter changes V_Dmpmax(µm) 1.5 Length Tolerance(µm) <0.20

precision cylindrical needle rollers(G5)

Tolerance grade(G2) needle rollers:　diameter changes(µm)3 the average diameter vibration_wmp(µm) 0/-5,-3/-8,-5/-10 circular deviation(max)2.5 diameter changes V_Dmpmax(µm) 2.5 Length Tolerance(µm) h13

can you manufacture precision cylindrical needle rollers(G1)?

yes,we can, but the price is very expensive.

automotive needle rollers for cylindrical roller bearing

tolerance of precision needle rollers

automotive needle rollers are roller bearing with cylindrical rollers. these needle roller bearing are thin and long in relation to their diameter have specially designed low cross section. the bearings have a high load carrying capacity and are extremely suitable for bearing arrangements where radial space is less or limited.

manufacturer and supply of cylindrical rollers

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