roller

Ceramic cylindrical roller, high performance for Bearing

Diameter & Roundness Unit ; μm

Lot Diameter Roller Dinameter

Grade Fm~To Variation Gauge Interval Preferred Gauges Cir max

DW/mm VDWL max IG

0 - 18 1 1 -10,...,-1 0 +1,...,+5 0.3

0 18 30 1 1 -10,...,-1 0 +1,...,+5 0.4

I - 18 2 1 -10,...,-1 0 +1,...,+5 0.4

I 18 30 2 1.5 -10.5,...,-1.5 0 +1.5,...,+6 0.5

II - 18 3 1 -10,...,-1 0 +1,...,+5 1.0

II 18 30 3 1.5 -19.5,...,-1.5 0 +2,...,+6 1.5

II 30 - 3 2 -20,...,-2 0 +3,...,+6 2.5

Length Unit: μm

Lot Diameter Roller Length

Grade Fm~To Variation Gauge Interval Preferred Gauges SDw max

LW/mm VLWL max IGL

0 - 26 6 6 -30,...,-6, 0 3

0 26 - 6 6 -30,...,-6, 0 3

I - 26 10 6 -30,...,-6, 0 5

I 26 - 10 10 -40,...,-10, 0 5

II - 26 14 6 -30,...,-6, 0 6

II 26 50 14 10 -40,...,-10, 0 6

II 50 - 14 12 -48,...,-12, 0 6

Ratio of Surface Roughness Unit : μm

Rolling Surface End face Chamfer angle

Grade Ra max

0 0.1 0.125 1.25

I 0.125 0.16 1.25

II 0.16 0.25 2.5

SUZHOU YONGQI MULTIPLIED CERAMIC CO.,LTD.

C E R A M I C I N N O V A T O R

roller