Scorpa SY250 / Yamaha TYZ - Main Bearing

Main bearing to fit the Scorpa SY250 and Yamaha TYZ trials bikes

Sold individually, 2 required per bike.

JTKET Koyo 6305R SH

25x62x17

JTEKT (Koyo) nomenclature: 
The R is a higher load rating. Basic load ratings : Cr 32.7 kN
The SH designation stands for Special Heat Treatment

Specification data (main dimensions, etc.)

d  inner diameter 25 mm
D  outer diameter 62 mm
B  width 17 mm
r(min.) 1.1 mm
Basic load ratings  Cr : 32.7 kN
Basic load ratings  C0r : 13.4 kN
Fatigue load limit  Cu :1.20 kN
factor  f0 : 11.9
Limiting speeds (Grease lub.) 11000 min-1
Limiting speeds (Oil lub.) 14000 min-1

Mounting dimensions, weight (reference)

da(min.) 31.5 mm
Da(max.) 55.5 mm
ra(max.) 1 mm
Mass(Refer.) 0.255 kg