Open stamping outer ring roller bearing

model	HK4520
quality /m ≈kg	56

Closed stamping outer ring roller bearing

model	BK4520
quality/ m ≈kg	72

size mm

F w	45
D	52
C -0.3	20
Ct min	17.3
r min	0.8

Basic rated load N

live load Cr	27000
dead load C0r	59000

Fatigue limit load Cur N	7600
limit speed nG min–1	5900
Reference speed nB min–1	4450

Suitable for inner circle (must be ordered separately)

LR model	LR40X45X20,5
IR model	IR40X45X20,5