Basic size of mm

d	45
D	68
B	22

The basic rated load is kN

trends C	81.5
static state Co	112

Fatigue load limit Pu	12.9

Rated rotation speed is r/min

Refer to the speed	-
limit speed	3800

quality	0.3

model

Bearing cylindrical hole	*C4909V1)
conical bore	*C4909K30V1)

Dimensions are mm

d	45
d2 ～	51.6
D1 ～	60.5
r1,2 min	0.6
s11) ～	4.7
s21) ～	1.7

Shoulder gear and chamfer size mm

da min	48.2
da max	51
Da min	-
Da max	64.8
Ca2) max	-
ra max	0.6

Calculation coefficient

k1	0.114
k2	0.1