Basic size of mm

d	40
D	80
T	19.75

The basic rated load is kN

trends C	71
static state Co	68

Fatigue load limit Pu	7.65

Rated rotation speed is r/min

Refer to the speed	7000
limit speed	8500

quality	0.42
model	*30208J2/Q
ISO335 dimension series (ABMA)	3DB

Dimensions are mm

d	40
d1 ～	57.5
B	18
C	16
r1,2 min	1.5
r3,4 min	1.5
a	16

Shoulder gear and chamfer size mm

Da max	49
db min	47
Da min	69
Da max	73
Db min	74
Ca min	3
Cb min	3.5
ra max	1.5
rb max	1.5

Calculation coefficient

e	0.37
Y	1.6
Yo	0.9