Basic size of mm

d	55
D	120
T	31.5

The basic rated load is kN

trends C	166
static state Co	163

Fatigue load limit Pu	19.3

Rated rotation speed is r/min

Refer to the speed	4800
limit speed	5600

quality	1.55
model	*30311J2/Q
ISO335 dimension series (ABMA)	2FB

Dimensions are mm

d	55
d1 ～	84
B	29
C	25
r1,2 min	2.5
r3,4 min	2
a	24

Shoulder gear and chamfer size mm

Da max	71
db min	65
Da min	104
Da max	112
Db min	111
Ca min	4
Cb min	6.5
ra max	2
rb max	2

Calculation coefficient

e	0.35
Y	1.7
Yo	0.9