Basic size of mm

d1	410
D	600
B	118

The basic rated load is kN

trends C	2450
static state Co	4900

Fatigue load limit Pu	345

Rated rotation speed is r/min

Refer to the speed	950
limit speed	1000

Mass bearing + tightening sleeve	150

model

bearing	*23988CCK/W33
tapered adapter-sleeve	OH3988H

Dimensions are mm

d1	410
d2 ～	484
d3	520
D1 ～	553
B1	189
B2	60
B3	77
b	16.7
k	9
r1,2 min	4

Shoulder gear and chamfer size mm

da max	484
db min	454
Da max	585
Ba min	17
ra max	3

Calculation coefficient

e	0.16
Y1	4.2
Y2	6.3
Yo	4