Basic size of mm

d	27.5
D	57.15
T	19.845

The basic rated load is kN

trends C	52
static state Co	51

Fatigue load limit Pu	5.6

Rated rotation speed is r/min

Refer to the speed	10000
limit speed	13000

quality	0.22
model	*1982F/1924A/QVQ519
series	1900

Dimensions are mm

d	27.5
d1 ～	42
B	20.165
C	15.875
r1,2 min	2.5
r3,4 min	0.8
a	14

Shoulder gear and chamfer size mm

Da max	35
db min	36.5
Da min	49
Da max	52
Db min	54
Ca min	3
Cb min	3.5
ra max	2.5
rb max	0.8

Calculation coefficient

e	0.33
Y	1.8
Yo	1