Timken - Ball Bearing Housed Units

BALL BEARING HOUSED UNITS
ENGINEERING • MOUNTING
GRA-RR SERIES
C
D
C
D
*
*
When shafts are selected for use with wide-inner-ring ball
bearings, a minimum slip fit is desirable for the most satisfactory
mounting. Special shaft limits are required in certain cases and a
variety of standard fits can be used, including even a press fit. The
recommended values are in table A-14. For special requirements,
contact your Timken engineer.
B
B
A
A
*
SNAP *
SNAP WIRE WIRE GROOVE GROOVE DETAIL DETAIL
E RADIUS E RADIUS 40° 40°
F
H
F
H
G
G
GRA-RR GRA-RR new new
TABLE A-14. GRA-RR SERIES, RELUBRICATABLE
Housing Bore Shoulder Dia. Radius
Bearing
No.
Shaft
Dia.
Basic
Outer-Ring
Size
Stationary Housing
A (1) B C D H E F G
Max. Min. Max. Min.
in.
mm
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
GRA008RR 1⁄2
GRAE17RR 17
203
40.015
1.5754
40.000
1.5748
35.1
1.38
34.3
1.35
19.0
3⁄4
14.3
9⁄16
16.67
21 ⁄32
1.2
3⁄64
22.32
0.879
9.5
3⁄8
GRA012RR 3⁄4
GRAE20RR 20
204
47.015
1.8510
47.000
1.8504
40.9
1.61
40.6
1.60
20.6
13⁄16
15.9
5⁄8
17.07
43 ⁄64
1.2
3⁄64
25.6
1.008
10.3
13⁄32
GRA014RR 7⁄8
GRAE25RR 25
205
52.017
2.0479
51.999
2.0472
46.0
1.81
45.7
1.80
20.6
13⁄16
15.9
5⁄8
17.07
43 ⁄64
1.2
3⁄64
30.61
1.205
10.3
13⁄32
GRA101RR 1 1 ⁄16
GRAE30RR 30
206
62.017
2.4416
61.999
2.4409
56.1
2.21
54.9
2.16
23.8
15⁄16
19.0
3⁄4
20.24
51 ⁄64
1.2
3⁄64
37.29
1.468
11.9
15⁄32
GRA104RR 1 1 ⁄4
GRAE35RR 35
207
72.017
2.8353
71.999
2.8346
65.0
2.56
62.7
2.47
25.4
1
20.6
13⁄16
22.22
7⁄8
1.6
1⁄16
43.08
1.696
13.5
17⁄32
(1)
When the housing revolves in relation to the shaft, the housing bore dimensions shown on page 131 of the Timken Engineering Manual
(order no. 10424) should be used. Outer ring tolerances and housing fillet radii correspond to equivalent 200-series single-row radial bearings.
TIMKEN ® HOUSED UNIT CATALOG • Download 3D Models and 2D Drawings at cad.timken.com A-21