Timken - Bearings for Industrial Applications

TECHNICAL SUPPORT
ADAPTERS AND MOUNTING DESIGNS
Mounting Dimensions for Narrow Adapter
1. Thrust lugs could be welded or machined into opening.
2. Class G and K adapter do not require thrust lugs.
3. Provide shim to give 0.25 mm to 0.38 mm (.010 in. to .015 in.) clearance
between tie plate and cup O.D. If cup turning in the adapter
should occur a resilient pad may be used between the tie plate
and the cup O.D. to lightly hold the cup from turning.
Tie Plate
Shims
K j
Without
Adapter
45º
K c
Lower
Thrust Lugs
C a
With K f
K Adapter
Kd
g
Bearing Class
and Narrow Adapter
Part Number
K c
1mm
+1/32 in.
-0
K d
1mm
+1/32 in.
-0
K f K g K h
(1) K j K k
(1)
Fixed
C a
1mm
-1/32 in.
+0 C (1) b C (1) c
Float
B (4 1 ⁄4 x 8) K86888
mm
in.
169.9
6.69
mm
in.
125.4
4.94
mm
in.
36.5
1.44
mm
in.
101.6
4.00
mm
in.
85.7
3.38
mm
in.
82.6
3.25
mm
in.
124.6
4.91
mm
in.
68.3
2.69
mm
in.
60.3
2.38
mm
in.
68.3
2.69
mm
in.
117.5
4.62
D
C (5 x 9) K85581
200.0
7.88
144.5
5.69
42.9
1.69
117.5
4.62
100.8
3.97
97.6
3.84
143.7
5.66
74.6
2.94
66.7
2.62
74.6
2.94
146.0
5.75
D (5 1 ⁄2 x 10) K85530
212.7
8.38
157.2
6.19
46.0
1.81
123.8
4.88
107.2
4.22
104.0
4.09
156.4
6.16
74.6
2.94
66.7
2.62
74.6
2.94
155.6
6.12
E (6 x 11) K85073
225.4
8.88
182.6
7.19
58.7
2.31
136.5
5.38
113.5
4.47
110.3
4.34
181.8
7.16
96.8
3.81
88.9
3.50
96.8
3.81
166.7
6.56
F (6 1 ⁄2 x 12) K85524
257.2
10.12
195.3
7.69
60.3
2.38
152.4
6.00
129.4
5.09
126.2
4.97
194.5
7.66
96.8
3.81
88.9
3.50
96.8
3.81
187.3
7.38
G (7 x 12) G (7 x 14)
K83138
281.0
11.06
– –
168.3
6.62
141.3
5.56
138.1
5.44
279.4
11.00
181.0
7.12
171.4
6.75
181.0
7.12
189.7
7.47
K (8) K522803
306.4
12.06
– –
196.8
7.75
154.0
6.06
150.8
5.94
304.8
12.00
142.9
5.62
133.4
5.25
142.9
5.62
142.9
5.62
(1) See page 34 for K h , K k , C b and C c dimensions.
AP TM BEARINGS FOR INDUSTRIAL APPLICATIONS 33