Timken - Ball Bearing Housed Units

BALL BEARING HOUSED UNITS
WIDE-INNER-RING BALL BEARINGS • HEAVY SERIES • SMN-S
SMN-S Heavy Series
SMN-S SERIES
• The SMN-S heavy-series construction permits its inner assembly
to swivel in the outer aligning ring.
• Unrestricted self-alignment is achieved, allowing the inner ring
to become square and true with the shaft and assembly.
• The external S-ring is uniquely ground and closely matched
to its respective outer-bearing ring so that the S-ring of one bearing
will not fit the outer ring of another bearing.
• This bearing has the basic 300-series load capacities.
• The bearings are not prelubricated.
Suggested shaft tolerances:
1 3 ⁄16 in. – 1 15 ⁄16 in., nominal to -0.013 mm, -0.0005 in.;
2 in. – 3 15 ⁄16 in., nominal to -0.025 mm, -0.0010 in.
Greater than 3 15 ⁄16 in., consult your Timken engineer.
F
d
S
C
B
G
L
B 2
d 1 D
To order, specify bearing number followed by "+ COL".
Example: SMN103KS + COL.
B 1
Bearing
No.
Collar
No.
Basic
Outer-
Ring
Size
Shaft
Dia.
O.D.
Ring Widths
Inner
Outer
Brg. and
Collar Wt.
Static
Load
Rating
Extended
Dynamic
Load
Rating
SMN103KS SN103K 306 1 3 ⁄16
SMN107KS SN107K 307 1 7 ⁄16
SMN108KS SN108KT 308 1 1 ⁄2
SMN111KS SN111K 309 1 11 ⁄16
SMN115KS SN115K 310 1 15 ⁄16
SMN203KS SN203K 311 2 3 ⁄16
SMN207KS SN207K 312 2 7 ⁄16
SMN211KS SO211K 314 2 11 ⁄16
SMN215KS SN215K 315 2 15 ⁄16
SMN303KS SN303K 316 3 3 ⁄16
SMN307KS SN307K 318 3 7 ⁄16
SMO311WS-BR SO311K 319 3 11 ⁄16
SMN315KS SN315K 320 3 15 ⁄16
SMN407WS-BR (1) SN407K 322 4 7 ⁄16
SMN415WS-BR (1) SN415K 326 4 15 ⁄16
d D B C S G F L d 1 B 2 B 1 C o C E
mm mm mm mm mm mm mm mm mm mm kg
N N
in.
in. in. in. in. in. in. in. in. in. in.
lbs. lbs. lbs.
80
3.1496
88
3.4646
100
3.9370
110
4.3307
120
4.7244
130
5.1181
145
5.7087
165
6.4961
175
6.8898
190
7.4803
210
8.2677
220
8.6608
235
9.2520
265
10.4331
300
11.8110
36.51
1 7 ⁄16
38.10
1 1 ⁄2
41.28
1 5 ⁄8
42.86
1 11 ⁄16
49.21
1 15 ⁄16
55.56
2 3 ⁄16
61.91
2 7 ⁄16
68.26
2 11 ⁄16
74.61
2 15 ⁄16
80.96
3 3 ⁄16
87.31
3 7 ⁄16
93.66
3 11 ⁄16
100.01
3 15 ⁄16
106.36
4 3 ⁄16
115.89
4 9 ⁄16
19
0.7480
21
0.8268
23
0.9055
25
0.9843
27
1.0630
29
1.1417
31
1.2205
35
1.3780
37
1.4567
39
1.5354
43
1.6929
45
1.7680
47
1.8504
50
1.9685
59
2.3228
17.50
11⁄16
18.30
23⁄32
19.80
25⁄32
19.80
25⁄32
24.60
31⁄32
27.80
1 3 ⁄32
31.00
1 7 ⁄32
34.10
1 11 ⁄32
37.30
1 15 ⁄32
40.50
1 19 ⁄32
43.70
1 23 ⁄32
38.89
1 17 ⁄32
50.00
1 31 ⁄32
49.20
1 15 ⁄16
54.00
2 1 ⁄8
19.10
3⁄4
19.80
25⁄32
21.40
27⁄32
23.00
29⁄32
24.60
31⁄32
27.80
1 3 ⁄32
31.00
1 7 ⁄32
34.10
1 11 ⁄32
37.30
1 15 ⁄32
40.50
1 19 ⁄32
43.70
1 23 ⁄32
54.77
2 5 ⁄32
50.00
1 31 ⁄32
57.20
2 1 ⁄4
61.90
2 7 ⁄16
(1)
For applications where thrust load exceeds 60 percent of radial load, consult your Timken engineer.
NOTE: Bore tolerance: 15 ⁄16 in. – 2 3 ⁄16 in., nominal to +0.013 mm, +0.0005 in.
2 1 ⁄4 in. – 3 3 ⁄16 in., nominal to +0.015 mm, +0.0006 in.
3 1 ⁄4 in. – 4 3 ⁄16 in., nominal to +0.018 mm, +0.0007 in.
4 7 ⁄16 in. – 4 15 ⁄16 in., nominal to +0.020 mm, +0.0008 in.
43.23
1.702
48.95
1.927
55.50
2.185
62.05
2.443
68.78
2.708
75.01
2.953
81.53
3.210
94.70
3.731
100.38
3.952
106.91
4.209
120.12
4.729
126.53
4.982
134.77
5.306
150.37
5.920
176.56
6.951
4.0
5⁄32
4.0
5⁄32
4.8
3⁄16
4.8
3⁄16
4.8
3⁄16
4.8
3⁄16
6.4
1⁄4
6.4
1⁄4
6.4
1⁄4
6.4
1⁄4
7.9
5⁄16
7.94
5⁄16
7.9
5⁄16
7.9
5⁄16
7.9
5⁄16
49.20
1 15 ⁄16
55.60
2 3 ⁄16
63.50
2 1 ⁄2
69.90
2 3 ⁄4
76.20
3
82.60
3 1 ⁄4
88.90
3 1 ⁄2
101.60
4
112.70
4 7 ⁄16
119.10
4 11 ⁄16
133.40
5 1 ⁄4
139.70
5 1 ⁄2
146.00
5 3 ⁄4
168.30
6 1 ⁄2
206.40
8 1 ⁄8
17.50
11⁄16
17.50
11⁄16
20.60
13⁄16
20.60
13⁄16
22.20
7⁄8
22.20
7⁄8
23.80
15⁄16
27.00
1 1 ⁄16
31.80
1 1 ⁄4
31.80
1 1 ⁄4
36.50
1 7 ⁄16
36.51
1 7 ⁄16
36.50
1 7 ⁄16
42.90
1 11 ⁄16
42.90
1 11 ⁄16
50.00
1 31 ⁄32
51.60
2 1 ⁄32
57.20
2 1 ⁄4
58.70
2 5 ⁄16
66.70
2 5 ⁄8
73.00
2 7 ⁄8
79.40
3 1 ⁄8
92.10
3 5 ⁄8
100.00
3 15 ⁄16
106.40
4 3 ⁄16
115.90
4 9 ⁄16
122.24
4 13 ⁄16
128.60
5 1 ⁄16
141.30
5 9 ⁄16
150.80
5 15 ⁄16
0.654 1.44
15600
3550
0.849 1.87
21200
4750
1.344 2.96
26100
5850
1.693 3.73
31600
7100
2.147 4.73
37900
8500
2.769 6.10
43600
9800
3.405 7.50
51700
11600
5.185 11.42
66800
15000
6.456 14.22
75700
17000
8.040 17.71
86000
19300
1.790 25.97 106900
24000
16.300 33.00 166000
37500
15.822 34.85 140300
31500
21.465 47.28 245000
55000
33.773 74.39 327400
73500
33500
7550
40500
9150
49000
11000
58500
13200
68000
15300
80000
18000
90000
20400
116000
26000
125000
28500
137000
30500
156000
35500
224000
50000
193000
43000
280000
63000
345000
78000
A-62 TIMKEN ® HOUSED UNIT CATALOG • Download 3D Models and 2D Drawings at cad.timken.com