Sealmaster USRB5500A Series Data Sheet
Performance Mounted Spherical Roller Bearings
®
20°
Rolling Elements: Spherical Roller
Housing: Cast Iron Two and Four Bolt
Pillow Block
Self Alignment: +/- 2 Degrees
Lock: Adapter
Seal: Felt
Optional Seal: Double Lip Contact
C(MIN)
C(MAX)
B
H
A
G
J
L
D
M
Temperature: -20° to 220° F
USRB5500A Series Two and Four-Bolt Base Pillow Blocks - Adapter Mount, SAF Mounting Dimensions
Bore
Diameter
Part No.
inch 2 Bolt 4 Bolt
Basic
Dynamic
Rating
lb/N
A B
C
Min. Max.
Dimensions inch / mm
D E G H J L M *
J
L
Four Bolt BaseTwo Bolt Base
Bolt Size
2
Bolt4 Bolt
E
D
M
Unit Wt.
lb/kg
2
4
Bolt
Bolt
Bearings
Mtd. Spherical
13/16
4 3/8
3 11/32
2 47/64
69.5
11 7/64
282.2
3 35/64
90.1
11 17/32
292.9
1/2 -
5/8 -
5/8 1/2
3/4 5/8
7/8 3/4
- 3/4 -
- 7/8 -
- 1 -
- 1 -
- 1 -
- 1 -
- 1 1/4 -
- 1 1/2 -
1 7/16
USRB5509A-107
1 1/2
USRB5509A-108
1 15/16 USRB5511A-115
2 USRB5511A-200 104617 69.9 244.6 187.3 209.6 69.9 23.8 127.8 88.9 80.6 99.2 7.36
-
20368
90597
2 1/4
57.2
8 1/4
209.6
6 1/4
158.87 177.8
2 3/16
55.6
-
20.6
111. 1
84.9
23520 2 3/4 9 5/8 7 3/8 8 1/4 2 3/4 - 15/16 5 1/32 3 1/2 3 11/64 3 29/32
2 7/16 USRB5515A-207 USRBF5515A-207 44691 3 1/4 11 1/4 8 5/8 9 5/8 3 1/8 1 7/8 1 1/8 6 1/8 4 5/16 3 7/16 4 23/32
2 1/2 USRB5515A-208 USRBF5515A-208 198786 82.6 285.8 219.1 244.5 79.4 47.6 28.6 155.6 109.5 87.3 119.9 12.04 11.92
2 15/16 USRB5517A-215 USRBF5517A-215 47447 3 3/4 13 9 7/8 11 3 1/2 2 1/8 1 1/4 7 1/8 4 31/64 4 25/64 5 1/32
3 USRB5517A-300 USRBF5517A-300 211044 95.3 330.2 250.8 279.4 88.9 54.0 31.8 181.0 113.9 111 .5 127.8 17.44 17.26
3 7/16 USRB5520A-307 USRBF5520A-307 72640 4 1/2 15 1/4 11 5/8 13 1/8 4 3/8 2 3/8 1 3/4 9 5 35/64 5 15/32 6 15/64
3 1/2 USRB5520A-308 USRBF5520A-308 323103 114.3 387.4 295.3 333.4 111 .1 60.3 44.5 228.6 140.9 138.9 158.4 33.37 32.92
3 15/16
4 USRB5522A-400 427230 125.4 419.1 319.9 368.3 120.7 69.9 50.8 250.8 150.8 147.64 168.7 40.23
4 7/16
4 1/2 USRB5526A-408 496117 152.4 466.7 368.3 406.4 130.2 82.6 60.3 293.7 163.1 161.1 180.2 57.89
4 15/16
5
-
-
-
5 7/16 - USRB5532A-507
5 15/16 - USRB5534A-515
6 7/16
6 1/2
6 15/16
7 USRB5538A-700 1486651 200.0 711.2 549.3 619.1 190.5 114.3 79.4 420.7 246.9 246.1 262.7 184.09
-
-
7 1/2 USRB5544A-708
7 15/16 - USRB5544A-715
8 USRB5544A-800
*For expansion bearings, this dimension can decrease by the corresponding value in table VIII on page I-69.
USRB5522A-315 96050 4 15/16 16 1/2 12 19/32 14 1/2 4 3/4 2 3/4 2 9 7/8 5 15/16 5 13/16 6 41/64
USRB5526A-407 111537 6 18 3/8 14 1/2 16 5 1/8 3 1/4 2 3/8 11 9/16 6 27/64 6 11/32 7 3/32
USRB5528A-415 158816 6 19 11/16 15 5/8 17 3/8 5 7/8 3 3/8 2 3/8 12 7 1/8 7 13/64 7 53/64
USRB5528A-500 706414 152.4 500.1 396.9 441.3 149.2 85.7 60.3 304.8 181.0 183.0 198.8 72.41
196682 6 11/16 22 17 3/8 19 1/4 6 1/4 3 3/4 2 5/8 13 1/2 7 7/8 7 47/64 8 19/32
874842 169.9 558.8 441.3 489.0 158.8 95.3 66.7 342.9 200.0 196.5 218.3 97.27
261346 7 1/16 24 3/4 19 3/8 21 5/8 6 3/4 4 1/4 2 3/4 14 15/16 8 11/16 8 1/2 9 1/4
1162467 179.4 628.7 492.1 549.3 171.5 108.0 69.9 379.4 220.7 215.9 235.0 130.45
USRB5536A-607 334229 7 1/2 26 3/4 20 7/8 23 5/8 7 1/8 4 5/8 3 15 15/16 9 45/64 9 11/16 10 5/32
USRB5536A-608 1486651 190.5 679.5 530.2 600.1 181.0 1
17.5 76.2 404.8 246.5 246.1 258.0 162.27
USRB5538A-615 334229 7 7/8 28 21 5/8 24 3/8 7 1/2 4 1/2 3 1/8 16 9/16 9 23/32 9 11/16 10 11/32
363818
1618262
9 1/2
241.3
32 3/4
831.9
24 3/4
628.7
27 7/8
708.0
8 3/4
222.3
5 1/4
133.4
3 3/4
95.3
19 5/8
498.5
10 9/16
268.3
Bore diameters up to 3” - grease tting location at 12:00.
One expansion unit is to be used in conjunction with one non-expansion unit for applications using an adapter lock unit
Failure to utilize one expansion and one non-expansion unit is likely to result in reduced bearing performance.
10.5
4.77
16.2
26.5 26.2
38.4 38.0
73.4 72.4
88.5
127.4
159.3
214.0
287.0
357.0
405.0
656.0
298.18
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-
Bearing Selection
Page H-3
Nomenclature Aid
Page H-6
Features & Benets
Page H-7
Technical Engineering
Page I-47
H-14
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