
Performance Mounted Spherical Roller Bearings
Rolling Elements: Spherical Roller
Bearings
Mtd. Spherical
Housing: Cast Iron Four Bolt Pillow
Block
Self Alignment: +/- 2 Degrees
Lock: Setscrew
Seal: Felt
Optional Seal: Double Lip Contact
45°
C (MIN)
C (MAX)
B
A
G
BOLT SIZE
H
J
L
L
E
D
M
Temperature: -20° to 220° F
USRBF5000 Series Four-Bolt Base Pillow Blocks - Collar Mount
Bore
Diameter
inch
2 7/16 USRBF5000-207 44691 2 3/4 9 1/4 6 7/8 7 5/8 3 1/4 1 3/4 1 3/4 5 11/16 3 3/8 4 3 11/16
2 1/2 USRBF5000-208 198786 69.9 235.0 174.6 193.7 82.6 44.5 44.5 144.5 85.7 101.6 93.7 8.00
2 11/16 USRBF5000-211
2 3/4 USRBF5000-212 47447 3 1/4 10 7/16 7 7/8 8 3/8 3 3/4 1 7/8 2 1/4 6 7/16 3 7/8 4 17/32 4 19/64 26.4
2 15/16 USRBF5000-215 211044 82.6 265.1 200.0 212.7 95.3 47.6 57.2 163.5 98.4 115.1 109.1 11.98
Part No.
Basic
Dynamic
Rating
lb/N
A B
C
Min. Max.
Dimensions inch / mm
D E G H J L M *
Bolt
Size
1/2
5/8
J
E
D
M
"Double Collar"
4 7/16” - 4 15/16”
Bore Diameter
Unit Wt.
lb/kg
17.6
3 USRBF5000-300
3 3/16 USRBF5000-303
3 7/16 USRBF5000-307
3 1/2 USRBF5000-308
3 11/16 USRBF5000-311
3 15/16 USRBF5000-315
4 USRBF5000-400
4 7/16 USRB5000-407 111537 4 3/4 16 1/16 13 14 4 5/8 2 1/2 2 3/4 9 3/8 6 3/4 6 1/2 5 1/2
4 1/2 USRB5000-408 496117 120.7 408.0 330.2 355.6 117.5 63.5 69.9 238.1 171.5 165.1 139.7 33.68
4 15/16 USRB5000-415
*For expansion bearings, this dimension can increase by the corresponding value in table VIII on page I-69.
Note: Bore diameters up to 4” available in single lock collar. Bore diameters 4 7/16” and up available in double lock collar.
72640
323103
96050
427230
158816 5 1/2 18 1/2 15 16 5 1/8 2 3/4 3 10 7/8 7 27/64 7 1/2 6 3/32
706414 139.7 469.9 381.0 406.4 130.2 69.9 76.2 276.2 188.5 190.5 154.8 51.18
3 3/4
95.3
4 1/4
108.0
13
330.2
15 1/4
387.411279.413330.2
9 1/4
235.0
10 3/4
273.1
3 7/8
98.42 50.8
4 1/2
2 1/4
114.3
57.2
2 1/4
57.2
2 5/8
66.7
7 1/2
190.5
8 9/16
217.5
4 15/32
4 15/16
5 5/16
113.5
134.9
125.46152.4
4 19/32
116.7
5 7/32
132.6
3/4
3/4
3/4
3/4
39.0
17.73
57.5
26.14
74.1
112.6
Metric dimensions for reference only.
Not all parts are available from stock. Please contact customer service for availability (800) 626-2120.
For more information on bearing capabilities outside of our standard offering, please contact Application Engineering (800) 626-2093.
H-11
Bearing Selection
Page H-3
Nomenclature Aid
Page H-6
Features & Benets
Page H-7
Technical Engineering
Page I-47