Sealmaster USRB5000A Series Data Sheet

Performance Mounted Spherical Roller Bearings

®

Rolling Elements: Spherical Roller

45°

J

Housing: Cast Iron Two Bolt Pillow

Block

Self Alignment: +/- 2 Degrees

Lock: Adapter

H

L

A

G

Seal: Felt

Optional Seal: Double Lip Contact

Temperature: -20° to 220° F

C (MIN)

C (MAX)

B

BOLT SIZE

D

M

USRB5000A Series Two-Bolt Base Pillow Blocks - Adapter Mount

Bore

Diameter

inch

1 1/8 USRB5000A-102

1 3/16 USRB5000A-103

1 1/4 USRB5000A-104

1 7/16

1 1/2

1 11/16 USRB5000A-111 22689 2 1/8 7 3/8 5 3/16 5 13/16 2 3/16 1 5/16 4 1/4 3 29/64 2 31/32 3 3/8

1 3/4 USRB5000A-112 100921 54.0 187.3 131.8 147.6 55.6 33.3 108.0 87.7 75.4 85.7 3.77

1 15/16 USRB5000A-115 23520 2 1/4 8 3/8 5 15/16 6 9/16 2 3/16 1 3/8 4 9/16 3 1/2 3 11/64 3 13/32

2 USRB5000A-200 104617 57.2 212.7 150.8 166.7 55.6 34.9 115.9 88.9 80.6 86.5 4.58

2 3/16 USRB5000A-203

2 7/16 USRB5000A-207 44691 2 3/4 9 1/4 6 13/16 7 7/16 2 11/16 1 3/4 5 11/16 4 5/16 3 63/64 4 7/32

2 1/2 USRB5000A-208 198786 69.9 235.0 173.0 188.9 68.3 44.5 144.5 109.5 101.2 107.2 7.86

2 11/16 USRB5000A-211

2 3/4 USRB5000A-212 47447 3 1/4 10 7/16 7 13/16 8 7/16 2 13/16 2 1/4 6 7/16 4 31/64 4 25/64 4 3/8 23.8

2 15/16 USRB5000A-215 211044 82.6 265.1 198.4 214.3 71.4 57.2 163.5 113.9 111. 5 111.1 10.82

3 USRB5000A-300

3 3/16 USRB5000A-303

3 7/16 USRB5000A-307

3 1/2 USRB5000A-308

3 11/16 USRB5000A-311

3 15/16 USRB5000A-315

4 USRB5000A-400

*For expansion bearings, this dimension can increase by the corresponding value in table VIII on page I-69.
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.

Part No.

USRB5000A-107

USRB5000A-108

Basic

Dynamic

Rating

lb/N

20368

90597

20368

90597

28087 2 1/2 8 7/8 6 9/16 7 1/16 2 7/16 1 5/8 5 3 7/8 3 7/16 3 27/32

124931 63.5 225.4 166.7 179.4 61.9 41.3 127.0 98.4 87.3 97.6 5.53

72640

323103

96050

427230

A B

1 3/4

6 5/16

44.5

160.3

1 7/8

47.6

3 3/4

95.313330.2

4 1/8

104.8

6 7/8

174.6

14 1/4

362.0

C

Min. Max.

4 1/2

114.35 127.0

4 11/16

119.1

235.0

254.0

9 1/4

10

5 5/16

134.9

10 3/4

273.1

11 3/4

298.5

Dimensions inch / mm

D G H J L M *

2 3/16

2 3/16

3 3/16

3 9/16

55.6

55.6

81.0

90.5

1 1/16

27.0

1 3/16

30.2

2 1/4

57.2

2 1/2

63.5

3 3/4

95.3

3 7/8

98.4

7 1/2

190.5

8 7/16

214.3

3 11/32

84.9

3 11/32

84.9

5 35/64

140.9

5 15/16

150.8

2 47/64

69.5

2 47/64

69.5

5 15/32

138.9

5 13/16

147.6

3 11/32

84.9

3 11/32

84.9

5 21/64

135.3

5 23/32

145.3

Bolt
Size

3/8

1/2

1/2

5/8

5/8

5/8

3/4

7/8

1

Bearings

Mtd. Spherical

Unit Wt.

lb/kg

6.9

3.12

6.9

3.12

8.3

10.1

12.2

17.3

39.1

17.76

50.6

23.01

Bearing Selection

Page H-3

Nomenclature Aid

Page H-6

Features & Benets

Page H-7

Technical Engineering

Page I-47

H-10