BM Series Simple Angular Bearing Mounts

• R-10, 11, 15, 16

• 1/2-10

• R-2, 20, 21, 22, 23
• 5/8-8

BM-10

3.000

1.875

1.000

.375

1.125

2.250

.672

1.344

.281 (4x)

.406 Thru
.625 C'Bore
.875 Deep

CAD

• R-1, 30, 31, 32, 30A
• 5/8-10, 3/4-5, 3/4-6

BM-12

3.000

1.875

1.000

.375

1.125

2.250

.672

1.344

.281 (4x)

.406 Thru
.625 C'Bore
.875 Deep

CAD

• R-4, 34, 35, 36, 37, 38
• 3/4-10, 7/8-5, 7/8-6, 1-4, 1-5

BM-15

3.500

2.125

1.125

.375

1.375

1.250

2.500

.813

1.625

.281 (4x)

.406 Thru
.625 C'Bore
1.000 Deep

CAD

• R-6, 40, 40A, 40B, 40RF, 41, 41LF, 42, 43, 44, 48
• 1-10, 1 1/8-5, 1 1/4-4

BM-20

4.500

2.750

1.438

.500

1.750

1.625

3.250

.938

1.875

.469 (4x)

.656 Thru
1.000 C'Bore
1.312 Deep

CAD

• R-45, 46, 47, 55, 56, 57, 58
• 1 1/2-4

BM-25

6.500

3.690

1.875

.875

2.000

2.375

4.750

.970

1.940

.656 (4x)

.906 Thru
1.375 C'Bore
1.750 Deep

CAD

• R-50, 50A, 51A, 53, 54, 54A
• 1 3/4-4

BM-30

6.500

3.690

1.875

.875

2.000

2.375

4.750

1.156

2.312

.656 (4x)

.906 Thru
1.375 C'Bore
2.060 Deep

CAD

• R-61, 62

CAD

• R-60, 60A, 63

BM-45

8.50

5.625

2.813

Consult Factory

CAD

• R-75

• R-70, 71, 74

• R-80

• R-90, 91

BM Series - Simple Angular Bearing Mounts

The BM series bearing mounts are SIMPLE supports that utilize a set of angular contact ball bearings mounted back to back. These bearing mounts are designed to support radial and axial load components of force. Consult engineering for application assistance if required.

1.) The BM series bearing mounts are universally precision machined to allow either foot or face mounting.

2.) The BM series bearing mounts are to be considered as "SIMPLE" support for column loading and critical speed calculations.

NOTE: Dimensions shown for screws without corresponding bearing mounts are for reference only.


• BALL ScrewsScrew Number • ACME Screws	Part Number	A	B	C	D	E	F	G	H	I	J	K	CAD Drawing
• R-10, 11, 15, 16
• 1/2-10
• R-2, 20, 21, 22, 23 • 5/8-8	BM-10	3.000	1.875	1.000	.375	1.125	1.125	2.250	.672	1.344	.281 (4x)	.406 Thru .625 C'Bore .875 Deep	CAD
• R-1, 30, 31, 32, 30A • 5/8-10, 3/4-5, 3/4-6	BM-12	3.000	1.875	1.000	.375	1.125	1.125	2.250	.672	1.344	.281 (4x)	.406 Thru .625 C'Bore .875 Deep	CAD
• R-4, 34, 35, 36, 37, 38 • 3/4-10, 7/8-5, 7/8-6, 1-4, 1-5	BM-15	3.500	2.125	1.125	.375	1.375	1.250	2.500	.813	1.625	.281 (4x)	.406 Thru .625 C'Bore 1.000 Deep	CAD
• R-6, 40, 40A, 40B, 40RF, 41, 41LF, 42, 43, 44, 48 • 1-10, 1 1/8-5, 1 1/4-4	BM-20	4.500	2.750	1.438	.500	1.750	1.625	3.250	.938	1.875	.469 (4x)	.656 Thru 1.000 C'Bore 1.312 Deep	CAD
• R-45, 46, 47, 55, 56, 57, 58 • 1 1/2-4	BM-25	6.500	3.690	1.875	.875	2.000	2.375	4.750	.970	1.940	.656 (4x)	.906 Thru 1.375 C'Bore 1.750 Deep	CAD
• R-50, 50A, 51A, 53, 54, 54A • 1 3/4-4	BM-30	6.500	3.690	1.875	.875	2.000	2.375	4.750	1.156	2.312	.656 (4x)	.906 Thru 1.375 C'Bore 2.060 Deep	CAD
• R-61, 62													CAD
• R-60, 60A, 63	BM-45	8.50	5.625	2.813								Consult Factory	CAD
• R-75
• R-70, 71, 74
• R-80
• R-90, 91
BM Series - Simple Angular Bearing Mounts The BM series bearing mounts are SIMPLE supports that utilize a set of angular contact ball bearings mounted back to back. These bearing mounts are designed to support radial and axial load components of force. Consult engineering for application assistance if required. 1.) The BM series bearing mounts are universally precision machined to allow either foot or face mounting. 2.) The BM series bearing mounts are to be considered as "SIMPLE" support for column loading and critical speed calculations. NOTE: Dimensions shown for screws without corresponding bearing mounts are for reference only.