Manitou Mfg. Co. Three and Four Bolt Flanges, Ball Bearing Housings, Stamped Flanges, Standard Ball Bearing Flanges

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Three-Bolt and Four-Bolt Flanges for Standard Ball Bearing Units

The flanges listed are standard and are dimensionally the same as supplied by the leading ball bearing manufacturers.

Two flanges are required to house a standard ball bearing unit, but Manitou sells them individually. The spherical inside surface of each pair of flanges mates with the spherical outer surfaces of the ball bearing rings to provide self-alignment in any direction.

three and four bolt flanges for ball bearings

Manitou
Stamping
Number

Shaft
Size

A Minimum Frame Opening

B Flange Diameter

C Flange Shoulder Width

G Stock Thickness

Bolt Size

D Bolt Hole Corcle Diameter

Hole Width

Fafnir
Equiv.
Part

SKF
Equiv.
Part

MRC
Equiv.

Equiv.
New Departure

35MM-3

1/2 & 5/8

1-5/8

2-7/8

7/32

.053

1/4

2-1/8

9/32

40MM-3

1/2 & 5/8

1-15/16

3-3/16

9/32

.075

1/4

2 1/2

9/32

40MS-C2

F-40

47MM-3

3/4

2-3/16

3-9/16

5/16

.083

5/16

2-13/16

11/32

47MS-C2

F-47

47MS-3

FL47

47MM-3A

3/4

2-3/16

3-9/16

5/16

.083

NO BOLT HOLES

FL47A

47MM-3B

3/4

2-3/16

3-9/16

5/16

.083

5/16

2-13/16

21/64

21/64 ROUND BOLT HOLESC

FL47B

52MM-3

7/8, 15/16 & 1

2-3/8

3 3/4

11/32

.083

5/16

11/32

52MS-C2

F-52

52MS-3

FL52

52MM-3A

7/8, 15/16 & 1

2-3/8

3 3/4

11/32

.083

NO BOLT HOLES

FL52A

52MM-3B

7/8, 15/16 & 1

2-3/8

3 3/4

11/32

.083

5/16

21/64 ROUND BOLT HOLES

FL52B

52MM-3E

7/8, 15/16 & 1

2-3/8

3 3/4

3/8

.104

5/16

11/32

52MS-2

.104 THICK

FL52E

52MM-3-1

7/8, 15/16 & 1

2-3/8

3 3/4

25/64

.134

5/16

11/32

.134 THICK FOR HEAVY THRUST

52MM-3F

7/8, 15/16 & 1

2-3/8

3 3/4

11/32

.083

5/16

11/32

52MM-3 plus 3–.328 holes on 2.810 pitch circle

FL52F

52MM-3H

7/8, 15/16 & 1

2-3/8

3 3/4

11/32

.083

5/16

13/32

Has Round Bolt Holes

62MM-3

1-1/16, 1-1/8 1-3/16, 1-1/4

2-13/16

4-7/16

11/32

.104

3/8

3-9/16

13/32

62MS-C1

F-62

62MS-3

FL62

62MM-3A

1-1/16, 1-1/8 1-3/16, 1-1/4

2-13/16

4-7/16

11/32

.104

NO BOLT HOLES

FL62A

62MM-3B

1-1/16, 1-1/8 1-3/16, 1-1/4

2-13/16

4-7/16

11/32

.149

3/8

3-9/16

13/32

.149 THICKNESS FOR HEAVY THRUST LOAD

62MM-3C

1-1/16, 1-1/81-3/16, 1-1/4

2-13/16

4-7/16

25/64

.134

3/8

3-9/16

13/32

SAME AS OUR 62MM-3GP-3

62MM-3SP Special

1-1/16, 1-1/8 1-3/16, 1-1/4

2-13/16

4-7/16

11/32

.104

3/8

3-9/16

13/32

Made From 4" Strip to Reduce Cost

62MM-3-SS

Same as 62MM-3 above except made from 304 Stainless Steel

62MM-4

1-1/16, 1-1/8 1-3/16, 1-1/4

2-13/16

4-7/16

11/32

.104

3/8

3-9/16

13/32

62MS2

4 Bolt Holes

72MM-3

1-1/4, 1-5/16 1-3/8, 1-7/16

3-3/16

4-13/16

3/8

.104

3/8

3-15/16

13/32

72MS-C1

F-72

72MS-3

FL72

72MM-3B

1-1/4, 1-5/16 1-3/8, 1-7/16

3-3/16

4-13/16

7/16

.134

3/8

3-15/16

13/32

Same as Our 72MM-3GP

.134 Thick

72MM-4

1-1/4, 1-5/16 1-3/8, 1-7/16

3-3/16

4-13/16

3/8

.104

3/8

3-15/16

13/32

72MS5

4 Bolt Holes

72MM-4

1-1/4, 1-5/16 1-3/8, 1-7/16

3-3/16

4-13/16

13/32

.149

3/8

3-15/16

13/32

72MS3

.149 Thick–For Heavy Thrust Load

80MM-4

1-1/2, 1-9/16

3-9/16

5-13/16

13/32

.134

1/2

4-11/16

17/32

80MS

F-80

80MS

FL80

80MM-4SQ Square

1-1/2, 1-9/16

4-3/4" square, otherwise same as 80MM-4 above

80MM-4A

1-1/2, 1-9/16

3-9/16

5-13/16

13/32

.134

No Bolt Holes

FL80A

80MM-4B

1-1/2, 1-9/16

3-5/8

5-13/16

5/8

.149

1/2

4-11/16

17/32

80MS-4

Same as 80MM-4GP

85MM-4

1- 5/8, 1-11/16 1-3/4,

3-3/16

5- 7/8

7/16

.134

1/2

4- 3/4

17/32

85MS

F-85

85MS

FL85

85MM-4A

1- 5/8, 1-11/16 1-3/4,

3-3/16

5- 7/8

7/16

.134

No Bolt Holes

FL85A

85MM-4B

1- 5/8, 1-11/16 1-3/4,

3-13/16

5- 7/8

5/8

.149

1/2

4- 3/4

17/32

85MS4

.149 Thick for Heavy Thrust Load

Same as 85MM-4GP

85MM-4BSQ

1- 5/8, 1-11/16 1-3/4,

3-13/16

4-3/4 Square

7/16

.144

1/2

4- 3/4

17/32

.149 Thick for Heavy Thrust Load

85MM-4C

1- 5/8, 1-11/16 1-3/4,

3-13/16

5- 7/8

21/32

.179

1/2

4- 3/4

17/32

.179 Thick for Heavy Thrust Load

Same as 85MM-4GP-3

87F-MM-4

3-7/8

5- 3/4

21/32

.134

1/2

4- 3/4

17/32 & 37/64

87MS

FL87

90-MM-4

1-13/16, 1-7/8, 1-15/16

6-1/8

7/16

.149

1/2

17/32

90MS

F-90

90MS

FL90

90-MM-4B

1-13/16, 1-7/8, 1-15/16

6-1/8

7/16

.164

1/2

17/32

.164 Thick for Heavy Thrust Load

Same as our 90MM-4GP

90-MM-4B Square

1-13/16, 1-7/8, 1-15/16

5-1/8" square, otherwise same as 90MM-4B above.

90-MM-4C

1-13/16, 1-7/8, 1-15/16

6-1/8

21/32

.179

1/2

17/32

.179 Thick for Heavy Thrust Load

Same as our 90MM-4GP-3

100-MM-4

2-2-1/16, 2-1/8, 2-3/16

4-7/16

6- 9/16

15/32

.149

1/2

5- 7/16

17/32

100MS

FL100

100-MM-4B

2-2-1/16, 2-1/8, 2-3/16

4-7/16

6- 9/16

15/32

.164

1/2

5- 7/16

17/32

.164 Thick for Heavy Thrust Load

Same as our 100MM-4GP

100-MM-4-4

2-2-1/16, 2-1/8, 2-3/16

4-7/16

6- 9/16

11/16

.194

1/2

5- 7/16

17/32

.194 Thick for Heavy Thrust Load

Same as our 100MM-4GP-4

P.O. Box 10526 • White Bear Lake, MN 55110-0526 • Tel: 651-429-4285 • 1- 800-894-1509 • Fax: 651-429-5765 • Email: info@manitoumfg.com