Three Bolt Flanges for Standard Ball Bearing Units

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The spherical inside surface of each pair of flanges mates with the spherical outer surfaces of the ball bearing  to provide self-alignment in any direction. The three-bolt 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.

Three Bolt Flange
Three Bolt Flange (Top View)
Three Bolt Flange (Side View)
Part No.
Shaft Size
A
Flange
Dia.
B
BHC
C
Bearing
Dia.
D
Min.Frame
Opening
E
Hole
F
Shoulder
Height
G
Thickness
Bolt Size
40MM-3
1/2, 9/16, 5/8
3-3/16
2-1/2
40MM
1-15/16
9/32
9/32
.075
1/4
47MM-3
3/4
3-9/16
2-13/16
47MM
2-3/16
11/32
5/16
.083
5/16
47MM-3B
3/4
3-9/16
2-13/16
47MM
2-3/16
21/64 Round
5/16
.083
5/16
52MM-3
13/16, 7/8, 15/16, 1
3-3/4
3
52MM
2-3/8
11/32
11/32
.083
5/16
52MM-3B
13/16, 7/8, 15/16, 1
3-3/4
3
52MM
2-3/8
21/64 Round
11/32
.083
5/16
52MM-3E
13/16, 7/8, 15/16, 1
3-3/4
3
52MM
2-3/8
11/32
3/8
.104
5/16
52MM-3-1
13/16, 7/8, 15/16, 1
3-3/4
3
52MM
2-3/8
11/32
25/64
.134
5/16
52MM-3H
13/16, 7/8, 15/16, 1
3-3/4
3
52MM
2-3/8
13/32 Round
11/32
.083
5/16
62MM-3
1-1/16, 1-1/8, 1-3/16, 1-1/4
4-7/16
3-9/16
62MM
2-13/16
13/32
11/32
.104
3/8
62MM-3-SS
 1-1/16, 1-1/8, 1-3/16, 1-1/4
Same as 62MM-3 above except made form Grade 304 Stainless Steel
62MM-3B
1-1/16, 1-1/8, 1-3/16, 1-1/4
4-7/16
3-9/16
62MM
2-13/16
13/32
13/32
.149
3/8
62MM-3GP-3
1-1/16, 1-1/8, 1-3/16, 1-1/4
4-7/16
3-9/16
62MM
2-13/16
13/32
25/64
.134
3/8
72MM-3
1-1/4, 1-5/16, 1-3/8, 1-7/16
4-13/16
3-15/16
72MM
3-3/16
13/32
3/8
.104
3/8
72MM-3GP
1-1/4, 1-5/16, 1-3/8, 1-7/16
4-13/16
3-15/16
72MM
3-3/16
13/32
7/16
.134
3/8
72MM-3C
1-1/4, 1-5/16, 1-3/8, 1-7/16
4-13/16
3-15/16
72MM
3-3/16
13/32
13/32
.149
3/8

When ordering please specify whether you would like your parts unplated – R, standard zinc plated -ZP, or plated with yellow dichromate -YZP.

Visit our Flanges page for more options