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Products
>>
Standard & Plastic Pillow Blocks
>>
Mounting Blocks, Four-Bolt, Set Screw Type
Standard Duty | Four-Bolt
FLANGE MOUNTING BLOCKS-SET SCREW TYPE – INCH
STANDARD DUTY PILLOW BLOCKS
Ball Bearing Inserts
Set Screw Type
Ball Bearing Inserts
Locking Collar Type
Pillow Blocks
Set Screw Type
Pillow Blocks
Locking Collar Type
Mounting Blocks
Two-Bolt,
Set Screw Type
Mounting Blocks
Two-Bolt, Locking Collar Type
Mounting Blocks
Four-Bolt, Set Screw Type
Mounting Blocks
Four-Bolt, Locking Collar Type
Specs
Drawing
• Cast Iron Housing • Dual Seal Type
Part Number
Ød
Shaft
L
J
A2
A1
A
E
N
S
Bolt
Size
Weight
lb.
BBXBLK-UCF2018S
1/2
3
2-1/8
19/32
7/16
31/32
1-7/32
7/16
7/16
3/8
1.14
BBXBLK-UCF20210S
5/8
3
2-1/8
19/32
7/16
31/32
1-7/32
7/16
7/16
3/8
1.14
BBXBLK-UCF20311S
11/16
3
2-1/8
19/32
7/16
31/32
1-7/32
7/16
7/16
3/8
1.14
BBXBLK-UCF20412
3/4
3-3/8
2-17/32
19/32
7/16
1
1-5/16
7/16
1/2
3/8
1.41
BBXBLK-UCF20514
7/8
3-3/4
2-3/4
5/8
1/2
1-1/16
1-13/32
7/16
9/16
3/8
1.76
BBXBLK-UCF20515
15/16
3-3/4
2-3/4
5/8
1/2
1-1/16
1-13/32
7/16
9/16
3/8
1.76
BBXBLK-UCF20516
1
3-3/4
2-3/4
5/8
1/2
1-1/16
1-13/32
7/16
9/16
3/8
1.76
BBXBLK-UCF20618
1-1/8
4-1/4
3-9/32
23/32
1/2
1-7/32
1-19/32
7/16
5/8
3/8
2.35
BBXBLK-UCF20619
1-3/16
4-1/4
3-9/32
23/32
1/2
1-7/32
1-19/32
7/16
5/8
3/8
2.35
BBXBLK-UCF20620
1-1/4
4-1/4
3-9/32
23/32
1/2
1-7/32
1-19/32
7/16
5/8
3/8
2.35
BBXBLK-UCF20720
1-1/4
4-19/32
3-5/8
3/4
19/32
1-11/32
1-3/4
9/16
11/16
1/2
3.08
BBXBLK-UCF20721
1-5/16
4-19/32
3-5/8
3/4
19/32
1-11/32
1-3/4
9/16
11/16
1/2
3.08
BBXBLK-UCF20722
1-3/8
4-19/32
3-5/8
3/4
19/32
1-11/32
1-3/4
9/16
11/16
1/2
3.08
BBXBLK-UCF20723
1-7/16
4-19/32
3-5/8
3/4
19/32
1-11/32
1-3/4
9/16
11/16
1/2
3.08
BBXBLK-UCF20824
1-1/2
5-1/8
4-1/32
27/32
19/32
1-13/32
2-1/32
9/16
3/4
1/2
3.96
BBXBLK-UCF20825
1-9/16
5-1/8
4-1/32
27/32
19/32
1-13/32
2-1/32
9/16
3/4
1/2
3.96
BBXBLK-UCF20926
1-5/8
5-13/32
4-1/8
7/8
5/8
1-1/2
2-1/16
5/8
3/4
9/16
4.85
BBXBLK-UCF20927
1-11/16
5-13/32
4-1/8
7/8
5/8
1-1/2
2-1/16
5/8
3/4
9/16
4.85
BBXBLK-UCF20928
1-3/4
5-13/32
4-1/8
7/8
5/8
1-1/2
2-1/16
5/8
3/4
9/16
4.85
BBXBLK-UCF21030
1-7/8
5-5/8
4-3/8
7/8
5/8
1-9/16
2-5/32
23/32
3/4
5/8
5.29
BBXBLK-UCF21031
1-15/16
5-5/8
4-3/8
7/8
5/8
1-9/16
2-5/32
23/32
3/4
5/8
5.29
BBXBLK-UCF21132
2
6-3/8
5-1/8
1
23/32
1-11/16
2-5/16
23/32
7/8
5/8
7.71
BBXBLK-UCF21134
2-1/8
6-3/8
5-1/8
1
23/32
1-11/16
2-5/16
23/32
7/8
5/8
7.71
BBXBLK-UCF21135
2-3/16
6-3/8
5-1/8
1
23/32
1-11/16
2-5/16
23/32
7/8
5/8
7.71
BBXBLK-UCF21236
2-1/4
6-29/32
5-5/8
1-5/32
23/32
1-29/32
2-23/32
23/32
1
5/8
9.25
BBXBLK-UCF21238
2-3/8
6-29/32
5-5/8
1-5/32
23/32
1-29/32
2-23/32
23/32
1
5/8
9.25
BBXBLK-UCF21239
2-7/16
6-29/32
5-5/8
1-5/32
23/32
1-29/32
2-23/32
23/32
1
5/8
9.25
BBXBLK-UCF21340
2-1/2
7-3/8
5-7/8
1-3/16
7/8
1-31/32
2-3/4
23/32
1
5/8
11.68
BBXBLK-UCF21444
2-3/4
7-5/8
6
1-7/32
7/8
2-1/8
2-31/32
23/32
1-3/16
5/8
13.00
BBXBLK-UCF21547
2-15/16
7-7/8
6-1/4
1-11/32
7/8
2-7/32
3-3/32
23/32
1-5/16
5/8
13.88
BBXBLK-UCF21548
3
7-7/8
6-1/4
1-11/32
7/8
2-7/32
3-3/32
23/32
1-5/16
5/8
13.88
BBXBLK-UCF21752
3-1/4
8-21/32
6-29/32
1-13/32
15/16
2-15/32
3-7/16
29/32
1-11/32
3/4
19.62
BBXBLK-UCF21856
3-1/2
9-1/4
7-3/8
1-9/16
1
2-11/16
3-25/32
29/32
1-9/16
3/4
25.52
197