Standard-Duty Flange-Mounted Blocks, Two-Bolt with Locking Collar
INCH
- Specs
- Drawing

• Cast Iron Housing
• Dual Seal Type
• Eccentric Collar

Catalog Number | Ød Shaft |
H | J | L | A2 | A1 | A | E | N | S | F Min. |
Bolt Size |
Weight lb. |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
BBXBLK-HFL2018S | 1/2 | 3-29/32 | 3 | 2-1/4 | 19/32 | 7/16 | 31/32 | 1-1/2 | 7/16 | 9/16 | — | 3/8 | 1.06 |
BBXBLK-HFL20210S | 5/8 | 3-29/32 | 3 | 2-1/4 | 19/32 | 7/16 | 31/32 | 1-1/2 | 7/16 | 9/16 | — | 3/8 | 1.06 |
BBXBLK-HFL20311S | 11/16 | 3-29/32 | 3 | 2-1/4 | 19/32 | 7/16 | 31/32 | 1-1/2 | 7/16 | 9/16 | — | 3/8 | 1.06 |
BBXBLK-HFL20412 | 3/4 | 4-7/16 | 3-9/16 | 2-3/8 | 19/32 | 7/16 | 1 | 1-5/8 | 7/16 | 21/32 | 1-7/32 | 3/8 | 1.61 |
BBXBLK-HFL20514 | 7/8 | 5-1/8 | 3-29/32 | 2-11/16 | 5/8 | 1/2 | 1-1/16 | 1-11/16 | 7/16 | 11/16 | 1-13/32 | 3/8 | 1.76 |
BBXBLK-HFL20515 | 15/16 | 5-1/8 | 3-29/32 | 2-11/16 | 5/8 | 1/2 | 1-1/16 | 1-11/16 | 7/16 | 11/16 | 1-13/32 | 3/8 | 1.76 |
BBXBLK-HFL20516 | 1 | 5-1/8 | 3-29/32 | 2-11/16 | 5/8 | 1/2 | 1-1/16 | 1-11/16 | 7/16 | 11/16 | 1-13/32 | 3/8 | 1.76 |
BBXBLK-HFL20618 | 1-1/8 | 5-13/16 | 4-19/32 | 3-5/32 | 23/32 | 1/2 | 1-7/32 | 1-29/32 | 7/16 | 23/32 | 1-21/32 | 3/8 | 2.65 |
BBXBLK-HFL20619 | 1-3/16 | 5-13/16 | 4-19/32 | 3-5/32 | 23/32 | 1/2 | 1-7/32 | 1-29/32 | 7/16 | 23/32 | 1-21/32 | 3/8 | 2.65 |
BBXBLK-HFL20620 | 1-1/4 | 5-13/16 | 4-19/32 | 3-5/32 | 23/32 | 1/2 | 1-7/32 | 1-29/32 | 7/16 | 23/32 | 1-21/32 | 3/8 | 2.65 |
BBXBLK-HFL20720 | 1-1/4 | 6-11/32 | 5-1/8 | 3-17/32 | 3/4 | 9/16 | 1-11/32 | 2-1/32 | 9/16 | 3/4 | 1-31/32 | 1/2 | 3.53 |
BBXBLK-HFL20721 | 1-5/16 | 6-11/32 | 5-1/8 | 3-17/32 | 3/4 | 9/16 | 1-11/32 | 2-1/32 | 9/16 | 3/4 | 1-31/32 | 1/2 | 3.53 |
BBXBLK-HFL20722 | 1-3/8 | 6-11/32 | 5-1/8 | 3-17/32 | 3/4 | 9/16 | 1-11/32 | 2-1/32 | 9/16 | 3/4 | 1-31/32 | 1/2 | 3.53 |
BBXBLK-HFL20723 | 1-7/16 | 6-11/32 | 5-1/8 | 3-17/32 | 3/4 | 9/16 | 1-11/32 | 2-1/32 | 9/16 | 3/4 | 1-31/32 | 1/2 | 3.53 |
BBXBLK-HFL20824 | 1-1/2 | 6-29/32 | 5-21/32 | 3-15/16 | 27/32 | 9/16 | 1-13/32 | 2-3/16 | 9/16 | 27/32 | 2-5/32 | 1/2 | 4.19 |
BBXBLK-HFL20825 | 1-9/16 | 6-29/32 | 5-21/32 | 3-15/16 | 27/32 | 9/16 | 1-13/32 | 2-3/16 | 9/16 | 27/32 | 2-5/32 | 1/2 | 4.19 |
BBXBLK-HFL20926 | 1-5/8 | 7-13/32 | 5-27/32 | 4-1/4 | 7/8 | 5/8 | 1-1/2 | 2-1/4 | 23/32 | 27/32 | — | 5/8 | 5.07 |
BBXBLK-HFL20927 | 1-11/16 | 7-13/32 | 5-27/32 | 4-1/4 | 7/8 | 5/8 | 1-1/2 | 2-1/4 | 23/32 | 27/32 | — | 5/8 | 5.07 |
BBXBLK-HFL20928 | 1-3/4 | 7-13/32 | 5-27/32 | 4-1/4 | 7/8 | 5/8 | 1-1/2 | 2-1/4 | 23/32 | 27/32 | — | 5/8 | 5.07 |
BBXBLK-HFL21030 | 1-7/8 | 7-3/4 | 6-3/16 | 4-7/32 | 7/8 | 5/8 | 1-9/16 | 2-3/8 | 23/32 | 31/32 | 2-17/32 | 5/8 | 5.74 |
BBXBLK-HFL21031 | 1-15/16 | 7-3/4 | 6-3/16 | 4-7/32 | 7/8 | 5/8 | 1-9/16 | 2-3/8 | 23/32 | 31/32 | 2-17/32 | 5/8 | 5.74 |
BBXBLK-HFL21132 | 2 | 8-13/16 | 7-1/4 | 5-1/8 | 31/32 | 25/32 | 1-11/16 | 2-11/16 | 23/32 | 1-3/32 | 2-13/16 | 5/8 | 8.38 |
BBXBLK-HFL21134 | 2-1/8 | 8-13/16 | 7-1/4 | 5-1/8 | 31/32 | 25/32 | 1-11/16 | 2-11/16 | 23/32 | 1-3/32 | 2-13/16 | 5/8 | 8.38 |
BBXBLK-HFL21135 | 2-3/16 | 8-13/16 | 7-1/4 | 5-1/8 | 31/32 | 25/32 | 1-11/16 | 2-11/16 | 23/32 | 1-3/32 | 2-13/16 | 5/8 | 8.38 |
BBXBLK-HFL21236 | 2-1/4 | 9-27/32 | 7-31/32 | 5-1/2 | 1-5/32 | 23/32 | 1-29/32 | 2-31/32 | 23/32 | 1-7/32 | 3-1/32 | 5/8 | 10.60 |
BBXBLK-HFL21238 | 2-3/8 | 9-27/32 | 7-31/32 | 5-1/2 | 1-5/32 | 23/32 | 1-29/32 | 2-31/32 | 23/32 | 1-7/32 | 3-1/32 | 5/8 | 10.60 |
BBXBLK-HFL21239 | 2-7/16 | 9-27/32 | 7-31/32 | 5-1/2 | 1-5/32 | 23/32 | 1-29/32 | 2-31/32 | 23/32 | 1-7/32 | 3-1/32 | 5/8 | 10.60 |
BBXBLK-HFL21340 | 2-1/2 | 10-5/32 | 8-9/32 | 6-3/32 | 1-3/16 | 25/32 | 1-31/32 | 3-7/32 | 23/32 | 1-11/32 | 3-5/16 | 5/8 | 13.20 |
BBXBLK-HFL21444 | 2-3/4 | 10-7/16 | 8-1/2 | 6-5/16 | 1-7/32 | 25/32 | 2-1/8 | 3-1/4 | 29/32 | 1-11/32 | 3-1/2 | 3/4 | 13.90 |
BBXBLK-HFL21548 | 3 | 10-13/16 | 8-27/32 | 6-15/32 | 1-11/32 | 7/8 | 2-5/32 | 3-1/2 | 29/32 | 1-15/32 | 3-11/16 | 3/4 | 15.87 |