Three Groove Sheaves – COMBINATION GROOVE for “4L” or “A”Belts and “5L” or “B” Belts
Stock Sizes—with Split Taper Bushings
| Part No. | DIAMETERS | Type | DIMENSIONS | Wt. Less Bush | |||||||||
| Out-side | Datum “A” | Datum “B” | Inside | F | L | P | C | X | G | E | |||
| 3BK45H | 4.25″ | 3.5″ | 3.9″ | 2 5/8″ | 2 | 2 1/2″ | 1 1/4″ | 1/2″ | 11/16″ | 7/8″ | 7/16″ | 3/16″ | 3.90 |
| 3BK47H | 4.45 | 3.70 | 4.10 | 2 11/16 | 2 | 2 1/2 | 1 1/4 | 1/2 | 11/16 | 7/8 | 7/16 | 3/16 | 4.20 |
| 3BK50H | 4.75 | 4.00 | 4.40 | 3 | 2 | 2 1/2 | 1 1/4 | 1/2 | 11/16 | 7/8 | 7/16 | 3/16 | 4.40 |
| 3BK52H | 4.95 | 4.20 | 4.60 | 3 3/16 | 2 | 2 1/2 | 1 1/4 | 1/2 | 11/16 | 7/8 | 7/16 | 3/16 | 4.70 |
| 3BK55H | 5.25 | 4.50 | 4.90 | 3 1/2 | 2 | 2 1/2 | 1 1/4 | 1/2 | 11/16 | 7/8 | 7/16 | 3/16 | 5.10 |
| 3BK57H | 5.45 | 4.70 | 5.10 | 3 11/16 | 2 | 2 1/2 | 1 1/4 | 1/2 | 11/16 | 7/8 | 7/16 | 3/16 | 5.30 |
| 3BK60H | 5.75 | 5.00 | 5.40 | 4 | 3 | 2 1/2 | 1 1/4 | 1/2 | 11/16 | 7/8 | 7/16 | 3/16 | 5.60 |
| 3BK62H | 5.95 | 5.20 | 5.60 | 4 3/16 | 3 | 2 1/2 | 1 1/4 | 1/2 | 11/16 | 7/8 | 7/16 | 3/16 | 5.80 |
| 3BK65H | 6.25 | 5.50 | 5.90 | 4 1/2 | 3 | 2 1/2 | 1 1/4 | 29/32 | 9/32 | 7/8 | 7/16 | 3/16 | 5.80 |
| 3BK67H | 6.45 | 5.70 | 6.10 | 4 11/16 | 3 | 2 1/2 | 1 1/4 | 29/32 | 9/32 | 7/8 | 7/16 | 3/16 | 6.20 |
| 3BK70H | 6.75 | 6.00 | 6.40 | 5 | 3 | 2 1/2 | 1 1/4 | 29/32 | 9/32 | 7/8 | 7/16 | 3/16 | 6.60 |
| 3BK80H | 7.75 | 7.00 | 7.40 | 6 | 3 | 2 1/2 | 1 1/4 | 27/32 | 11/32 | 7/8 | 7/16 | 3/16 | 8.30 |
| 3BK90H | 8.75 | 8.00 | 8.40 | 7 | 3 | 2 1/2 | 1 1/4 | 27/32 | 11/32 | 7/8 | 7/16 | 3/16 | 9.80 |
| 3BK100H | 9.75 | 9.00 | 9.40 | 8 | 3 | 2 1/2 | 1 1/4 | 27/32 | 11/32 | 7/8 | 7/16 | 3/16 | 10.90 |
| 3BK110H | 10.75 | 10.00 | 10.40 | 9 | 3 | 2 1/2 | 1 1/4 | 27/32 | 11/32 | 7/8 | 7/16 | 3/16 | 12.10 |
| 3BK120H | 11.75 | 11.00 | 11.40 | 10 | 3 | 2 1/2 | 1 1/4 | 27/32 | 11/32 | 7/8 | 7/16 | 3/16 | 14.30 |
| 3BK130H | 12.75 | 12.00 | 12.40 | 11 | 3 | 2 1/2 | 1 1/4 | 25/32 | 13/32 | 7/8 | 7/16 | 3/16 | 16.20 |
| 3BK140H | 13.75 | 13.00 | 13.40 | 12 | 3 | 2 1/2 | 1 1/4 | 25/32 | 13/32 | 7/8 | 7/16 | 3/16 | 17.70 |
| 3BK160H | 15.75 | 15.00 | 15.40 | 14 | 3 | 2 1/2 | 1 1/4 | 25/32 | 13/32 | 7/8 | 7/16 | 3/16 | 21.00 |
| 3BK190H | 18.75 | 18.00 | 18.40 | 17 | 3 | 2 1/2 | 1 1/4 | 25/32 | 13/32 | 7/8 | 7/16 | 3/16 | 25.80 |