H* Bushings for O-A and A-B Combination Grooves USA/NOVA Import
- Sheaves and Bushings are zinc phosphate for rust resistance.
- All steel, tapered bushing creates wedging action for full grip on the shaft.
- Fully split for extra holding power.
- Two machined screws for quick mounting and dismounting.
- Two mounting holes for fast assembly.
- Two taped holes for easy removal.
Bushing Dimensions
| A | B | C | D | E | Bolt Circle | Cap Screws Required |
| 1.625 | 2-1/2 | 1 | 1/4 | 1-1/4 | 2 | 2 ea. 1/4 x 3/4 |
Standard Bore Sizes
| USA Stock No.** | NOVA Import Stock No. | Bore Size | Keyway Size | Wt. Lbs. |
| 75040006++ | 3/8 | None | 1.06 | |
| 75040007 | 750400075 | 7/16 | None | 1.04 |
| 75040008 | 750400085 | 1/2 | None | 1.02 |
| 75040009 | 750400095 | 9/16 | None | 1.00 |
| 75040010 | 750400105 | 5/8 | 3/16 x 3/32 | 0.98 |
| 75040011 | 750400115 | 11/16 | 3/16 x 3/32 | 0.96 |
| 75040012 | 750400125 | 3/4 | 3/16 x 3/32 | 0.94 |
| 75040013 | 750400135 | 13/16 | 3/16 x 3/32 | 0.92 |
| 75040014 | 750400145 | 7/8 | 3/16 x 3/32 | 0.90 |
| 75040015 | 750400155 | 15/16 | 1/4 x 1/8 | 0.88 |
| 75040016 | 750400165 | 1 | 1/4 x 1/8 | 0.86 |
| 75040017 | 750400175 | 1-1/16 | 1/4 x 1/8 | 0.84 |
| 75040018 | 750400185 | 1-1/8 | 1/4 x 1/8 | 0.82 |
| 75040019 | 750400195 | 1-3/16 | 1/4 x 1/8 | 0.80 |
| 75040020 | 750400205 | 1-1/4 | 1/4 x 1/8 | 0.78 |
| 75040021 | 1-5/16 | 5/16 x 5/32 | 0.76 | |
| 75040022 | 750400225 | 1-3/8 | 5/16 x 5/32 | 0.74 |
| 75040023 | 750400235 | 1-7/16 | 3/8 x 3/16 | 0.72 |
| 75040024 | 1-1/2 | 3/8 x 3/16 | 0.70 |
Metric Bore Sizes
| USA Stock No.** | Bore Size | Keyway Size | Wt. Lbs. |
| 7504M014 | 14mm | 5mm x 5mm | 1.00 |
| 7504M016 | 16mm | 5mm x 5mm | 0.98 |
| 7504M018 | 18mm | 6mm x 6mm | 0.96 |
| 7504M019 | 19mm | 6mm x 6mm | 0.94 |
| 7504M020 | 20mm | 6mm x 6mm | 0.92 |
| 7504M022 | 22mm | 6mm x 6mm | 0.90 |
| 7504M024 | 24mm | 8mm x 7mm | 0.88 |
| 7504M025 | 25mm | 8mm x 7mm | 0.86 |
| 7504M028 | 28mm | 8mm x 7mm | 0.84 |
| 7504M030 | 30mm | 8mm x 7mm | 0.82 |
| 7504M032 | 32mm | 10mm x 8mm | 0.80 |
| 7504M035 | 35mm | 10mm x 8mm | 0.78 |
| 7504M038 | 38mm | 10mm x 8mm | 0.76 |
* H Bushings are interchangeable with D & Q & QT Bushings.
++ These sizes will not be available once current G&G Manufacturing Company inventories have been sold.
CAUTION: Do not use with rim speeds in excess of 6500 feet per minute.
** Manufactured in the USA by G&G Manufacturing Company.