High-Power Metal Bevel Gears
Made from carbon steel with spiral teeth, these gears handle heavier loads at higher speeds than bevel gears with straight teeth because their teeth stay in contact longer. Their teeth engage gradually, which reduces vibration and noise, and they’re hardened for extra wear resistance. Use these gears to transmit motion at a right angle while changing shaft speed and torque. They reduce speeds at ratios of 2:1, 3:1, or 4:1. Customize their machinable bore to fit them on a variety of shafts. They’re also known as spiral bevel gears.
A complete set consists of a gear and pinion (sold separately). The gear is larger than the pinion, but for them to mesh correctly, they must have the same pressure angle, module, and face width.
Speed ratio is the ratio by which shaft speed is reduced when transferring motion from pinion to gear. To increase shaft speed, transfer motion from gear to pinion. Changing shaft speed also changes torque: as speed decreases, torque increases.
Hub | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Face Width, mm | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm  | OD, mm | Overall Width, mm | For Shaft Diameter, mm | Mounting Distance (A), mm | Material | Diameter, mm | Width, mm | Each | |
Machinable Round Bore | |||||||||||||
| 6 | 20° | 2:1 | 40 | 40 | 40.52 | 15 | 8-18 | 22 | Black-Oxide 1045 Carbon Steel | 25 | 8 | 0000000 | 000000 |
| 10 | 20° | 2:1 | 40 | 60 | 60.75 | 24.9 | 10-25 | 35 | Black-Oxide 1045 Carbon Steel | 38 | 15 | 0000000 | 00000 |
| 12 | 20° | 4:1 | 60 | 90 | 90.36 | 24.1 | 12-45 | 32 | Black-Oxide 1045 Carbon Steel | 60 | 12 | 0000000 | 000000 |
| 15 | 20° | 3:1 | 45 | 90 | 90.67 | 30.3 | 12-30 | 40 | Black-Oxide 1045 Carbon Steel | 40 | 17 | 0000000 | 000000 |
Hub | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Face Width, mm | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Width, mm | For Shaft Diameter, mm | Mounting Distance (B), mm | Material | Diameter, mm | Width, mm | Each | |
Machinable Round Bore | |||||||||||||
| 6 | 20° | 2:1 | 20 | 20 | 22.08 | 13.7 | 6-9 | 28 | Black-Oxide 1045 Carbon Steel | 16 | 7 | 0000000 | 000000 |
| 10 | 20° | 2:1 | 20 | 30 | 33.08 | 25.5 | 8-15 | 46 | Black-Oxide 1045 Carbon Steel | 25 | 15 | 0000000 | 00000 |
| 12 | 20° | 4:1 | 15 | 23 | 26.09 | 23 | 8-10 | 56 | Black-Oxide 1045 Carbon Steel | 18 | 10 | 0000000 | 00000 |
| 15 | 20° | 3:1 | 15 | 30 | 34.78 | 29.7 | 10-14 | 60 | Black-Oxide 1045 Carbon Steel | 24 | 14 | 0000000 | 00000 |
High-Power Metal Miter Gears
Also known as spiral miter gears, these gears have curved teeth that stay in contact longer than straight teeth so they handle heavier loads at higher speeds. They run quieter than standard miter gears because the teeth gradually engage. Use them to transmit motion at a right angle while maintaining shaft speed and torque. Gears are carbon steel for strength. Teeth are hardened for wear resistance.
Gears must be identical in order to mesh correctly; they're sold as a pair.
Hub | Keyway | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gear Pitch | Number of Teeth | Pressure Angle | Gear Pitch Dia. | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Mounting Distance | Material | Dia. | Wd. | Wd. | Dp. | Set Screw Thread Size | Pair | |
Keyed Bore with Set Screw | ||||||||||||||||
| 18 | 18 | 20° | 1" | 1.07" | 0.22" | 0.74" | 3/8" | 1.062" | 1117 Carbon Steel | 0.75" | 0.44" | 0.094" | 0.047" | 10-32 | 000000 | 0000000 |
| 12 | 15 | 20° | 1 1/4" | 1.36" | 0.3" | 0.86" | 1/2" | 1.25" | 1117 Carbon Steel | 1" | 0.5" | 0.125" | 0.063" | 1/4"-20 | 000000 | 000000 |
| 12 | 18 | 20° | 1 1/2" | 1.61" | 0.34" | 1.02" | 5/8" | 1.5" | 1117 Carbon Steel | 1.25" | 0.56" | 0.188" | 0.094" | 5/16"-18 | 000000 | 000000 |
| 10 | 20 | 20° | 2" | 2.13" | 0.47" | 1.36" | 3/4" | 2" | 1117 Carbon Steel | 1.625" | 0.78" | 0.188" | 0.094" | 5/16"-18 | 000000 | 000000 |
Metric Right-Angle Gear Boxes
Transmit rotary motion at a right angle without changing speed or torque. Gear boxes are permanently lubricated to save maintenance time and effort. Connect to a motor using a shaft coupling (not included).
Max. Output | Max. Input | Input Shaft | Output Shaft | Overall | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Speed Ratio | Torque | Speed, rpm | Speed, rpm | hp | Dia., mm | Lg., mm | Dia., mm | Lg., mm | Lg., mm | Wd., mm | Ht., mm | Each | |
Gear Boxes | |||||||||||||
| 1:1 | 6 in.-lbs. @ 1,750 rpm | 3,000 | 3,000 | 0.19 | 5 | 16 | 5 | 16 | 56 | 56 | 25 | 0000000 | 0000000 |
| 1:1 | 18 in.-lbs. @ 1,750 rpm | 3,000 | 3,000 | 0.7 | 8 | 20 | 8 | 20 | 75 | 75 | 34 | 0000000 | 000000 |
| 1:1 | 40 in.-lbs. @ 1,750 rpm | 3,000 | 3,000 | 1.69 | 10 | 25 | 10 | 25 | 100 | 100 | 44 | 0000000 | 000000 |
| 1:1 | 124 in.-lbs. @ 1,750 rpm | 3,000 | 3,000 | 4.84 | 15 | 40 | 15 | 40 | 140 | 140 | 60 | 0000000 | 00000000 |