| Performance Specifications | ||||||||
| Gearing | Worm Gear | |||||||
| Maximum Input Speed | 1,800 rpm | |||||||
| Gear Ratio | 3.5:1 | 10:1 | 15:1 | 20:1 | 30:1 | 40:1 | 48:1 | 60:1 |
| Rated Input Hp at 1800 rpm |
0.84 | 0.33 | 0.27 | 0.22 | 0.15 | 0.10 | 0.09 | 0.075 |
|
Rated Output
Torque lbs-inch |
102 | 102 | 102 | 105 | 120 | 112 | 96 | 75 |
|
Output Torque Efficiency Chart
|
Click here | Click here | Click here | Click here | Click here | Click here | Click here | Click here |
|
Output Torque/RPM Curve
|
Click here to view | Click here to view | Click here to view | Click here to view | Click here to view | Click here to view | Click here to view | Click here to view |
A wide range of gear ratios is available to meet precise torque and speed requirements, with high gear ratios achieved by the worm and worm wheel design—where the input shaft must turn many times to rotate the output shaft once, providing significant mechanical advantage and right-angle power transmission. The main trade-off is lower efficiency due to sliding friction, which generates heat, but this also results in quiet, smooth operation with minimal noise and vibration.
| Input/Output Configurations | |
| Double Input Shaft | 0.3125 Dia solid |
| Single Output Shaft | Solid 1/2 Dia |
| Hollow 5/8 ID | |
| Input Shaft Bearings | Sintered Bronze |
| Output Shaft Bearings | Sintered Bronze |
Multiple output shafts and configurations are available, and custom options can be manufactured to meet unique application requirements, including modifications to existing designs or entirely new models. The JRSTB series, for example, features a continuous worm shaft for additional couplings, and output shafts can be customized with keys and retainer rings for versatility.
| General Specifications | |
| Lubrication | Grease |
| Weight | 1.75 Lbs (0.8 Kg) |
| SW-1S Dimension Chart | Click Here for Chart |
| SW-1H Dimension Chart | Click Here for Chart |
| SW-1 Mounting Configuration Chart | Click Here for Chart |
| Download 3D Drawing SW-1 | Click Here for Chart |
The small diameter of the output gear allows for compact installations and use in space-limited applications, while the lightweight construction—using high-quality components and materials—ensures durability, reliability, and ease of integration. The SW-1 series is cost-effective, balancing performance and expense, and is designed for consistent operation across a variety of settings. The product range includes different models such as SW-1S and SW-1H, covering diverse application needs. Custom miniature and micro gearboxes can be engineered and manufactured for unique specifications, achieving high torque capacity and durability through specialized worm gear designs. Small worm gear reducers provide right-angle power transmission with a 90-degree orientation of the worm and worm wheel, making them ideal for tight spaces and efficient machine layouts. These gearboxes are widely used in automated systems, packaging machinery, robotics, conveyor systems, lifts, and hoists for precise, controlled, high-torque, low-speed motion, and their self-locking capability in high-ratio designs prevents back-driving. Superior Gearbox's Variodrive series and Cone Drive's double enveloping worm gear design are examples of industry innovations, offering higher load capacity and lower contact stress. All worm gear reducers are built to handle shock loads and are manufactured for reliable, quiet, and smooth operation.

To Place an Order or Check Status of Order, Contact...
1246 High Street, Fairport Harbor, Ohio 44077 USA

CONTACT US