Spur Gearbox
Technical Capabilities
Traditional Flexible-size Parallel Shaft Spur Gearbox
Spur gearbox are most widely used and cost-effective gearbox solutions, utilizing parallel-axis spur gears for reducing speed and power transmission. Their simple mechanical structure and mature manufacturing processes ensure stable quality and competitive cost.
Direct gear meshing provides efficient and reliable torque transmission, spurgearbox well suited for applications where efficiency, structural simplicity, and cost control.
Partnerships
SG Motor designs and manufactures both SG Motor and partner-branded products.
Spur Gearbox Series
Series TG-40
| Diameter: | 40 mm |
| Length: | 32 mm |
| Max continuous torque: | 3 ... 15 kgf.cm |
| Breaking torque: | 9 ... 50 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.6 M / 0.8 M |
Series ST Series
| Width: | 47 mm |
| Length: | 71.5 mm |
| Max continuous torque: | 10 - 30 kgf.cm |
| Breaking torque: | 30 - 90 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.5 M |
Series AF Series
| Width: | 47 mm |
| Length: | 71.5 mm |
| Max continuous torque: | 10 - 30 kgf.cm |
| Breaking torque: | 30 - 90 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.5 M |
Series TA Series
| Diameter: | 63.5 mm |
| Length: | 90.2 mm |
| Max continuous torque: | 10 - 30 kgf.cm |
| Breaking torque: | 30 - 90 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.4 M / 0.5 M |
Series ZF Series
| Diameter: | 63.5 mm |
| Length: | 90.2 mm |
| Max continuous torque: | 10 - 30 kgf.cm |
| Breaking torque: | 30 - 90 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.4 M / 0.5 M |
Series VF Series
| Diameter: | 69.8 mm |
| Length: | 76.2 mm |
| Max continuous torque: | 10 - 30 kgf.cm |
| Breaking torque: | 30 - 90 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.4 M / 0.5 M |
Series MG Series
| Diameter: | 70 mm |
| Length: | 70 mm |
| Max continuous torque: | 10 - 30 kgf.cm |
| Breaking torque: | 30 - 90 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.4 M / 0.5 M |
Series SR-32
| Diameter: | 32 mm |
| Length: | 17.5 ... 25 mm |
| Max continuous torque: | 1.0 ... 6 kgf.cm |
| Breaking torque: | 3.0 ... 18 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.4 M / 0.5 M |
Series SG-28
| Diameter: | 28 mm |
| Length: | 20.5 mm |
| Max continuous torque: | 0.5 ... 2.5 kgf.cm |
| Breaking torque: | 1.5 ... 7.5 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.4 M |
Series SR-25
| Diameter: | 25 mm |
| Length: | 14.5 ... 22.5 mm |
| Max continuous torque: | 0.3 ... 1.5 kgf.cm |
| Breaking torque: | 0.9 ... 4.5 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.4 M |
Series RG-50B
| Diameter: | 50 mm |
| Length: | 26.4 ... 37.7 mm |
| Max continuous torque: | 10 ... 30 kgf.cm |
| Breaking torque: | 30 ... 75 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.5 M / 0.6 M / 0.8 M |
Series GF Series
| Diameter: | 70 mm |
| Length: | 119 mm |
| Max continuous torque: | 30 - 100 kgf.cm |
| Breaking torque: | 90 - 300 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.4 M / 0.5 M / 0.6 M / 0.8 M / 1.0 M |
Series RG-50A
| Diameter: | 50 mm |
| Length: | 26.4 ... 37.7 mm |
| Max continuous torque: | 10 ... 30 kgf.cm |
| Breaking torque: | 30 ... 75 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.5 M / 0.6 M / 0.8 M |
Series TT Series
| Diameter: | 65 mm |
| Length: | 95 mm |
| Max continuous torque: | 3.0 - 10 kgf.cm |
| Breaking torque: | 9.0 - 30 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.5 M |
Series SG-27
| Diameter: | 27 mm |
| Length: | 17.8 ... 25.1 mm |
| Max continuous torque: | 0.5 ... 2.5 kgf.cm |
| Breaking torque: | 1.5 ... 7.5 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.4 M |
Series SR-37
| Diameter: | 37 mm |
| Length: | 22.5 ... 30 mm |
| Max continuous torque: | 1 ... 6 kgf.cm |
| Breaking torque: | 3 ... 18 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.5 M |
Series SG-37
| Diameter: | 37 mm |
| Length: | 22.5 ... 29 mm |
| Max continuous torque: | 10 ... 50 kgf.cm |
| Breaking torque: | 50 ... 100 kgf.cm |
| Backlast, at no-load: | ≤ 2° |
| Gear Module: | 0.5 M |
Spur Gearbox Features
Spur gearbox employ a parallel shaft gear structure with direct gear meshing, enabling efficient and stable power transmission. Their simple gear geometry results in high mechanical efficiency and low transmission losses, and the housing size can be flexibly adjusted by freely arranging the gears. Thanks to mature technology and a robust supply chain, spur gearbox are easy to manufacture, assemble, and maintain, making them an economical choice for large-scale industrial production.
Automated production line
The large-scale production of spur gearboxes is carried out using a complete set of automated production line equipment, which ensures production stability and cost control.
Flexible size
The spur gear structure provides flexible gear arrangement, and the TT-series and SG-series offer different size options.
Low cost
The maturity of the supply chain and automated production control the production cost and supply cycle of spur gearboxes.
Easy to maintain
A simple gear transmission structure can help customers replace parts and maintain devices.
Tools to help you choose.
Power protection for every application.