WAB40 Helical Planetary Gearbox ≤3 arcmin for 40mm Servo Motor

This WAB40 helical planetary gearbox is engineered for 40 mm servo motors, featuring a space-saving inline design with a built-in input coupling that accepts a Φ8 mm motor shaft (max. 32 mm length). Its helical gearing delivers exceptionally low backlash of ≤3 arcmin (single-stage) or ≤5 arcmin (two-stage), with reduction ratios from 3:1 to 100:1, rated output torque of 37–55 N·m, and transmission efficiency of 98% (single-stage) or 96% (two-stage). The gearbox handles a rated input speed of 3,000 RPM (max. 6,000 RPM) and loads of 800 N radial / 560 N axial, operating at ≤55 dB with IP65 protection, lifetime lubrication, a 20,000-hour lifespan, and an ambient temperature range of -40°C to +150°C. Its Φ13 mm keyed output shaft and helical low-backlash design make it well suited to high-precision motion axes in CNC machining centers, industrial robotics, automated production lines, packaging machinery, and semiconductor handling equipment where smooth, quiet operation and accurate torque multiplication from an 80 mm servo platform are essential.

WAB90 General Specification

• Manufacturer Part Number: WAB40
• Product Type: Helical Planetary Gearbox
• Rated Input Speed: 3,000 RPM
• Max. Input Speed: 6,000 RPM
• Max. Radial Load: 800 N
• Max. Axial Load: 560 N
• Noise: ≤55 dB
• Protection Class: IP65
• Lifespan: 20,000 Hours
• Ambient Temperature: -40° to +150°
• Lubrication Type: Lifetime Lubrication
• Output Shaft Type: Keyway
• Output Shaft Diameter: Φ13 mm
• Output Shaft Length: 25.5 mm
• Input Shaft Diameter: Φ8 mm
• Input Shaft Length: Max. 27 mm