WAB90 Helical Planetary Gearbox ≤2 arcmin for 80mm Servo Motor

This WAB90 helical planetary gearbox is engineered for 80 mm servo motors, featuring a space-saving inline design with a built-in input coupling that accepts a Φ19 mm motor shaft (max. 45 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 95–150 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 2,400 N radial / 1,800 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 Φ22 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: WAB90
• Product Type: Helical Planetary Gearbox
• Rated Input Speed: 3,000 RPM
• Max. Input Speed: 6,000 RPM
• Max. Radial Load: 2,400 N
• Max. Axial Load: 1,800 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: Φ22 mm
• Output Shaft Length: 48 mm
• Input Shaft Diameter: Φ19 mm
• Input Shaft Length: Max. 45 mm