DC gear-motor QJS42

planetarycoaxialsolid-shaft

Product Details
QJS 42mm all-metal planetary gear motor is engineered for drive systems requiring high torque density, structural stability and reliable transmission performance. Outer diameter: 42 mm; momentary torque up to 180 kgf·cm; continuous torque up to 120 kgf·cm.

Key Features

• Momentary torque up to 180 kgf·cm
• 42 mm all-metal planetary drive structure
• Stainless-steel output shaft with ball bearing for stable output
• Machined metal gears and metal case
• Operating temperature range: -30°C to +100°C
• Operating humidity: 20%–85% RH
• Design and manufacturing customization available

Technical Parameters
Model series: QJS
Outer diameter: 42 mm
Gear stages: 1 / 2 / 3 / 4
Reduction ratios: 1 stage: 3.7, 5.2; 2 stages: 13.7, 20.35, 27; 3 stages: 50, 71, 100, 140; 4 stages: 187, 263, 370, 520
Gear length (mm): 1 stage: 31.6; 2 stages: 42.5; 3 stages: 53.4; 4 stages: 46.3
Max allowable continuous torque (kgf·cm): 1 stage: 10; 2 stages: 50; 3 stages: 100; 4 stages: 120
Max allowable momentary torque (kgf·cm): 1 stage: 15; 2 stages: 75; 3 stages: 150; 4 stages: 180
Efficiency (%): 1 stage: 90; 2 stages: 81; 3 stages: 73; 4 stages: 65
Motor length: depends on specified motor
Gearbox type: planetary structure (all-metal)
Output shaft material: stainless steel
Output shaft bearing: ball bearing
Gear material: machined metal gears
Case material: metal
Operating humidity: 20%–85% RH
Operating temperature: -30°C–+100°C
SKU: QJS42

Typical applications

• Industrial robotics and articulated joints
• Precision actuators and positioning systems
• Valve and damper actuators
• Packaging and material-handling machinery
• Automation equipment requiring compact high-torque drives