DescriptionPG-P28 Powder Metallurgy Gear Motor is a 28 mm planetary gear motor designed for compact, high-load miniature drive applications. It delivers up to 60 kgf·cm continuous torque and up to 90 kgf·cm momentary (peak) torque. The unit features a compact metal housing, stainless steel output shaft and roller/ball bearing support to ensure stable power transmission.
Key features- Peak load capacity: 90 kgf·cm (momentary)
- Integrated 28 mm drive format
- Stainless steel output shaft
- Robust ball/roller bearing support for stable power transmission
- Compact metal case
Parameters (summary table)PG-P28
Gear Stages: 1 | 2 | 3 | 4
Gear Ratio: 4.6 | 16, 24, 36 | 64, 96, 144, 216 | 256, 384, 576, 864, 1296
Gear Length (mm): 21.3 | 29.8 | 38.3 | 46.3
Max. Allowable Continuous Torque (kgf·cm): 7.5 | 30 | 50 | 60
Max. Allowable Momentary Torque (kgf·cm): 11 | 45 | 75 | 90
Efficiency (%): 90 | 81 | 73 | 65
Motor Length: Depends on the specified motor
Outer Diameter: 28 mm
Gearbox Type: Planetary structure
Output Shaft Material: Stainless steel
Output Shaft Bearing Type: Ball bearings
Gear Material: Iron-based powder metallurgy, plastic, metal
Case Material: Metal
Operating Humidity: 20%–85% RH
Operating Temperature: -30°C–+100°C
Customization: Design & manufacturing available
Technical specifications- Model / SKU: PG-P28
- Outer diameter: 28 mm
- Available gear stages: 1, 2, 3, 4
- Available gear ratios (examples): 4.6; 16, 24, 36; 64, 96, 144, 216; 256, 384, 576, 864, 1296
- Gear length (by stage): 21.3 mm (1-stage), 29.8 mm (2-stage), 38.3 mm (3-stage), 46.3 mm (4-stage)
- Max. allowable continuous torque: up to 60 kgf·cm (4-stage)
- Max. allowable momentary (peak) torque: up to 90 kgf·cm (4-stage)
- Efficiency by stages: 1-stage ~90%, 2-stage ~81%, 3-stage ~73%, 4-stage ~65%
- Motor length: depends on the specified motor (customizable)
- Gearbox type: planetary structure
- Output shaft: stainless steel
- Output shaft bearings: ball bearings (roller bearing support for stable transmission)
- Gear materials: iron-based powder metallurgy, plastic, metal
- Case material: metal
- Operating humidity: 20%–85% RH
- Operating temperature range: -30°C to +100°C
- Customization: design and manufacturing available for specific requirements