High-Torque Gearbox for Impact Wrenches
Customer: Leading Power Tool OEM
Challenge
Customer needed GB9 precision gears for a 1000 N.m impact wrench with 500+ hour service life and noise levels below 75 dB.
Solution
Designed planetary gear sets using KISSsoft shrinkage-compensated tooth profiles. Selected FC-0508 material with post-sinter sizing for maximum wear resistance.
Results
- Achieved GB9 gear precision with noise below 70 dB
- Passed 600-hour continuous load testing
- Reduced per-part cost 22% versus machined gears at volume
- Monthly supply: 500,000+ gear sets
