Texas Belting & Supply stocks 44 CALM Accessories - CALM-series aluminum worm gear reducers give compact, economical right-angle reduction with high ratios in a single stage. Light weight and a NEMA C-face input make them easy to mount on smaller drives. Available, with in-stock items that typically ship same-day. Call (888) 203-2358 for sizing help.
Common Applications
- Light-duty conveyors and packaging
- Rotary tables and indexing
- Small mixers and feeders
- Compact right-angle drives
Frequently Asked Questions
When should I use a worm gear vs helical-bevel?
Worm reducers (CALM) are compact and cheap for high single-stage ratios and light duty; helical-bevel (KAN/KHN) is more efficient for continuous or higher-power loads.
Are worm reducers self-locking?
High-ratio worm sets can be self-locking, which prevents back-driving - useful on lifts and holds. Confirm for your ratio.
What input mounts are available?
NEMA C-face for direct motor mounting, plus solid input shaft options.
Selection help: Reducer series comparison · Reducer sizing guide
