CALM Accessories

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