
High-Performance
Industrial Gears —Fast
Diamond Gear delivers durable worm gears, bevel gears, and declutch gears—our abundant inventory ensures consistently quick lead times, custom machining, and same-day shipping for urgent industrial needs.
Products and Capabilities
Diamond Gear engineers’ precision gear and actuation solutions for demanding industries. Our Houston facility offers custom machining, fast delivery, and robust products that perform reliably, even in the harshest conditions.

Key Products and Services

Worm Gears
Worm Gears
Heavy-duty ductile iron and stainless-steel options delivering up to 516,000 foot-pound torque for precise valve control. Designed for quarter-turn valves and damper drives, our solutions provide enhanced mechanical advantage, enabling safe and efficient manual valve operation. Offered in manual or MOV configurations, allowing operation by an individual or an electric motor. Our in-house machining capabilities allow us to provide custom mounting configurations to meet customer-specific application requirements.

Bevel Gears
Bevel Gears
Engineered for smooth operation in tight spaces where directional torque changes are critical. Our bevel gearboxes are designed for both thrust and non-thrust applications, including gate and globe valves. These gear operators are versatile for nearly any multi-turn, right-angle application where mechanical advantage is needed.

Declutchable Gears
Declutchable Gears
Declutchable worm gearboxes, AKA “sandwich” style manual overrides, are mounted between the mainline valve and either a pneumatic, hydraulic, or electric actuator as part of an automated valve package. The declutch gear enables manual operation of the automated valve assembly if the facility were to lose air supply, power, gas, hydraulic fluid power, or electricity.

Gear Accessories
Gear Accessories
Custom parts and enhancements tailored to integrate seamlessly into industrial systems.

Custom Machining
Custom Machining
In-house machine shop for fast modifications, unique parts, and rapid turnaround.
Why Choose Diamond Gear?
For over 25 years, Diamond Gear has been the trusted source for precision gears and rapid, custom solutions. With Diamond Gear, you get:
- Dedicated customer service and product support.
- Abundant inventory levels.
- In-house custom machining.
- High torque and thrust ratings.
- Local Houston support.
- Proven industrial reliability and durable products.

Need Custom Gear Solutions Fast?
Want to learn how to get the gears you need? Speak with Houston experts and find out.
Fast response, no obligation.