Linner Gears manufactures custom spur gears to customer drawings and specifications for precision power transmission, positioning, and motion-control applications. We review tooth geometry, materials, heat-treatment requirements, tolerances, quantities, and inspection needs before production.
Spur Gear Types We Manufacture
External Spur Gears
Custom external spur gears with specified module or diametral pitch, pressure angle, tooth count, bore, hub, keyway, and mounting features.
Spur Pinions & Gear Shafts
Integral pinions and gear shafts manufactured to drawing with specified shaft steps, threads, splines, keyways, bearing seats, and surface-finish requirements.
Compound & Cluster Gears
Custom compound and cluster gear components produced for compact reductions and multi-stage transmission assemblies.

Spur Gear Specifications We Review
Tooth & Gear Data
- Module or diametral pitch
- Tooth count and pressure angle
- Outside diameter, face width, bore, and hub dimensions
- Backlash, runout, profile, and lead tolerances
- Mating gear and center-distance information
Application & Production Requirements
- Torque, speed, duty cycle, and operating direction
- Material, hardness, heat treatment, and surface finish
- Noise, lubrication, operating temperature, and environment
- Required accuracy, inspection method, and documentation
- Prototype or production quantity and target delivery schedule
Materials and Applications
Material Considerations
- Carbon and alloy steel
- Stainless steel
- Brass, bronze, and aluminum
- Engineering plastics where appropriate
- Hardness, heat treatment, coating, and surface finish
Typical Applications
- Industrial gearboxes and speed reducers
- Automation and indexing mechanisms
- Robotics, actuators, and servo systems
- Pumps, instruments, and compact drives
- Custom OEM machinery and production equipment
Discuss Your Spur Gear Requirements
Tell us about the required tooth geometry, dimensions, material, quantity, tolerances, operating conditions, and inspection needs. Our team will review the project before quotation.