AGMA Member CompanySince 1946East Walpole, MA
AGMA Member CompanySince 1946East Walpole, MA
CUSTOM BEVEL & MITER GEAR MANUFACTURING
Commercial Gear & Sprocket manufactures custom bevel and miter gears for OEMs, machine builders, replacement applications and industrial power-transmission equipment.
Built to your specifications
Commercial Gear manufactures bevel and miter gears according to customer drawings, dimensions, gear geometry, tolerances and application requirements. Customers may supply pre-machined blanks, or we can support additional machining and finishing operations.
Manufacturing range
Maximum diameter
Up to 24″
Bevel and miter gears generated up to 24 inches in diameter.
Maximum face width
Up to 3½″
Face widths up to 3½ inches along the pitch cone.
Diametral pitch
64 – 3 D.P.
From fine 64 D.P. teeth through to coarse 3 D.P. teeth.
Gear types
Custom bevel & miter gears
Manufacturing
Built to customer specifications
Custom gear solutions
Manufactured to customer drawings, gear geometry, tolerances and application requirements.
Matched gear solutions typically used where rotary motion is transferred between intersecting shafts.
Manufactured using dedicated Gleason Coniflex gear-generating equipment.
Custom replacement components for existing industrial equipment and gear assemblies.
Specialized gear cutting
Commercial Gear maintains dedicated Gleason equipment for custom bevel and miter gear manufacturing.
Bevel Gear Generator
Coniflex High-Speed Bevel Generators
Coniflex Bevel Generator
Coniflex gear manufacturing
Commercial Gear operates specialized Gleason Coniflex equipment as part of its bevel gear manufacturing capabilities.
Inspection can evaluate characteristics such as:
Contact pattern checked to confirm how the teeth mesh under the required mounting.
Radial and axial runout measured against the drawing.
Backlash verified at the required mounting distance.
Addendum, tooth thickness, depth and toe/heel contact as the part requires.
CNC machining
Commercial Gear can support machining before or after gear generation.
Diameters, faces and hubs turned on blanks before or after gear generation.
Flats, slots and other milled features machined to the drawing.
Bores machined to size and tolerance for the required shaft fit.
Existing bores opened up to suit a new shaft or replacement application.
Internal and external keyways cut to your exact specifications. Horizontal and vertical broachinjg up to 1.5 inches in width.
Holes for set screws, mounting or other drawing features.
Finishing & secondary operations
Services can include:
Tooth edges chamfered after cutting to remove sharp corners.
Burrs removed from cut teeth and machined features.
Specified heat treatment coordinated as part of the job.
Finishes applied as the drawing requires.
Other customer-specified machining in the same project.
Gear characteristics checked against the drawing.
Bores, diameters and features verified dimensionally.
Flexible production
Custom gear requirements for development or testing.
Replacement bevel and miter gears for existing equipment.
Flexible manufacturing for limited quantities.
Support for ongoing production-volume requirements.
Industrial applications
Custom bevel and miter gears are used where rotary motion and power must be transferred between intersecting shafts.
Power and rotary motion transferred between intersecting shafts.
Miter pairs at a 1:1 ratio, typically turning motion through 90°.
Custom bevel sets for OEM machinery, machine builders and equipment.
Worn or obsolete gears reproduced for existing gear assemblies.
Industries we serve
Bevel and miter gears for rail cars and public transit equipment.
Gearing for machine tool builders and machine tool equipment.
Including a noisy marine-pump bevel set we diagnosed and remanufactured.
Custom gears to OEM drawings — from prototypes to production.
Components for construction and mining equipment manufacturers.
Custom bevel sets for specialized industrial machinery.
Quality & inspection
Tooth contact, runout and dimensional accuracy decide how a bevel gear set performs. Each component is evaluated against the customer drawing and project requirements.
Circular tooth thickness and addendum measured.
Whole depth checked against the drawing.
Radial runout measured as the gear rotates.
Axial (face) runout measured relative to the datum.
Bearing pattern checked on the Gleason #6 Bevel Gear Checker.
Toe, heel and cross-bearing conditions identified.
Backlash checked at the required mounting distance.
Bores and dimensional requirements verified.
Real-world gear experience
01
Excessive noise in an existing marine pump bevel gear assembly.
02
Issues were identified involving tooth-bearing pattern and radial and axial runout.
03
Commercial Gear developed a quality plan and was awarded the manufacturing work.
Gear manufacturing since 1946
Decades of custom gear manufacturing experience.
Specialized equipment for bevel and Coniflex gear manufacturing.
Gear cutting combined with CNC machining and secondary operations.
Flexible support from individual components through production requirements.
Dedicated inspection equipment and practical troubleshooting experience.
Start your project
Send your drawing, specifications, required quantity and application information for review.
Bevel & miter gear FAQ
A bevel gear is a gear with teeth formed on a conical surface and is commonly used to transmit power or rotary motion between intersecting shafts. The gear geometry, ratio, shaft angle, and tooth configuration are selected according to the application.
A miter gear is a specific type of bevel gear. Miter gears are generally used in matched pairs with the same number of teeth and a 1:1 ratio, commonly to transfer motion between shafts intersecting at 90 degrees.
Yes. Commercial Gear manufactures custom bevel and miter gears according to customer drawings, specifications, gear geometry, tolerances, and application requirements.
Standard bevel and miter gears are quoted up to 24 inches in diameter with face widths up to 3½ inches. Larger or unusual requirements should be submitted for review.
Custom bevel and miter gears are manufactured from 64 D.P. to 3 D.P.
Commercial Gear operates specialized Gleason bevel gear generating equipment, including Gleason #12, #104 Coniflex, and #14 Coniflex machines. Additional CNC machining and secondary operations can be incorporated according to project requirements.
Yes. Our quotation process supports single prototypes, replacement components, short production runs, and production-volume orders.
Inspection can include tooth thickness and depth, radial and axial runout, tooth-bearing pattern, toe and heel contact, backlash, and dimensional verification. Commercial Gear maintains dedicated Gleason bevel gear checking equipment for this work.
