BOLTTE POM Right-Angle Bevel Gears — Module 1/1.5, 20–30 Teeth
White POM right-angle bevel gears for compatible mechanical transmission and automation assemblies. Select the module, tooth count and bore shown in the corresponding engineering drawing.
Model Selection
- Module 1: 20-, 25- and 30-tooth configurations with the listed bore options.
- Module 1.5: 20- and 25-tooth configurations with the listed bore options.
- Each model drawing shows the applicable outside diameter, overall thickness, step, hub thickness and tooth length.
Material and Use
- POM engineering-plastic gear body with a metal-lined bore as shown.
- 90-degree bevel-gear geometry for compatible shafts and mating gears.
- Use only with a compatible module, tooth count, shaft diameter, alignment and load rating.
POM bevel gear selection: read module, teeth and bore
A model such as M1-20T-B4 identifies three separate dimensions of the selection: module 1, 20 teeth and a 4 mm bore. Keep all three with the drawing when specifying a right-angle gear pair.
| Selection detail | What to check |
|---|
| Module | Match the mating tooth system; a similar outside diameter is not a substitute. |
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| Tooth count | Confirm the required pair and transmission ratio, not just one gear's size. |
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| Bore and hub | Verify shaft fit, hub clearance and any machining request before ordering. |
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Is a bevel gear the same as a crossed helical gear?
No. They use different tooth geometry and installation arrangements. Compare the complete mechanism before changing gear type; material or module alone does not establish compatibility.
Related selection references
Compare the drawings and intended function; these references are not a statement of direct interchangeability.
Order Notes
Confirm the module, tooth count, bore size and mating gear before ordering. If machining is required, include the shaft diameter and whether a through bore is needed in the order notes.
Check the engineering drawing, center distance, clearance, speed, torque, lubrication, temperature and operating environment for the complete mechanism. Product dimensions are shown in millimetres unless marked otherwise.


