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When your drivetrain needs to change direction without losing torque, a mismatched or imprecise bevel gear set becomes the weakest link in your build. Whether you're a robotics hobbyist, a CNC machine builder, or a mechanical engineering student, these 90° bevel gear pairs give you the exact modulus and tooth count combination your project demands — sold as matched pairs ready to mesh straight out of the package.
Each listing covers a wide selection of modulus values (0.5, 0.75, 0.8, 1, 1.2, 1.25, 1.5, 1.7, 1.75, 2, 2.2, 2.25, 2.5, 2.7, 3, 3.2, 4, and 5 Mod) paired with tooth counts ranging from 12T to 160T per gear, spanning gear ratios from 1:1.5 up to 1:8. The gears are machined from metal alloy stock and feature a natural metallic finish. Bore diameter and hub dimensions vary by modulus and tooth count — see variant options for exact measurements.
Typical use cases include: right-angle power transmission in DIY gearboxes and speed reducers, direction-change mechanisms in small CNC routers and laser engravers, and custom actuator assemblies for robotics arms and automated fixtures requiring a compact 90-degree bevel gear drive.
| Product Type | 90° Bevel Gear Pair |
|---|---|
| Modulus Range | 0.5 / 0.75 / 0.8 / 1 / 1.2 / 1.25 / 1.5 / 1.7 / 1.75 / 2 / 2.2 / 2.25 / 2.5 / 2.7 / 3 / 3.2 / 4 / 5 |
| Tooth Count (Pinion + Ring) | 12T–160T per gear (see variant options) |
| Gear Ratio Options | 1:1.5 / 1:2 / 1:3 / 1:4 / 1:5 / 1:6 / 1:7 / 1:8 |
| Mesh Angle | 90° |
| Material | Metal alloy |
| Surface Finish | Natural metallic |
| Bore Diameter | See variant options |
| Hub / Face Width | See variant options |
| Gear Standard | Metric modulus (ISO) |
| Package Contents | 1 Pair (pinion + ring gear) or 1 PCS (see variant options) |
| Weight | See variant options |
Modulus (Mod) is the fundamental size parameter of a gear — it equals the pitch diameter divided by the number of teeth. For light-duty robotics and small mechanisms, Mod 0.5–1 is typical. For medium-duty CNC or actuator drives, Mod 1.5–2.5 is common. Heavy-duty or large-diameter applications generally use Mod 3 and above. Both gears in a meshing pair must share the same modulus.
The gear ratio determines how much the output speed is reduced (and torque multiplied) relative to the input. A 1:2 ratio halves the output speed and doubles the torque. A 1:5 ratio reduces speed to one-fifth while multiplying torque fivefold. Choose based on your motor's RPM and the output speed or torque your application requires.
Bore diameter varies by modulus and tooth count. Please check the specific variant's bore dimension in the variant selector or contact us to confirm before ordering. If your shaft diameter does not match the standard bore, the gear can typically be re-bored by a local machine shop.
These gears are machined from metal alloy, which provides significantly greater strength and wear resistance than plastic or nylon alternatives. They are suitable for continuous-duty mechanical drives within their rated load range. For very high-torque or high-speed industrial applications, please contact us to confirm suitability for your specific load conditions.
The gears feature a natural metallic finish without additional coating. For indoor or dry environments this is generally adequate. For humid, wet, or chemically exposed environments, we recommend applying a light machine oil or grease to the gear teeth during installation and periodically during service to prevent surface oxidation.
For two bevel gears to mesh correctly they must share the same modulus and be designed for the same pressure angle (typically 20°). If your existing gear matches these parameters and the tooth count combination gives your desired ratio, it is possible to use a single gear from this listing. However, we recommend purchasing a matched pair to ensure consistent tooth geometry and optimal meshing performance.
"1 Pair" includes both the pinion (smaller gear) and the ring gear (larger gear) as a matched set — everything you need for one right-angle drive stage. "1 PCS" means a single gear only, which is useful if you need a replacement for one half of an existing pair or are building a custom assembly where you already have the mating gear.
