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When a right-angle power transfer is critical and misalignment is not an option, engineers and DIY builders alike need a bevel gear they can rely on. These 90° steel bevel gears are designed for hobbyists, robotics builders, CNC machine assemblers, and industrial automation technicians who demand accurate 1:1 torque transmission at a perpendicular axis without backlash-prone workarounds.
Each gear is machined from steel with a standard module (Mod) tooth profile. Available in module sizes 1M, 1.5M, 2M, 2.5M, and 3M, with tooth counts ranging from 15T to 40T. Pitch diameter varies by module and tooth count — for example, a 1M 20T gear has a pitch diameter of 20 mm (approx. 0.79 in), while a 3M 40T gear reaches 120 mm (approx. 4.72 in). Bore diameter and hub dimensions vary by variant; see variant options for exact figures.
Typical use cases include right-angle gearbox assemblies for CNC router axis drives, bevel gear pairs in robotic arm joints requiring 90-degree torque redirection, and custom mechanical transmission systems in agricultural or industrial equipment where compact perpendicular drives are needed.
| Gear Type | Bevel Gear (Straight Tooth) |
|---|---|
| Transmission Ratio | 1:1 |
| Shaft Angle | 90° |
| Module (Mod) | 1M / 1.5M / 2M / 2.5M / 3M (see variant options) |
| Tooth Count | 15T – 40T (see variant options) |
| Material | Steel |
| Pitch Diameter | See variant options |
| Bore Diameter | See variant options |
| Hub Length | See variant options |
| Surface Finish | See variant options |
| Quantity per Order | 1 piece |
Module size determines the tooth size and load capacity. Smaller modules (1M, 1.5M) suit light-duty or compact applications such as robotics and hobby CNC machines. Larger modules (2M, 2.5M, 3M) handle greater torque loads in medium-duty industrial or agricultural drives. Match the module to your mating gear — both gears in a pair must share the same module.
Since this is a 1:1 ratio gear set, both mating bevel gears should have the same tooth count. The tooth count affects the pitch diameter: pitch diameter = module × tooth count. Choose a tooth count that gives you the pitch diameter fitting your shaft center distance and housing geometry.
These gears are machined from steel, which provides solid mechanical strength for continuous-duty applications under moderate load. For heavy shock loads or high-speed applications, confirm the specific module and tooth count load ratings against your torque requirements. Lubrication is recommended for extended service life.
Steel bevel gears are susceptible to surface oxidation in humid or wet environments without protective treatment. For outdoor or corrosive environments, apply a suitable gear lubricant or anti-corrosion coating, or consider housing the gear assembly in a sealed enclosure to extend service life.
No. Bevel gears must be paired with the same module. Mixing modules (e.g., 1M with 1.5M) will result in incorrect tooth mesh, causing noise, accelerated wear, and potential gear failure. Always confirm both gears in your pair share the same module before ordering.
Bore diameter varies by module and tooth count variant. Please refer to the variant options or contact us to confirm the bore diameter for your selected specification before ordering. If a custom bore size is needed, consult with a local machinist for post-purchase boring.
A 1:1 bevel gear pair has equal tooth counts on both gears, transmitting speed and torque at the same ratio — no speed increase or reduction. A reduction bevel gear pair uses different tooth counts to change the speed/torque ratio. These gears are 1:1, making them ideal for direction-change drives where speed and torque must remain constant.
