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When a right-angle power transfer demands accuracy and durability, a mismatched or poorly finished bevel gear set becomes the weakest link in the entire drivetrain. Engineers, machinists, and serious DIY builders working on robotics, CNC machines, conveyor systems, and custom gearboxes need a paired bevel gear set that holds tight tolerances under load — without the guesswork of sourcing pinion and wheel separately.
Each set in this listing is a matched 1:2 ratio bevel gear pair machined from 45# medium-carbon steel, delivering a balance of tensile strength and machinability. Available in modulus 1.5, 2, 2.5, and 3, with tooth count pairings ranging from 15T+30T up to 18T+54T (approximately 0.59 in to 2.13 in pitch diameter range depending on modulus). The 90° shaft angle configuration allows direct right-angle power transmission between intersecting shafts.
Typical use cases include: right-angle gearbox assemblies for CNC router Z-axis drives, bevel gear sets for robotic arm joint actuation, and custom industrial conveyor corner drives requiring a reliable 2:1 speed reduction bevel gear pair.
| Material | 45# Medium-Carbon Steel |
|---|---|
| Shaft Angle | 90° |
| Gear Ratio | 1:2 |
| Modulus Options | 1.5 / 2 / 2.5 / 3 |
| Tooth Count Pairings | 15T+30T / 18T+36T / 20T+40T / 16T+32T / 15T+45T / 16T+48T / 18T+54T |
| Pitch Diameter (Pinion) | See variant options |
| Pitch Diameter (Wheel) | See variant options |
| Bore Diameter | See variant options |
| Face Width | See variant options |
| Surface Finish | See variant options |
| Quantity per Set | 1 PCS (paired set of pinion + wheel) |
| Weight | See variant options |
Modulus determines the size and strength of each gear tooth. A higher modulus (e.g., 3) produces larger, stronger teeth suited for higher torque and slower speed applications. A lower modulus (e.g., 1.5) gives finer teeth for lighter loads and higher speeds. Match the modulus to your load requirements and ensure both the pinion and wheel share the same modulus — this listing sells matched pairs, so the modulus is consistent within each set.
Each listing variant is a matched pair — you receive both the pinion (smaller gear) and the wheel (larger gear) together as one set. The tooth counts shown (e.g., 15T + 30T) represent the pinion and wheel respectively, pre-matched for correct 1:2 ratio mesh.
These bevel gear pairs are designed for a 90° shaft angle — meaning the input and output shafts intersect at a right angle. They are not suitable for parallel shaft or non-90° configurations without engineering modification.
45# steel provides good mechanical strength but has limited inherent corrosion resistance. For outdoor, humid, or wet environments, we recommend applying a suitable lubricant or protective coating after installation. If corrosion resistance is a primary requirement, contact us to confirm whether a treated or alternative material option is available.
Bore diameter varies by modulus and tooth count combination. Please check the variant detail images or contact us with your shaft diameter before ordering. Standard bore sizes for these modulus ranges typically fall between 6mm and 20mm (~0.24"–0.79"), but confirm against your specific variant selection.
Yes. These 1:2 ratio bevel gear pairs are well-suited for CNC Z-axis right-angle drives, robotic joint actuators, and similar precision mechanical assemblies where a 90° power transfer and 2:1 speed reduction are required. Ensure the selected modulus and tooth count match your torque and speed specifications.
All variants in this listing are 1:2 ratio pairs (e.g., 15T+30T, 18T+36T, 20T+40T). Some tooth count pairings such as 15T+45T, 16T+48T, and 18T+54T represent a 1:3 ratio — please verify the tooth count pairing you select matches your intended gear ratio. The listing title covers the full tooth count range available across all variants.
