Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
When your drivetrain demands a reliable 90-degree direction change without sacrificing torque or rotational accuracy, a poorly matched miter gear becomes the weakest link in the system. Engineers, robotics builders, and machine designers who need repeatable, low-backlash right-angle transmission rely on dimensionally consistent bevel gears with a verified bore fit — not generic hardware that requires rework at the bench.
This Module 1.5 bevel gear is machined from 40Cr chrome alloy steel, a through-hardened material known for its tensile strength and wear resistance under cyclic loading. The gear features a 1:1 ratio with 20 teeth, a standard Module 1.5 tooth profile, and is available with bore diameters ranging from 8 mm (0.315 in) to 16 mm (0.630 in). Select bore sizes include an optional 4 mm keyway for positive shaft locking without set-screw slippage.
Typical applications include CNC router axis drives requiring a compact right-angle gearset, DIY gearbox builds for electric go-karts and motorized platforms, and industrial automation prototypes where a miter gear pair must transmit motion between perpendicular shafts. The 20-tooth Module 1.5 configuration is also a common replacement for worn miter gears in light conveyor and packaging machinery.
Standard Module 1.5 tooth geometry ensures interchangeability with any matching M1.5 bevel gear. The 20-tooth count delivers a true 1:1 speed and torque ratio for direct right-angle transmission.
40Cr (chromium-molybdenum alloy steel) provides significantly higher tensile strength and surface hardness than mild steel, reducing tooth wear under sustained mesh loads in both continuous and intermittent duty cycles.
Eight bore diameter options — 8, 10, 12, 14, 15, and 16 mm — cover the most common shaft sizes used in hobby CNC, robotics, and light industrial builds, eliminating the need for custom boring.
Keyway variants (10 mm + 4 mm KW and 12 mm + 4 mm KW) allow the gear to be secured with a standard Woodruff or parallel key, preventing rotational slip under reversing or shock loads where set screws alone may loosen.
Order 1 to 5 pieces per transaction to build a matched miter gear pair, stock spares for a production line, or equip multiple axes in a multi-stage gearbox — all at a consistent per-unit price.
The 1:1 miter configuration transmits rotational speed and torque unchanged across a 90-degree shaft intersection, making it ideal for applications where output RPM must exactly match input RPM on a perpendicular axis.
| Module | 1.5 |
|---|---|
| Number of Teeth | 20 |
| Gear Ratio | 1:1 |
| Pressure Angle | 20° |
| Material | 40Cr Chrome Alloy Steel |
| Bore Diameter Options | 8 mm / 10 mm / 12 mm / 14 mm / 15 mm / 16 mm |
| Keyway Options | 10 mm + 4 mm Keyway / 12 mm + 4 mm Keyway |
| Pitch Cone Angle | 45° |
| Outer Diameter (Reference) | See variant options |
| Face Width (Reference) | See variant options |
| Hub Diameter | See variant options |
| Surface Treatment | See variant options |
| Quantity per Order | 1 / 2 / 3 / 4 / 5 pcs |
Measure your shaft diameter with a caliper and select the matching bore option (8, 10, 12, 14, 15, or 16 mm). For keyed shafts, choose the keyway variant (10 mm + 4 mm KW or 12 mm + 4 mm KW) to ensure the key slot aligns. If your shaft is metric and falls between listed sizes, contact us to confirm the closest fit before ordering.
For light-duty or unidirectional loads, a set screw bore is typically sufficient. For reversing loads, shock loads, or applications where the gear must transmit significant torque without any rotational slip, the keyway variant provides a mechanically positive connection that a set screw alone cannot reliably maintain over time.
40Cr chrome alloy steel has a tensile strength typically in the range of 900–1,100 MPa after heat treatment, making it substantially stronger than mild steel (Q235/S235). Exact load ratings depend on operating speed, lubrication, and mounting precision. For critical load calculations, apply standard AGMA or ISO 10300 bevel gear rating methods using the gear's module and tooth geometry.
40Cr steel is not inherently stainless. For outdoor or high-humidity environments, apply a light machine oil or grease to the tooth faces and bore, or consider a protective coating. If corrosion resistance is a primary requirement, contact us to discuss alternative material options.
Yes — Module 1.5 bevel gears with the same tooth count (20T), pressure angle (20°), and pitch cone angle (45°) are interchangeable regardless of brand. For a 1:1 miter pair, both gears must have identical tooth counts. Mixing modules (e.g., pairing a Module 1.5 with a Module 1.0 gear) will result in incorrect mesh and accelerated wear.
A functional right-angle drive requires two matched miter gears — one on each perpendicular shaft. If you are replacing a single worn gear in an existing assembly, one piece is sufficient. For a new build, order at least 2 pcs (or use the multi-pack options) to receive a matched pair with consistent tooth geometry.
For most applications, a medium-viscosity gear grease (NLGI Grade 1 or 2) applied to the tooth faces at assembly is sufficient. In high-speed or enclosed gearbox applications, an ISO VG 220 gear oil provides better film strength. Re-lubricate at regular service intervals based on operating hours and load conditions.
