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When your drive system demands a reliable 90° direction change without backlash-prone slop, engineers and builders reach for a properly spec'd stainless steel bevel gear. These module 1.5 miter gears are designed for makers, robotics integrators, CNC builders, and mechanical engineers who need a matched 1:1 pair that holds up under cyclic load and resists corrosion in demanding environments.
Each gear is machined from stainless steel and conforms to Module 1.5 (tooth pitch = 1.5 mm, ~0.059 in). Available in 20-tooth (pitch diameter 30 mm / 1.18 in), 25-tooth (pitch diameter 37.5 mm / 1.48 in), and 30-tooth (pitch diameter 45 mm / 1.77 in) configurations. Bore options span 8 mm to 20 mm (0.31–0.79 in), with keyway variants (4 mm or 5 mm or 6 mm keyway depending on bore) for positive shaft locking. Sold individually or as a matched 2-piece miter pair.
Typical use cases include right-angle gearbox assemblies for CNC router axis drives, bevel gear sets for robotic arm joints requiring 90° torque redirection, and miter gear pairs in custom conveyor or indexing table builds where a stainless steel bevel gear module 1.5 specification is required for corrosion resistance.
| Material | Stainless Steel |
|---|---|
| Module | 1.5 |
| Pressure Angle | 20° |
| Shaft Angle | 90° |
| Gear Ratio | 1:1 (Miter) |
| Available Tooth Counts | 20T / 25T / 30T |
| Pitch Diameter (20T) | 30 mm (1.18 in) |
| Pitch Diameter (25T) | 37.5 mm (1.48 in) |
| Pitch Diameter (30T) | 45 mm (1.77 in) |
| Bore Size Options | 8 / 10 / 12 / 14 / 15 / 16 / 18 / 20 mm |
| Keyway Options | 4 mm / 5 mm / 6 mm (bore-dependent; see variant options) |
| Face Width | See variant options |
| Surface Finish | See variant options |
| Quantity per Order | 1 pcs or 2 pcs (select above) |
All three options produce a 1:1 ratio at 90°, so the choice comes down to pitch diameter and load capacity. A 20-tooth gear has a smaller pitch diameter (30 mm) and is suited for compact assemblies with moderate torque. A 25-tooth gear (37.5 mm PD) balances size and strength for most general-purpose builds. A 30-tooth gear (45 mm PD) offers the largest contact area and is preferred when torque loads are higher or when smoother meshing at speed is a priority.
Yes — a functional 90° miter set requires two matching gears of the same tooth count. Select the "2 pcs" quantity option to receive both gears in one order. If you already have one gear and need a replacement, the "1 pcs" option is available. Both gears in a pair must be the same module (1.5) and the same tooth count for correct mesh.
A plain bore (e.g., 10 mm, 12 mm) relies on a set screw or press fit to secure the gear to the shaft. A keyway bore (e.g., 10 mm + 4 mm keyway) includes a machined slot that accepts a standard key, providing a positive mechanical lock that prevents rotational slip under reversing or high-torque loads. For applications with cyclic or shock loading, keyway variants are strongly recommended.
Stainless steel offers good tensile strength (typically 515–620 MPa for 304-grade) combined with corrosion resistance, making it suitable for light-to-medium duty power transmission in environments where rust or chemical exposure is a concern. For very high-torque or heavy industrial applications, confirm your torque requirements against the gear's rated capacity. Contact us if you need specific load data for your use case.
Yes, provided the other gear is also Module 1.5 with the same tooth count and a 20° pressure angle — the standard for metric bevel gears. Module is the fundamental compatibility parameter: gears of different modules will not mesh correctly regardless of tooth count. Always verify module, pressure angle, and shaft angle (90°) before mixing gears from different sources.
Keyway size is determined by shaft diameter and follows standard metric key standards (DIN 6885 / ISO 773). As a general guide: 8–10 mm shafts typically use a 3×3 mm or 4×4 mm key; 12–14 mm shafts use a 4×4 mm key; 15–18 mm shafts use a 5×5 mm key; 20 mm shafts use a 6×6 mm key. The keyway variants listed in our options (4 mm, 5 mm, 6 mm) refer to the keyway width. Match the keyway width to your shaft's existing key slot, or machine a new slot to the appropriate standard.
Stainless steel construction provides corrosion resistance suitable for humid or washdown environments. However, food-grade certification depends on additional factors including lubricant type, surface finish, and regulatory requirements specific to your region and application. Contact us to confirm suitability for your specific food-processing or sanitary environment before ordering.
