Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
When your mechanical build demands a reliable right-angle drive that won't corrode, strip, or slip under load, standard carbon steel gears fall short. Engineers, robotics builders, and CNC hobbyists working in wet, high-cycle, or precision environments need a bevel gear they can trust. These stainless steel umbrella bevel gears deliver a clean 90° mesh at a 1:1 ratio, making them a direct drop-in solution for shaft-to-shaft angle changes without complex gearbox assemblies.
Each stainless steel umbrella bevel gear is machined from corrosion-resistant stainless steel and is available in module sizes 1M, 1.5M, 2M, 2.5M, and 3M, with tooth counts ranging from 15 to 30 teeth. Bore diameters span 4 mm (0.16 in) to 30 mm (1.18 in), with keyway bore options (e.g., 8mm 3×1.4mm, 10mm 4×1.8mm, 14mm 5×2.3mm, 18mm 6×2.8mm, 25mm 8×3.3mm) available for positive torque transmission without set-screw slippage.
Typical use cases include right-angle drive shafts in DIY CNC routers and milling machines, rotary indexing tables and turntable mechanisms, robotics joint drives requiring compact 90° redirection, and agricultural or industrial automation equipment where corrosion resistance is critical.
Machined from corrosion-resistant stainless steel for durability in humid, wet, or chemically exposed environments — outlasting zinc or carbon steel alternatives.
Engineered for a true 90° shaft intersection with a 1:1 ratio, ensuring smooth, backlash-minimized power transfer between perpendicular shafts.
Available in 1M to 3M module sizes and 15 to 30 teeth configurations, covering a broad range of torque and speed requirements for hobbyist and light industrial use.
Plain bore (4–30mm) and keyway bore variants (e.g., 8mm 3×1.4mm through 30mm 8×3.3mm) allow secure shaft mounting with or without a key for positive torque lock.
Sold individually; two identical gears of the same module and tooth count mesh together at 90° — no separate pinion required for a 1:1 ratio drive.
Suited for CNC machines, robotics, rotary tables, conveyor drives, and automation rigs where a compact right-angle drive is needed without a dedicated gearbox.
| Material | Stainless Steel |
|---|---|
| Pressure Angle | 20° |
| Shaft Angle | 90° |
| Gear Ratio | 1:1 |
| Module | 1M / 1.5M / 2M / 2.5M / 3M (see variant options) |
| Number of Teeth | 15 / 20 / 25 / 30 (see variant options) |
| Bore Diameter | 4mm – 30mm (see variant options) |
| Keyway Options | 3×1.4mm / 4×1.8mm / 5×2.3mm / 6×2.8mm / 8×3.3mm (see variant options) |
| Surface Finish | See variant options |
| Weight | See variant options |
Module size determines the tooth size and load capacity. Larger modules (e.g., 2M, 3M) handle higher torque but result in a larger gear diameter. Match the module to your existing gear train or select based on the torque your shaft needs to transmit — higher torque requires a larger module. For light robotics or small CNC builds, 1M–1.5M is typically sufficient; for heavier drives, 2M–3M is recommended.
Yes. These gears are sold individually. For a 1:1 ratio 90° drive, you need two gears of the same module and the same tooth count. Both gears mesh together at a 90° shaft angle. Select the same variant (e.g., two units of 1.5M 20 Teeth) and order a quantity of 2.
A plain bore relies on a set screw or press fit to secure the gear to the shaft. A keyway bore (e.g., 10mm 4×1.8mm) includes a machined slot that accepts a standard key, providing a positive mechanical lock that prevents rotational slippage under high torque or reversing loads. If your application involves significant torque or direction changes, a keyway bore is the more reliable choice.
Yes. Stainless steel offers substantially better corrosion resistance than carbon steel or zinc alloy gears. These gears are suitable for humid environments, occasional water exposure, and light chemical contact. For continuous immersion or highly aggressive chemical environments, verify compatibility with your specific conditions before use.
Measure your shaft diameter with a caliper. Select the bore option that matches your shaft diameter exactly. For keyway bores, also confirm that the keyway dimensions (width × depth, e.g., 5×2.3mm) match the key you plan to use. A bore that is too large will cause runout and vibration; a bore that is too small will not fit.
These gears are designed for light to medium-duty mechanical drives. They are suitable for moderate RPM applications typical of CNC routers, robotics joints, and rotary tables. For very high-speed or high-load industrial applications, consult the specific module's rated pitch line velocity and ensure adequate lubrication. Contact us to confirm suitability for your specific speed and load requirements.
A light gear grease or machine oil applied to the tooth faces is recommended for most applications. For enclosed gearboxes, a gear oil appropriate for the operating temperature range works well. Avoid dry running under load, as this accelerates tooth wear even on stainless steel gears.
🛒 Select your module type and bore size above, then add to cart.
