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When your build demands a reliable 90° power transfer without slop or backlash, a mismatched or worn bevel gear becomes the weakest link in the entire drivetrain. Engineers, robotics builders, and DIY machine makers who need repeatable, low-noise right-angle transmission choose a properly spec'd miter gear pair — and that starts with getting the module and tooth count exactly right.
These 1.5 module bevel gears are machined from carbon steel and are available in single-gear options spanning 15 to 40 teeth, as well as matched miter pairs (e.g., 15T+30T, 16T+32T, 18T+36T, 20T+40T) for a true 1:1 or 2:1 ratio drive. Bore diameter and hub dimensions vary by tooth count — typically 5–12 mm bore for smaller gears and 8–20 mm for larger ones. Tooth width and pitch cone angle are precision-ground to DIN/AGMA standards for smooth mesh engagement.
Typical use cases include: right-angle gearbox assemblies for CNC router Z-axis drives, bevel gear pairs in custom differential mechanisms for robotics platforms, and 1:1 miter gear sets for perpendicular shaft connections in automated conveyor or indexing systems.
| Module | 1.5M |
|---|---|
| Tooth Count Range | 15T – 40T (see variant options) |
| Gear Ratio | 1:1 (single gears); 2:1 (matched pairs) |
| Shaft Angle | 90° |
| Material | Carbon Steel |
| Pressure Angle | 20° (standard) |
| Bore Diameter | See variant options |
| Hub Diameter | See variant options |
| Overall Diameter | See variant options |
| Finish | Natural / uncoated machined steel |
| Sold As | Single gear or matched pair (see variant options) |
For a 1:1 right-angle drive (miter gear), select two gears with the same tooth count — for example, two 20T gears. For a 2:1 ratio, choose a matched pair such as 20T+40T. The tooth count affects the pitch diameter and the physical size of the gear, so confirm your available shaft spacing and housing dimensions before selecting.
Module (M) is the standardized unit describing the size of gear teeth — specifically the ratio of pitch diameter to tooth count. A 1.5M gear has teeth sized at 1.5 mm per unit of tooth count. Two bevel gears must share the same module to mesh correctly. Mixing modules (e.g., 1.5M with 2M) will result in improper engagement and rapid wear.
These carbon steel bevel gears are suitable for moderate-duty motorized applications such as small CNC machines, robotics actuators, and automated equipment. For continuous high-torque or high-RPM industrial use, verify the specific load rating against your application requirements. Contact us to confirm suitability for heavy-duty use cases.
These gears are machined from carbon steel with a natural uncoated finish, which provides good mechanical strength but limited inherent corrosion resistance. For use in humid or outdoor environments, we recommend applying a light machine oil or grease coating during installation and periodically during service. For corrosive environments, consider stainless steel alternatives.
Bore diameter varies by tooth count — smaller gears (15–20T) typically have bores in the 5–8 mm range, while larger gears (25–40T) may have bores from 8–16 mm. Please check the specific variant's dimensional drawing or contact us to confirm the exact bore size for your selected tooth count before ordering.
Both options are available. Single gears (e.g., 1.5M 20 Zähne) are listed for replacement or custom pairing. Pre-matched miter pairs (e.g., 1.5M 20 Zähne+40 Zähne) are also available as a single variant for convenience. Select the variant that matches your need from the dropdown above.
Installation typically requires a lathe or press to fit the gear onto the shaft, a keyway or set screw for securing it, and basic mechanical assembly skills. Ensure the shaft diameter matches the bore, and align the pitch cones correctly for smooth mesh. A dial indicator is recommended for checking runout on precision builds.
