For Motion Type For Motion Type |
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 | Rotary |
 | Linear and Rotary |
Material Material |
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For Maximum Shaft Diameter For Maximum Shaft Diameter |
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Hardness Hardness |
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Mechanical Finish Mechanical Finish |
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Yield Strength Yield Strength |
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Surface Smoothness Surface Smoothness |
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Specifications Met Specifications Met |
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About Shafts
More
About Gears
More
Splined Rotary Shafts
With a gear-shaped profile on one end, these shafts transmit high rotational loads—good for hydraulic systems, machine tools, and other high-torque applications. Compared to keyed shafts, they last longer, handle higher torque, and do not require as tight of a fit. Shafts are 1045 carbon steel, a general purpose shafting material that balances high strength and good machinability. They are 48" long and have six 12"-long splined grooves on one end. The splined end meets SAE dimensional standards for splined shafts. The straight end is turned, ground, and polished for a smooth, round finish. The edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation.
Splined End | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dia. | Lg. | No. of Splines | Straight End Dia. | Lg. | Edge Type | Hardness Rating | Hardness | Yield Strength, psi | Specifications Met | Each | |
Inch—1045 Carbon Steel | |||||||||||
| 3/4" | 12" | 6 | 1" | 48" | Chamfered | Medium | Rockwell C15 | 85,000 | SAE Standards | 000000 | 0000000 |
| 1" | 12" | 6 | 1.5" | 48" | Chamfered | Medium | Rockwell C15 | 85,000 | SAE Standards | 000000 | 000000 |
| 1 1/2" | 12" | 6 | 2" | 48" | Chamfered | Medium | Rockwell C15 | 85,000 | SAE Standards | 000000 | 000000 |
Splined Shafts for Rotary and Linear Motion
Grooves on the surface of these shafts transmit rotary power while allowing bearings to move freely along the length of the shaft. The edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.
Four Splines
Shafts with four splines work with ball spline bearings, which create relatively little friction. They're commonly found in robotic and other automated systems that require complex, fast movements. They don't transmit as much torque as shafts with six splines.
All four-spline shafts are 52100 alloy steel for high strength. They're case-hardened to increase hardness and wear resistance on the surface of the shaft while allowing the center to remain soft for absorbing stresses caused by shifting loads.
Some of our four-spline shafts have a step-down end, which has been ground smooth and round like a standard shaft. Mount bearings, gears, and other round-bore components.
Six Splines
Large, evenly spaced splines transmit high-torque loads, such as those found in hydraulic systems, drivetrains, and machine tools. These shafts work with plain bearings, which means they're not meant for high-speed positioning applications. Made of 1045 steel, they're strong but also machinable, so you can modify the ends to fit into your mounting fixtures. All meet ISO 14-B (formerly DIN 5463-B) to ensure they work with bearings that meet ISO 14-A.
Step | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dia., mm | Dia. Tolerance, mm | Lg., mm | Lg. Tolerance, mm | Spline Lg., mm | Dia., mm | Dia. Tolerance, mm | Lg., mm | Surface Smoothness, microinch | Edge Type | Yield Strength, psi | Each | |
Splined End × Splined End | ||||||||||||
| 6 | -0.012 to 0 | 150 | -0.7874 to 0.7874 | 150 | __ | __ | __ | 16 | Chamfered | 128,000 | 00000000 | 0000000 |
| 8 | -0.015 to 0 | 150 | -0.7874 to 0.7874 | 150 | __ | __ | __ | 16 | Chamfered | 128,000 | 00000000 | 00000 |
| 10 | -0.015 to 0 | 200 | -0.7874 to 0.7874 | 200 | __ | __ | __ | 16 | Chamfered | 128,000 | 00000000 | 00000 |
Splined End × Step-Down End | ||||||||||||
| 18.2 | -0.021 to 0 | 350 | -0.7874 to 0.7874 | 200 | 15 | -0.018 to 0 | 150 | 16 | Chamfered | 128,000 | 00000000 | 000000 |
| 23 | -0.021 to 0 | 350 | -0.7874 to 0.7874 | 200 | 20 | -0.021 to 0 | 150 | 16 | Chamfered | 128,000 | 00000000 | 000000 |
| 28 | -0.021 to 0 | 450 | -0.7874 to 0.7874 | 300 | 25 | -0.021 to 0 | 150 | 16 | Chamfered | 128,000 | 00000000 | 000000 |
| 37.4 | -0.025 to 0 | 550 | -0.7874 to 0.7874 | 400 | 30 | -0.021 to 0 | 150 | 16 | Chamfered | 128,000 | 00000000 | 000000 |
| Dia., mm | Dia. Tolerance, mm | Lg., mm | Lg. Tolerance | Spline Lg., mm | Surface Smoothness | Edge Type | Yield Strength | Specifications Met | Each | |
Splined End × Splined End | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 20 | -0.07 to -0.027 | 1,000 | Not Rated | 1,000 | Not Rated | Chamfered | Not Rated | ISO 14-B, DIN 5463-B | 000000000 | 0000000 |
| 25 | -0.07 to -0.027 | 1,000 | Not Rated | 1,000 | Not Rated | Chamfered | Not Rated | ISO 14-B, DIN 5463-B | 000000000 | 000000 |
| 32 | -0.07 to -0.027 | 1,000 | Not Rated | 1,000 | Not Rated | Chamfered | Not Rated | ISO 14-B, DIN 5463-B | 000000000 | 000000 |
Gear Rod Stock
Machine your own gears to fit the exact face width and shaft diameter required. Rod stock has teeth with a 20° pressure angle, the current industry standard. 20° pressure angle gears have thicker, stronger teeth than 14½° pressure angle gears. Teeth are not hardened so you can machine and harden them to fit your application. Hardening a gear’s teeth increases its wear resistance. Also known as spur gear rod stock.
For gears to mesh correctly, they must have the same pressure angle and pitch.
For technical drawings and 3-D models, click on a part number.
| Pitch | Number of Teeth | Pitch Dia. | OD | Lg. | For Shaft Dia. | Material | Each | |
| 32 | 12 | 0.375" | 0.44" | 1 ft. | 1/32"-7/32" | 1215 Carbon Steel | 0000000 | 000000 |
| 32 | 20 | 0.625" | 0.69" | 1 ft. | 1/32"-11/32" | 1215 Carbon Steel | 0000000 | 00000 |
| 32 | 32 | 1" | 1.06" | 1 ft. | 1/32"-17/32" | 1215 Carbon Steel | 0000000 | 00000 |
| 32 | 40 | 1.25" | 1.31" | 1 ft. | 1/32"-21/32" | 1215 Carbon Steel | 0000000 | 00000 |
| 24 | 12 | 0.5" | 0.58" | 1 ft. | 1/32"-9/32" | 1215 Carbon Steel | 0000000 | 00000 |
| 24 | 16 | 0.667" | 0.75" | 1 ft. | 1/32"-3/8" | 1215 Carbon Steel | 0000000 | 00000 |
| 24 | 20 | 0.833" | 0.92" | 1 ft. | 1/32"-15/32" | 1215 Carbon Steel | 0000000 | 00000 |
| 24 | 24 | 1" | 1.08" | 1 ft. | 1/32"-17/32" | 1215 Carbon Steel | 0000000 | 00000 |
| 20 | 12 | 0.6" | 0.7" | 1 ft. | 1/32"-11/32" | 1215 Carbon Steel | 0000000 | 00000 |
| 20 | 16 | 0.8" | 0.9" | 1 ft. | 1/32"-7/16" | 1215 Carbon Steel | 0000000 | 00000 |
| 20 | 20 | 1" | 1.1" | 1 ft. | 1/32"-9/16" | 1215 Carbon Steel | 0000000 | 00000 |
| 16 | 12 | 0.75" | 0.88" | 1 ft. | 1/32"-7/16" | 1215 Carbon Steel | 0000000 | 00000 |
| 16 | 16 | 1" | 1.13" | 1 ft. | 1/32"-9/16" | 1215 Carbon Steel | 0000000 | 00000 |
| 16 | 20 | 1.25" | 1.38" | 1 ft. | 1/32"-11/16" | 1215 Carbon Steel | 0000000 | 00000 |
| 16 | 24 | 1.5" | 1.63" | 1 ft. | 1/32"-13/16" | 1215 Carbon Steel | 0000000 | 00000 |
| 12 | 12 | 1" | 1.17" | 1 ft. | 1/32"-19/32" | 1215 Carbon Steel | 0000000 | 00000 |
| 12 | 16 | 1.333" | 1.5" | 1 ft. | 1/32"-3/4" | 1215 Carbon Steel | 0000000 | 00000 |
| 12 | 24 | 2" | 2.17" | 1 ft. | 1/32"-1 3/32" | 1215 Carbon Steel | 0000000 | 000000 |