Internal & External Spline Gears

There are two types of splines: internal and external.  A spline is a series of teeth on a drive shaft that meshes with grooves in a (mating) gear. The surfaces of the spline and the gear allow for smooth transfer of force along a straight line and can generate higher torque due to the uniform distribution of the load across the teeth. Since splines can handle high rotation, they are commonly found in the automobile industry, the aerospace industry, and excavation. Our splines are precision rolled with straight sides; the bushings are broached. Spline bushings can be press-fitted or fastened to components which require relative axial motion with respect to the spline.

Performance considerations include number of teeth, length, pitch diameter, and face width; environmental factors include heat and corrosion. Our splines are available in carbon and stainless steel. Internal spline bushings are priced per piece. External spline bushings are priced per stock length. Discounts are available for large-quantity orders.

For engineering assistance, call on our application engineers; we'd really love to help! 1-800-819-8900

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Product NameCatalog PDFHalf Angle (°)LengthMajor DiameterMaterialMinor DiameterNo. Of TeethNominal SizeOutside Dia.Spline TypeStockPriceQtyAdd to Cart
A 1B26M122535 80501182.pdf22.5 Degree35 mm13.1 mmBrass11.2 mm161225 mmInternal Call Us
A 1B26M152540 80501182.pdf22.5 Degree40 mm16.4 mmBrass13.8 mm161525 mmInternal Call Us
A 1B26M173051 80501182.pdf22.5 Degree51 mm18.52 mmBrass15.72 mm161730 mmInternal Call Us
A 1C25-34401 81001254.pdf22.5 Degree12 Inch0.379 InchCarbon Steel0.311 Inch   External 19
A 1C25-34402 81001254.pdf22.5 Degree24 Inch0.379 InchCarbon Steel0.311 Inch   External Call Us
A 1C25-34403 81001254.pdf22.5 Degree36 Inch0.379 InchCarbon Steel0.311 Inch   External Call Us
A 1C25-34404 81001254.pdf22.5 Degree48 Inch0.379 InchCarbon Steel0.311 Inch   External 3
A 1C25-34406 81001254.pdf22.5 Degree72 Inch0.379 InchCarbon Steel0.311 Inch   External Call Us
A 1C25-46801 81001254.pdf22.5 Degree12 Inch0.505 InchCarbon Steel0.428 Inch   External 30
A 1C25-46802 81001254.pdf22.5 Degree24 Inch0.505 InchCarbon Steel0.428 Inch   External 3
A 1C25-46803 81001254.pdf22.5 Degree36 Inch0.505 InchCarbon Steel0.428 Inch   External Call Us
A 1C25-46804 81001254.pdf22.5 Degree48 Inch0.505 InchCarbon Steel0.428 Inch   External 2
A 1C25-46806 81001254.pdf22.5 Degree72 Inch0.505 InchCarbon Steel0.428 Inch   External Call Us
A 1C25-62502 81001254.pdf22.5 Degree24 Inch0.675 InchCarbon Steel0.578 Inch   External Call Us
A 1C25-62504 81001254.pdf22.5 Degree48 Inch0.675 InchCarbon Steel0.578 Inch   External Call Us
A 1C25-62506 81001254.pdf22.5 Degree72 Inch0.675 InchCarbon Steel0.578 Inch   External 8
A 1C25-75002 81001254.pdf22.5 Degree24 Inch0.807 InchCarbon Steel0.695 Inch   External 16.66
A 1C25-75004 81001254.pdf22.5 Degree48 Inch0.807 InchCarbon Steel0.695 Inch   External 2
A 1C25-75006 81001254.pdf22.5 Degree72 Inch0.807 InchCarbon Steel0.695 Inch   External Call Us
A 1C25M12050 80501182.pdf22.5 Degree500 mm12.8 mmCarbon Steel10.9 mm161212.8 mmExternal 1
A 1C25M12100 80501182.pdf22.5 Degree1000 mm12.8 mmCarbon Steel10.9 mm161212.8 mmExternal Call Us
A 1C25M12150 80501182.pdf22.5 Degree1500 mm12.8 mmCarbon Steel10.9 mm161212.8 mmExternal Call Us
A 1C25M15050 80501182.pdf22.5 Degree500 mm16.1 mmCarbon Steel13.5 mm161516.1 mmExternal Call Us
A 1C25M15100 80501182.pdf22.5 Degree1000 mm16.1 mmCarbon Steel13.5 mm161516.1 mmExternal Call Us
A 1C25M15150 80501182.pdf22.5 Degree1500 mm16.1 mmCarbon Steel13.5 mm161516.1 mmExternal Call Us
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