Vickers | 238929
238929
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The 238929 component is supplied by Vickers as part of the Vickers Hydraulic Accessories series and serves as a spline interface for rotary elements in hydraulic automation systems. It employs a 16/32 diametral pitch that balances strength with tooth density, and its major diameter of 0.873 in defines the outer size of the mating area. Thirteen spline teeth are cut on an involute profile to maintain constant angular velocity during power transfer, and the form follows the SAE B standard so it pairs with matching hydraulic hardware. A 30° pressure angle is selected to support the radial load typical of pump drives while reducing local tooth stress.
The spline has a pitch diameter of 0.8125 in, setting the effective circle where torque is carried between mating parts. An extension length of 1.75 in provides adequate engagement depth for secure coupling inside pump housings. A flat root design lowers stress concentrations at the tooth base, and a major-diameter fit governs concentric alignment without relying on flank contact. The unit weighs 1.21 lb, allowing installation without additional support hardware.
Technical Specifications
Diametral Pitch
16/32 DP
Extension Length
1.75 in
Major Diameter
0.873 in
Pitch Diameter
0.8125 in
Pressure Angle
30°
Root Type
Flat Root
Spline Fit
Major Diameter Fit
Spline Standard
SAE B
Spline Teeth
13
Tooth Profile
Involute
Weight
1.21 lb
1620 Old Apex Road
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