Part No. 4-82-561U Yoke Shafts, 1550 Series, 1.750" Splines Dia, 16 Spline
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Specifications 4-82-561U · 1550 Series Yoke Shaft
- Part number
- 4-82-561U
- Part type
- Yoke Shaft
- Condition
- New
- Brand
- UDS
- Series
- 1550
- Splines count
- 16
- Splines diameter
- 1.750
- Splines length
- 3.000
- CL to end
- 9.750
- Weight
- 8.36 lb
Fitment
1550 series parts use 1.375" u-joint bearing caps on a 4.875" snap-ring-to-snap-ring width (nominal). Confirm the cap diameter on the mating yoke or joint before ordering.
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About 4-82-561U
4-82-561U -- 1550 Series Yoke Shaft
The 1550 series sits between the 1480 (1.375" bearing caps) and 1610 (1.875" caps) in the U-joint series strength hierarchy. The 1550-series yoke shaft uses a 1.750" spline diameter with 16 splines -- identical spline profile to the 1550-series 4-82-411-1U and 4-82-371U variants. The only differentiator between models in this series is CL-to-end and spline engagement length.
The 4-82-561U has 9.750" CL-to-end and 3.000" spline engagement. On wear inspection, 1550-series yoke shafts most commonly show fretting at the spline root rather than at the bearing surface -- caused by micro-motion under cyclic torque reversal. If the spline root shows discoloration or material transfer, replace the shaft and the mating sleeve together. This stub shaft is UDS manufactured.
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4-82-561U questions
What series is 4-82-561U?
4-82-561U is a 1550 series yoke shaft. Nominal 1550 dimensions are 1.375" bearing caps on a 4.875" snap-ring-to-snap-ring width. Measure the cap diameter on your old joint to confirm the series before ordering.
What spline count does 4-82-561U have?
4-82-561U has 16 splines on a 1.750" spline diameter. Count the splines on the output shaft and measure across the major diameter to confirm.