Description & Specifications
Nitro splined sprocket hub with a 1-3/8" X 21 spline bore is a premium quality, precision machined hub. All X series hubs are manufactured from 1020CD carbon steel and finished with black oxide for corrosion resistance. Our 1-3/8" X 21 splined weld on hub is compatible any of our X series weld on sprockets.
1-3/8" X 21 Spline Hub Dimensions
- Hub Series:X Series
- Bore (B):1-3/8'' X 21 Spline
- Outside Diameter (D):2.500''
- Step Diameter (SD):2.000''
- Length Thru Bore (W):1.437"
- Keyway Size:None
- Step Width (A1):0.4375''
- Material:1020CD
- No. Of Setscrews:1
- Type Of Finish:Black Oxide
All dimensions listed are nominal values.
Installation
Welding Instructions
It's recommended to use Low Hydrogen Electrodes for welding weld on sprockets & hubs. Below is a diagram showing the location to weld on small vs large diameter sprockets.
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