R2 Split Taper Bushings

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R2 Split Taper Bushings
This type of bushing has many advantages, including the ability to reduce shaft wear. First, the split tapered bushings are designed for cast iron bushing hole pulleys. You can find them on the same page as the pulleys. Whether you need them for small or large applications, these split tapered bushings are the best choice.
The split tapered bushing is made of tough malleable iron with two indestructible keys on the shaft and hub. Their high torque and true concentric clamps make them ideal for transmission components. As the name suggests, these bushings can be adjusted to fit various shaft sizes. And, because they're made of two different steel plates, they're easy to find.

Dimensions of the R2 Split Taper Bushings


  • Bushing Type: R2
  • Bore Size: 1-1/2"、1-11/16"、1-3/4"、1-3/8"、1-5/8"、1-7/16"、1-7/8"、2"、2-1/2"、2-1/4"、2-11/16"、2-5/8"、3"、3-1/2"、3-1/4"、3-1/8"、3-3/16"、3-5/8"、35mm、36mm、38mm、39mm、40mm、42mm、45mm、50mm、55mm、60mm、65mm、70mm、75mm、80mm、85mm、90mm
  • Dimension (L): 4-7/8"
  • Dimension (U): 5/8"
  • Dimension (T): 4-1/4"
  • Dimension (D): 4.000"
  • Dimension (H): 5-3/8"
  • Dimension (V): 4-5/8"
  • Dimension (W): 3/4"
  • Dimension (X): 4"
  • Dimension (Y): 1/4"
  • Dimension (R): 1/4"
  • Dimension (S): 9/32"
  • Cap Screws Amount: 3
  • Cap Screw Size: 3/8" X 1-3/4"
  • Wrench Torque: 348 LBS
  • Weight: 11 LBS


1. Make sure the bushing cone and interior of the driven product are clean and free of anti-seize lubricant.
2. Place the bushing into the sprocket or other part type that accepts bushings.
3. Loosely place the cap screws into the pull-up holes. The bushing remains loose to ensure a slip fit on the shaft.
4. Using the key on the shaft, slide the sprocket or other part type to the desired position on the shaft. Make sure the heads of the cap screws are accessible.
5. Align the sprockets or part types, alternately and incrementally tighten the screws until they are taut. Do not use extensions on the wrench handle, and do not allow sprockets or parts to be pulled out and contact the bushing flange. There should be a gap between the bushing flange and the sprocket at this point to ensure that the gap does not close.


1. Loosen and remove cap screws.
2. Insert the cap screws into the threaded removal holes.
3. Tighten the inserted screws until the sprocket or other part type is loose on the shaft.
4. Remove sprocket/part type from the shaft.

Advantages Of Split Taper Bushings

Split tapered bushings have several advantages over straight bore pulleys. First, the split bushing that fits snugly against the shaft avoids the problems caused by straight bore pulleys. For example, shafts of different diameters can easily wear out if the pulleys are too tight. The difference in shaft diameter is also more pronounced at 4 inches from the center of the shaft.
The most significant advantage of the split tapered bushing over other types of bushings is that it has the best concentricity. While polyurethane and rubber bushings are designed with greater precision, steel bushings provide less cushioning and noise reduction. Dual split barrels ensure true concentricity and positive clamping fit. Bore diameters vary from ten to ninety-five millimeters for optimal mechanical locking.
Another advantage of split tapered bushings is their ease of installation and removal. The flangeless design of the split taper takes up less space in designs where space is limited. Another advantage of the split tapered bushing is the ability to change the bore without retooling the machine. Also, they are easy to apply and remove.

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