Tsubaki 50JA16

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Bore Diameter1-1/4 in
Bushing TypeType JA QD
Chain Size#50
Hub Diameter2.063 in
Keyway Size1/4 x 1/8 in
Length Through Bore9/16 in
MaterialCarbon Steel
Number of Teeth16
Outside Diameter3.52 in
Pitch5/8 in
Pitch Diameter3.204 in
Screw Size5/16 in
TypeQD Bushed Type B


  • PTDA and CEMA Standard


Oil and Gas, Lumber, Mining, Primary Metals, Material Handling, Conveyor, Civil Engineering Projects, Machine Tool, Marine, Packaging Machinery, Pulp and Paper, Food Processing and Forestry

Additional Information

This type of sprocket is used in applications where higher working loads are prevalent and high clamp loading on the drive shaft is desirable. Sprockets with tapered bushings will fall into the QD, split-taper or Taper-Lock family. QD bushings are flanged and most commonly utilize large anchor bolts around the circumference of the flange to retain itself to the sprocket. However, this style of bushing is also available in a weld-on hub configuration. One of the primary advantages the QD bushing offers is its ease of installation and removal. It also provides superior clamp force and aligns the sprocket 90 deg to the drive shaft to assure proper alignment.

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