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• keyway notch and backlash between keys and keyways creates high stress concentrations which can cause premature hub and shaft failure
• B-LOC fittings with uniform mechanical fits produce lower, more constant stress distribution
• permits higher torque, axial load and bending moment
• requires no keys or splines
• no shaft fretting even under reversing loads or shock conditions
• shaft diameters can be reduced in some applications, allowing the use of more economical bearings and other components
• B-LOC keyless fittings allow complete adjustability with the turn of a screw
• the RASP/B-LOC keyless sprocket system will allow you to install your mechanical drive with a minimal effort and maintain it economically

• RASP offers a split hourglass design using B-LOC keyless fittings as an alternate solution
  • no keys
  • no backlash
  • no location problems
• use the revolutionary RASP/B-LOC split sprockets to install new sprockets on existing captured shaft journals