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The Mechanical PTO is a lever-actuated over-center clutch with a shaft and bearings mounted in a rigid iron bell housing. Designed for both inline and sideloaded applications on internal combustion engines with compatible SAE industrial flywheel and flywheel housings. The WPT® Mechanical Power Take-Off is available in a wide range of sizes for OEM’s applications and aftermarket retrofits.
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Mechanical Power Take-Offs (MPTO) Units

4-5/8 Inch (in) Dimension (D) Mechanical Power Take-Off (PTO) Unit

Mechanical Power Take-Offs (MPTO) Units

117.5 Millimeter (mm) Dimension (D) Mechanical Power Take-Off (PTO) Unit

Mechanical Power Take-Offs (MPTO) Units

5 Inch (in) Dimension (D) Mechanical Power Take-Off (PTO) Unit

Mechanical Power Take-Offs (MPTO) Units

5-5/8 Inch (in) Dimension (D) Mechanical Power Take-Off (PTO) Unit

Mechanical Power Take-Offs (MPTO) Units

5-3/4 Inch (in) Dimension (D) Mechanical Power Take-Off (PTO) Unit
Description N/A The Mechanical PTO is a lever-actuated over-center clutch with a shaft and bearings mounted in a rigid iron bell housing. Designed for both inline and sideloaded applications on internal combustion engines with compatible SAE industrial flywheel and flywheel housings. The WPT® Mechanical Power Take-Off is available in a wide range of sizes for OEM’s applications and aftermarket retrofits.
Brands N/A WPT®
SAE Housings N/A 4 5 N/A 4 5 N/A 3 4 5 N/A 3 4 N/A 1 2 3
Dimension - A N/A 7-1/8 in181 mm N/A 7-1/8 in181 mm N/A 7-1/8 in181 mm N/A 8-5/8 in219.1 mm N/A 9-1/4 in235 mm
Dimension - B N/A 3-1/2 in88.9 mm N/A 3-1/2 in88.9 mm N/A 6 in152.4 mm N/A 5-1/2 in139.7 mm N/A 6-1/2 in165.1 mm
Diameter N/A 1.438 in36.53 mm N/A 1.438 in36.53 mm N/A 1.750 in44.45 mm N/A 2.250 in57.15 mm N/A 2.250 in57.15 mm
Keyway N/A 3/8 x 3/16 in N/A 3/8 x 3/16 in N/A 1/2 x 1/4 in N/A 5/8 x 5/16 in N/A 5/8 x 5/16 in
Dimension - C N/A 2 1/8 in54 mm N/A 2 1/8 in54 mm N/A 2 1/4 in57.2 mm N/A 3 3/4 in95.3 mm N/A 3 3/4 in95.3 mm
Dimension - D N/A 4-5/8 in117.5 mm N/A 4-5/8 in117.5 mm N/A 5 in127 mm N/A 5-5/8 in142.9 mm N/A 5-3/4 in146.1 mm
Weight N/A 65 lb30 kg N/A 65 lb30 kg N/A 82 lb37 kg N/A 117 lb53 kg N/A 143 lb65 kg
Number of Teeth N/A 42 N/A 42 N/A 51 N/A 63 N/A 72
Revolution per Minute N/A 1800 3500 N/A 1800 3200 N/A 1800 3100 N/A 1800 2800 N/A 1800 2500
Distance - X N/A 8 in9 in203 mm229 mm N/A 9 in10 in229 mm254 mm N/A 10 in12 in254 mm305 mm N/A 12 in14 in305 mm356 mm N/A 12 in14 in305 mm356 mm
Allowable Sideload at 8 Inch (in) and 203 Millimetre (mm) Distance N/A 1000 lbf500 lbf600 lbf800 lbf200 kgf300 kgf N/A N/A N/A N/A
Allowable Sideload at 9 Inch (in) and 229 Millimetre (mm) Distance N/A 400 lbf500 lbf200 kgf N/A 1000 lbf500 lbf600 lbf801 lbf400 kgf N/A N/A N/A
Allowable Sideload at 10 Inch (in) and 254 Millimetre (mm) Distance N/A N/A 600 lbf800 lbf300 kgf400 kgf N/A 1100 lbf1300 lbf500 kgf600 kgf N/A N/A
Allowable Sideload at 12 Inch (in) and 305 Millimetre (mm) Distance N/A N/A N/A 800 lbf900 lbf400 kgf N/A 1700 lbf2000 lbf800 kgf900 kgf N/A 1900 lbf2100 lbf1000 kgf900 kgf
Allowable Sideload at 13 Inch (in) and 330 Millimetre (mm) Distance N/A
Allowable Sideload at 14 Inch (in) and 356 Millimetre (mm) Distance N/A N/A N/A N/A 1200 lbf1400 lbf600 kgf N/A 1300 lbf1500 lbf600 kgf700 kgf
Allowable Sideload at 15 Inch (in) and 381 Millimetre (mm) Distance N/A
Allowable Sideload at 16 Inch (in) and 406 Millimetre (mm) Distance N/A
Allowable Sideload at 18 Inch (in) and 457 Millimetre (mm) Distance N/A
Allowable Sideload at 19 Inch (in) and 483 Millimetre (mm) Distance N/A
Allowable Sideload at 20 Inch (in) and 508 Millimetre (mm) Distance N/A
Allowable Sideload at 22 Inch (in) and 559 Millimetre (mm) Distance N/A
Allowable Sideload at 23 Inch (in) and 584 Millimetre (mm) Distance N/A
Allowable Sideload at 27 Inch (in) and 686 Millimetre (mm) Distance N/A
Maximum Input Torque N/A 171 lbf.ft191 lbf.ft232 N.m259 N.m N/A 171 lbf.ft191 lbf.ft232 N.m259 N.m N/A 248 lbf.ft336 N.m N/A 354 lbf.ft481 N.m N/A 487 lbf.ft660 N.m
Maximum Speed N/A 3200 rpm3500 rpm N/A 3200 rpm3500 rpm N/A 3100 rpm N/A 2800 rpm N/A 2500 rpm
Features N/A
  • Sealed-for-life pilot and throw-out bearings eliminate lubrication-related issues
  • Ductile iron drive rings come standard on all models
  • Custom drop-in units available for OEM applications
  • Standard, HD Molded, and HD Laminated friction options
Note N/A Double main bearings N/A Double main bearings N/A N/A N/A