Lowell Corporation Mechanical Ratchet Clutches, Model 702

Low cost and weight with high performance
Lowell ratchet clutches are designed from standard bodies, gears, pawls, and springs. Forces are applied in an optimum manner between the solid steel gear and pawl so that loads are in compression rather than in shear. Gears are a low-carbon steel. Rugged tooth design as large contact area with pawl.

  • Fingertip control of motion: one way clockwise and one way counter-clockwise
  • Control lever can be connected to hydraulic, pneumatic, or electric actuators for remote shifting
  • Simple design ensures durability and reduces purchase and operating costs
  • High drive torque-to-weight ratio
  • Maximum driving efficiency
  • Minimal overrunning torque
  • Versatile mounting options
  • Standard gear openings available in hex, square, and bore and keyway (per ANSI/ASME B17.1)
  • Can be used individually or in combination
  • Open-sided for easy, minimal maintenance
  • Alignment is not critical
  • 100% made in USA
ImageOpeningPart NumberGear TeethMax TorqueOverrunning SpeedMaterialABCDEFGHJMeasurement Systemhf:att:pa_socket-openinghf:att:pa_gear-teethhf:att:pa_max-torquehf:att:pa_overrunning-speedhf:att:pa_materialhf:att:pa_ahf:att:pa_bhf:att:pa_chf:att:pa_dhf:att:pa_ehf:att:pa_fhf:att:pa_ghf:att:pa_hhf:att:pa_jhf:att:pa_measurement-system
Model 702 Ratchet Clutch with Square Opening
1/2" Sq70200-9260820175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Standard1-2-sq20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64standard
Model 702 Ratchet Clutch with Square Opening
9/16" Sq70200-9260920175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Standard9-16-sq20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64standard
Model 702 Ratchet Clutch with Square Opening
5/8" Sq70200-9261020175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Standard5-8-sq-220175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64standard
Model 702 Ratchet Clutch with Square Opening
3/4" Sq70200-9261220175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Standard3-4-sq-220175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64standard
Model 702 Ratchet Clutch with Square Opening
13 mm Sq70200-M261320175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Metric13-mm-sq20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64metric
Model 702 Ratchet Clutch with Square Opening
14 mm Sq70200-M261420175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Metric14-mm-sq20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64metric
Model 702 Ratchet Clutch with Square Opening
16 mm Sq70200-M261620175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Metric16-mm-sq20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64metric
Model 702 Ratchet Clutch with Square Opening
19 mm Sq70200-M261920175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Metric19-mm-sq20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64metric
Model 702 Ratchet Clutch with Hex Opening
1/2" Hex70200-9270820175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Standard1-2-hex20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64standard
Model 702 Ratchet Clutch with Hex Opening
9/16" Hex70200-9270920175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Standard9-16-hex20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64standard
Model 702 Ratchet Clutch with Hex Opening
5/8" Hex70200-9271020175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Standard5-8-hex20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64standard
Model 702 Ratchet Clutch with Hex Opening
3/4" Hex70200-9271220175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Standard3-4-hex20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64standard
Model 702 Ratchet Clutch with Hex Opening
7/8" Hex70200-9271420175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Standard7-8-hex20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64standard
Model 702 Ratchet Clutch with Hex Opening
1" Hex70200-9271620175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Standard1-hex20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64standard
Model 702 Ratchet Clutch with Hex Opening
13 mm Hex70200-M271320175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Metric13-mm-hex20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64metric
Model 702 Ratchet Clutch with Hex Opening
14 mm Hex70200-M271420175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Metric14-mm-hex20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64metric
Model 702 Ratchet Clutch with Hex Opening
16 mm Hex70200-M271620175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Metric16-mm-hex20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64metric
Model 702 Ratchet Clutch with Hex Opening
17 mm Hex70200-M271720175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Metric17-mm-hex20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64metric
Model 702 Ratchet Clutch with Hex Opening
19 mm Hex70200-M271920175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Metric19-mm-hex20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64metric
Model 702 Ratchet Clutch with Hex Opening
22 mm Hex70200-M272220175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Metric22-mm-hex20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64metric
Model 702 Ratchet Clutch with Hex Opening
25 mm Hex70200-M272520175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Metric25-mm-hex20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64metric
Model 702 Ratchet Clutch with Bore Opening
1/2" Bore70200-9250820175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Standard1-2-bore20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64standard
Model 702 Ratchet Clutch with Bore Opening
5/8" Bore70200-9251020175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Standard5-8-bore20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64standard
Model 702 Ratchet Clutch with Bore Opening
3/4" Bore70200-9251220175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Standard3-4-bore20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64standard
Model 702 Ratchet Clutch with Bore Opening
7/8" Bore70200-9251420175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Standard7-8-bore20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64standard
Model 702 Ratchet Clutch with Bore Opening
1" Bore70200-9251620175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Standard1-bore20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64standard
Model 702 Ratchet Clutch with Bore Opening
13 mm Bore70200-M251320175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Metric13-mm-bore20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64metric
Model 702 Ratchet Clutch with Bore Opening
16 mm Bore70200-M251620175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Metric16-mm-bore20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64metric
Model 702 Ratchet Clutch with Bore Opening
19 mm Bore70200-M251920175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Metric19-mm-bore20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64metric
Model 702 Ratchet Clutch with Bore Opening
25 mm Bore70200-M252520175 lb-ft100 rpmFabricated Steel5-1/4"2-3/8"61/64"3-5/8"1-1/4"4-1/2"13/16"1-5/8"17/64"Metric25-mm-bore20175-lb-ft100-rpmfabricated-steel5-1-42-3-861-643-5-81-1-44-1-213-161-5-817-64metric