Speed Reducers

Maximize Your Equipment’s Performance with Cotta Speed Reducers

Cotta speed reducers have been Made in the USA for over 100 years!

Cotta’s long tradition of manufacturing the highest quality gearboxes, American-made for more than a century, is exemplified in our extensive line of speed reducers and speed increasers. Our speed reducers match the optimum engine speed to the optimum driven equipment speed, allowing your engine and load to both operate at ideal efficiency. Typical uses include pumps, dredges, compressors, crushers, drills and high-performance machinery for oil & gas, construction, mining, and other industrial applications. Our heavy-duty gearboxes are designed for use with diesel engines, electric motors, PTO’s, and other prime movers.

Cotta speed reducers require rear supports and are designed to be driven clockwise facing the input shaft. For us to recommend a speed reducer, we need to know your input speed, ideal output speed, flywheel housing size, flywheel connection requirement, direction of rotation, and the type of driven equipment. If one of our pre-designed units listed below doesn’t fit your need, then our engineering team will create a custom solution specifically for you. Cotta engineers have experience designing specialized speed reducers to meet a variety of requirements and options.

AR2053A

  • OUTPUT ROTATION: Opposite input
  • MAX INPUT TORQUE: 500 lb-ft.
  • MAX INPUT SPEED: 3000 rpm or as otherwise limited by input coupling or clutch.
  • RATIOS: 1.0 to 3.0 std. 3.94 by special order
  • OUTPUT SHAFT SIZE: 2.25” dia., X 5” long. 5/8” X 5/16” keyway
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #2, #3, #4
  • *FLYWHEEL COUPLINGS: Clutches, couplings, and drive plates up to SAE 11”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per dwg.
  • LUBRICATION: Splash standard, pump optional.
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 400 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

AR2053E

  • OUTPUT ROTATION: Same as input
  • MAX INPUT TORQUE: 350 lb-ft.
  • MAX INPUT SPEED: 3000 rpm unless otherwise limited by input clutch or coupling.
  • RATIOS: 1.16 to 3.71. 4.0 by special order
  • OUTPUT SHAFT SIZE: 2.25” dia., X 5” long. 5/8” X 5/16” keyway
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #2, #3, #4
  • *FLYWHEEL COUPLINGS: Various clutches and couplings through SAE 11”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes  provided per dwg.
  • LUBRICATION: Splash standard, pump optional.
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 415 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

GR15A

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 1450 lb-ft.
  • MAX INPUT SPEED: 2350 RPM or as otherwise limited by input clutch or coupling.
  • RATIO RANGE: 1.08 TO 2.46
  • OUTPUT SHAFT SIZE: 4” dia., 9” long, 1” x 1/2” keyway
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional.
  • SAE HOUSINGS: #00, #0, #1
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 24”.
  • REAR SUPPORT: Integral foot mounts provided.
  • LUBRICATION: Integral Lube pump supplied.
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: Yes. Contact Cotta for specs and limits.
  • ***APPROXIMATE WEIGHT: 1200 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

GR15E

  • OUTPUT ROTATION: Same as input
  • MAX INPUT TORQUE: 1450 lb-ft.
  • MAX INPUT SPEED: 2300 rpm or as otherwise limited by input coupling or clutch
  • RATIO RANGE: 1.28 to 2.43
  • OUTPUT SHAFT SIZE: 4” dia., 9” long, 1” X 1/2” keyway
  • OUTPUT SHAFT LOCATION: 6”o’clock std., 12, 3, and 9 o’clock by special design
  • SAE HOUSINGS: #00, #0, #1/2, #1
  • *FLYWHEEL COUPLINGS: Clutches, couplings, and drive plates up to SAE 24”.
  • REAR SUPPORT: Integral foot mounts provided.
  • LUBRICATION: Integral lube pump supplied.
  • COOLING: Oil\water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: Yes. Contact Cotta for specs and limits.
  • ***APPROXIMATE WEIGHT: 1330 lbs

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

GR16A

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 1650 lb-ft.
  • MAX INPUT SPEED: 2200 RPM or as otherwise limited by input clutch or coupling.
  • RATIO RANGE: 1.50 to 3.0
  • OUTPUT SHAFT SIZE: 4.000” dia., 9” long, 1” X 1/2” keyway.
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #00, #0, #1/2, #1
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 24”.
  • REAR SUPPORT: Integral foot mounts provided.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: Yes. Contact Cotta for specs and limits.
  • ***APPROXIMATE WEIGHT: 1400 lbs

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

GR16E

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 1650 lb-ft.
  • MAX INPUT SPEED: 2200 RPM or as otherwise limited by input clutch or coupling.
  • RATIO RANGE: 1.50 to 3.0
  • OUTPUT SHAFT SIZE: 4.000” dia., 9” long, 1” X 1/2” keyway.
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #00, #0, #1/2, #1
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 24”.
  • REAR SUPPORT: Integral foot mounts provided.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: Yes. Contact Cotta for specs and limits.
  • ***APPROXIMATE WEIGHT: 1500 lbs

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

GR1600A

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 3000 lb-ft.
  • MAX INPUT SPEED: 2200 RPM or as otherwise limited by input clutch or coupling.
  • RATIO RANGE: 1.35 to 3.07
  • OUTPUT SHAFT SIZE: 4.000” dia., 9” long, 1” X 1/2” keyway.
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #00, #0, #1/2, #1
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 24”.
  • REAR SUPPORT: Integral foot mounts provided.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: Yes. Contact Cotta for specs and limits.
  • ***APPROXIMATE WEIGHT: 1400 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

GR1600E

  • OUTPUT ROTATION: Same as input.
  • MAX INPUT TORQUE: 2600 lb-ft.
  • MAX INPUT SPEED: 2200 RPM or as otherwise limited by input clutch or coupling.
  • RATIO RANGE: 1.28 to 3.0
  • OUTPUT SHAFT SIZE: 4.000” dia., 9” long, 1” X 1/2” keyway.
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #00, #0, #1/2, #1
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 24”.
  • REAR SUPPORT: Integral foot mounts provided.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: Yes. Contact Cotta for specs and limits.
  • ***APPROXIMATE WEIGHT: 1500 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

GR3200A

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 5500 lb-ft.
  • MAX INPUT SPEED: 2200 RPM or as otherwise limited by input clutch or coupling.
  • RATIO RANGE: 1.19 to 2.89
  • OUTPUT SHAFT SIZE: 4.750” dia., 7” long1.25” X .4375’’ keyway.
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #00, #0
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 24”
  • REAR SUPPORT: Integral foot mounts provided.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 1800 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

GR3200E

  • OUTPUT ROTATION: Same as input.
  • MAX INPUT TORQUE: 4500 lb-ft.
  • MAX INPUT SPEED: RPM or as otherwise limited by input clutch or coupling.
  • RATIOS: 1.20 to 3.13
  • OUTPUT SHAFT SIZE: 4.750” dia., 7” long, with 1.25” X .4375” keyway.
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #00, #0
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 24”.
  • REAR SUPPORT: Integral foot mounts provided.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 2000 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

GR975200

  • OUTPUT ROTATION: Same as input.
  • MAX INPUT TORQUE: 2400 lb-ft.
  • MAX INPUT SPEED: 2200 RPM or as otherwise limited by input clutch or coupling.
  • RATIOS: 3.49 to 6.58.
  • OUTPUT SHAFT SIZE: 5.5” dia., 8” long, with 1.0” X .5” keyway.
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #00, #0, #1
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 24”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 2300 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

SR2A

  • OUTPUT ROTATION: Opposite input
  • MAX INPUT TORQUE: 800 lb-ft.
  • MAX INPUT SPEED: 3000 rpm or as otherwise limited by input clutch or coupling
  • RATIOS: 1:1 to 3:1 Others by special design
  • OUTPUT SHAFT SIZE: 3” dia., 5.5”long, 3/8” X 3/4” keyway
  • OUTPUT SHAFT LOCATION: 6 o’clock std., 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #1, #2, #3
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 14 inch.
  • REAR SUPPORT: Required, customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 775 lbs

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

SR2E

  • OUTPUT ROTATION: Same as input.
  • MAX INPUT TORQUE: 600 lb-ft.
  • MAX INPUT SPEED: 3000 RPM or as otherwise limited by input clutch or coupling.
  • RATIOS: 1.42 TO 3.0. Others by special design.
  • OUTPUT SHAFT SIZE: 3” dia., 5.5” long, 3/4” X 3/8” keyway
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #1, #2, #3
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 14 inch.
  • REAR SUPPORT: Required, customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied.
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 800 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

SR3A

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 1400 lb-ft.
  • MAX INPUT SPEED: 3000 RPM or as otherwise limited by input clutch or coupling.
  • RATIOS: 1.02 to 3.04. Others by special design.
  • OUTPUT SHAFT SIZE: 3.5” dia., 5” long, 7/8” X 7/16” keyway
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #0, #1, #2
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 18 inch.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler supplied if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 940 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

SR3E

  • OUTPUT ROTATION: Same as input.
  • MAX INPUT TORQUE: 900 lb-ft.
  • MAX INPUT SPEED: 3000 RPM or as otherwise limited by input clutch or coupling.
  • RATIOS: 1.2 to 3.0
  • OUTPUT SHAFT SIZE: 3.5” dia., 5” long, 7/8” X 7/16” keyway
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional.
  • SAE HOUSINGS: #0, #1, #2
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 18”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied.
  • COOLING: Oil/water shell-and-tube cooler supplied if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 975 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

SR12A

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 750 lb-ft.
  • MAX INPUT SPEED: 2500 RPM or as otherwise limited by input clutch or coupling.
  • RATIO RANGE: 1.03 to 3.87
  • OUTPUT SHAFT SIZE:
    3.000” dia., 5.5” long, with 3/4” X 3/8” keyway.
    3.500” dia., 5.5 long, 7/8” X 7/16” keyway above 3.45 ratio.
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #0, #1, #2
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 18 inch.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Splash standard, pump optional.
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 750 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

SR12E

  • OUTPUT ROTATION: Same as input.
  • MAX INPUT TORQUE: 750 lb-ft.
  • MAX INPUT SPEED: 2500 RPM or as otherwise limited by input clutch o coupling.
  • RATIO RANGE: 1.30 to 3.92
  • OUTPUT SHAFT SIZE:
    3.000” dia., 5.5” long, with 3/4” X 3/8” keyway.
    3.500” dia., 5.5” long, 7/8” X 7/16”keyway above 3.45 ratio.
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #0, #1, #2
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 18 inch.
  • REAR SUPPORT: Required Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 815 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

SR700A

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 650 lb-ft.
  • MAX INPUT SPEED: 2500 RPM or as otherwise limited by input clutch or coupling.
  • RATIO RANGE: 1.5 to 2.0
  • OUTPUT SHAFT SIZE: 3”dia., 5.5” long, 3/8” X 3/4” keyway.
  • OUTPUT SHAFT LOCATION: 6 o’clock
  • SAE HOUSINGS: #1, no optional sizes.
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 14”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Splash. Pump optional if required.
  • COOLING: Oil/water shell-and-tube cooler furnished if required.
  • **SIDE LOAD CAPABLE: Yes. Contact Cotta for specs and limits.
  • ***APPROXIMATE WEIGHT: 510 lbs

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

SR700E

  • OUTPUT ROTATION: Same as input.
  • MAX INPUT TORQUE: 650 lb-ft.
  • MAX INPUT SPEED: 2500 RPM or as otherwise limited by input clutch or coupling.
  • RATIO RANGE: 1.43 to 1.95
  • OUTPUT SHAFT SIZE: 3”dia., 5.5” long, 3/8” X 3/4” keyway.
  • OUTPUT SHAFT LOCATION: 6 o’clock
  • SAE HOUSINGS: #1, no optional sizes.
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 14”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Splash. Pump optional if required.
  • COOLING: Oil/water shell-and-tube cooler furnished if required.
  • **SIDE LOAD CAPABLE: Yes. Contact Cotta for specs and limits.
  • ***APPROXIMATE WEIGHT: 510 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

SR972A

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 1000 lb-ft.
  • MAX INPUT SPEED: 2200 RPM or as otherwise limited by input clutch or coupling.
  • RATIO RANGE: 3.49 to 6.25
  • OUTPUT SHAFT SIZE: 3.500” dia., 4.5” long, 7/8” X 7/16” keyway.
  • OUTPUT SHAFT LOCATION: 6 o’clock.
  • SAE HOUSINGS: #0, #1
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 18”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied.
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 1200 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

SR972E

  • OUTPUT ROTATION: Same as input.
  • MAX INPUT TORQUE: 1000 lb-ft.
  • MAX INPUT SPEED: 2200 RPM or as otherwise limited by input clutch orcoupling.
  • RATIOS: 3.09 to 6.25
  • OUTPUT SHAFT SIZE: 3.500” dia., 4.5” long, 7/8” X 7/16” keyway.
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #0, #1
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates throughSAE 18”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 1190 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

SR2030A

  • OUTPUT ROTATION: Opposite to input.
  • MAX INPUT TORQUE: 750 lb-ft.
  • MAX INPUT SPEED: 2500 RPM or as otherwise limited by input clutch or coupling.
  • RATIO RANGE: 3.45 to 5.17
  • OUTPUT SHAFT SIZE: 3.500” dia., 5.5” long 7/8” X 7/16” keyway.
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #0, #1, #2, #3
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 18”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 900 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

SR2030E

  • OUTPUT ROTATION: Same as input.
  • MAX INPUT TORQUE: 750 lb-ft.
  • MAX INPUT SPEED: 2500 RPM or as otherwise limited by input clutch or coupling.
  • RATIOS: 3.22 to 5.20
  • OUTPUT SHAFT SIZE: 3.500” dia., 5.5” long 7/8” X 7/16” keyway.
  • OUTPUT SHAFT LOCATION: 6 o’clock std, 12, 3, and 9 o’clock optional
  • SAE HOUSINGS: #0, #1, #2, #3
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 18”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied.
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 900 lbs

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

SR2031E

  • OUTPUT ROTATION: Same as input.
  • MAX INPUT TORQUE: 1150 lb-ft.
  • MAX INPUT SPEED: 2500 RPM or as otherwise limited by input clutch or coupling.
  • RATIOS: 3.5 to 7.05
  • OUTPUT SHAFT SIZE: 3.500” dia., 4.5” long 7/8” X 7/16” keyway.
  • OUTPUT SHAFT LOCATION: 6 o’clock to input.
  • SAE HOUSINGS: #0, #1
  • *FLYWHEEL COUPLINGS: Various clutches, couplings, and drive plates through SAE 18”.
  • REAR SUPPORT: Required. Customer supplied item. Mounting holes provided per drawing.
  • LUBRICATION: Integral Lube pump supplied
  • COOLING: Oil/water shell-and-tube cooler furnished if required. Various options.
  • **SIDE LOAD CAPABLE: No. Contact Cotta for recommendations.
  • ***APPROXIMATE WEIGHT: 1420 lbs.

* Flywheel coupling selection requires Cotta technical review and approval.
** Some speed reducers output shafts are suitable for chain or belt side pull drives while others are not. Provide complete application details to Cotta for recommendations and approval.
*** Weight listed is an average. Actual weight can vary substantially with options such as SAE housing size and flywheel coupling choices.

Cotta. Your gearbox of choice.

Precision-Engineered Speed Reducers to Meet Your Unique Requirements. Contact us today to learn more.

Maximize the efficiency of your industrial equipment with Cotta’s precision-engineered speed reducers. With a wide range of sizes and styles to choose from, our team of experts can help you find the perfect fit for your specific needs. Contact us today at 608.368.5600, sales@cotta.com, or click here to get started