Torque Converters

How does a Comet torque converter work? The drive clutch is activated by centrifugal force from the engine crankshaft. The movable sheave of the clutch is forced in as the RPM of the engine is increased. This contacts the drive belt. The drive belt will then be forced to a larger diameter within the clutch sheaves, thus pulling it to a smaller diameter within the driven unit sheaves. The movable sheave of the driven unit is forced out, allowing the belt to seek its smaller, high speed ratio diameter. As this happens, the speed from the engine transferred to the final drive is increased.

Model 20 Series (Symmetrical)

The model 20 uses a 3/4" top width belt. The belt mass lends substantially to the driving ability of the system, especially in cases where added torque ability is required without danger of slipping the belt. The belt mass of 3/4" top width is especially helpful in applications of low speed, added power requirements such as tractor mowers, off road dune buggies, mini bikes, ATV's, and go-karts. This is a conventional type system featuring 13° angle sheave faces for a 26° collective angle. Driven units available with either 6" or 7" diameter sheaves.

Comet 20 Series Torque Converter
Specifications
Features
Applications
Diameter: 4-19/32"Simple DesignMaterial Handling
Actuation: 2 shoes w/garter springsEasy user installationGo-Kart & Mini Bike
Calibration: Spring TensionReliableLawn & Garden
Bore: 3/4" & 1"20 Series Symmetrical
Industrial Equipment
HP: up to 8

Engagement: 1200 - 3100 RPM



Model 340 Series

Comet Torque Converters for All Engines through 8 HP. The model 340 automatic torque converter system was designed specifically for light horsepower applications such as mini bikes, lightweight sports vehicles and industrial equipment. Generally engine driven, this converter is torque sensitive which means the vehicle or driven load has influence on establishing the ratio between the driver and driven. In normal operation, the driver "shifts into high" in response to the engine's increase in speed; the driven follows this speed change as in any variable pitch belt drive. In the torque sensitive design, a cam actuator in the driven reacts to increased torque demands by downshifting without loss of engine RPM. In this way, the engine continues to operate at peak power range for all but the most severe loads when it will shift into peak torque range.

Comet 20 Series Torque Converter
Specifications
Features
Applications
Diameter: 4-19/32"Simple DesignMaterial Handling
Actuation: 2 shoes w/garter springsEasy user installationGo-Kart & Mini Bike
Calibration: Spring TensionReliableLawn & Garden
Bore: 3/4" & 1"20 Series Symmetrical
Industrial Equipment
HP: up to 8

Engagement: 1200 - 3100 RPM



Model 30 Series (Asymmetrical)

The model 30 uses a 3/4" top width belt. The belt mass in No. 30 is desirable in applications requiring extra rugged driving ability, such as dune buggies, go-karts, mini bikes, ATV's, grounds maintenance equipment, materials handling devices and industrial equipment. The Model 30 series is mounted with both stationary sheaves inboard. Mounting can be on a flat, fixed plane, requiring only minimum displacement.

SCP-IC Industrial Clutch
Specifications
Features
Applications
Diameter: Internal 4"; External 3.69" - 5.31"Roller Bearing, Double SealedConcrete Finishing Equipment
Housing: Cast IronSelf-ContainedFloor Polishers
Bore: 3/4" 7/8", 1"Bi-DirectionalSmall Chippers
HP: up to 15Heavy Duty Design
Industrial Equipment
Single / Double Pulley
Portable Sawmills
A or B Section Belt
Industrial Sprayers


TAV2 Torq-A-Verter

This is an asymmetrical type torque converter system which means the sheave faces are non-symmetrical. They have different angles. In this case, the moveable sheave face is 18" while the stationary sheave face is 2-1/2" for a collective angle of 20-1/2". Here are some reasons for selecting the asymmetrical concept. The Torque-A-Verter can attain an .90:1 or 10% overdrive. Comet Industries manufactures a Speed Limiter. Easy to install, the speed limiter is the answer to control when inexperienced drivers get behind the wheel. Learn more.

Comet TAV2 Torque-A-Verter Converter
Specifications
Features
Applications
Diameter: 6"Can attain .90:1 or 10% overdriveGo-Kart
Drive Clutch Engagement: 2200 RPMAsymmetricalMini Bikes
Drive Belt: 3/4" Top Width Asymmetrical
Lawn & Garden
Drive Clutch Bore: 3/4" (3/16 KEY),
1" (1/4 KEY)

Industrial Equipment
HP: 8 HP (2 Cycle / 4 Cycle)



Model 40 Series

The model 40 is sometimes referred to as the "Mid-Range" torque converter systems since it falls into the middle range between the Comet series. The model 40 is a rugged piece of machinery. The drive clutch is composed of heavy walled stamped steel to withstand the extreme rigors of rough applications. Whenever there is a need, want and use for a torque sensitive drive system device that is infinitely variable form engagement to the highest speeds attainable (within the pitch diameter range), the 40 model system should be considered.

Comet 40 Series Torque Converter
Specifications
Features
Applications
Diameter: 5-17/32"Simple DesignGo-Kart
Actuation: 3-rollerQuietLight Utility Vehicle
Calibration: SpringDurable
Bore: 1"

HP: up to 25

Engagement: 1600 - 3100 RPM



Model 44 CV "Magnum" Series (Symmetrical)

The Magnum 44 continuously variable transmission torque converter system for up to 18 HP applications is a rugged piece of machinery. The drive clutch is designed to withstand the extreme rigors of rough applications. The driven unit is of the same quality construction as the drive clutch. Application possibilities cover a wide range. By changing pucks and spring, you can convert the Magnum from the standard 4 cycle setup to be used on 2 cycle engines.

Comet 44C Series "Magnum" Torque Converter
Specifications
Features
Applications
Diameter: 5-17/32"DurableGo-Kart
Bore: 3/4", 1", 1-1/8" & SpecialTunableIndustrial Equipment
HP: up to 25AdjustableLawn and Garden
Engagement: 1900 - 3900 RPMReliable
Light Duty Utility Vehicles


Model 500 Series

The model 500 drive and driven variable pulleys are installed in a power train drive system to better match output requirements with an engine output. If the engine is allowed to run at its peak output power, the most power available from the engine will be directed to the driven shaft. The model 500 responds to load requirements and changes the ratio between the drive and driven pulleys so that the engine can maintain its peak power output.

Comet 500 Series Torque Converter
Specifications
Features
Applications
Diameter: 5-3/8"AdjustableGo-Karts
Actuation: 3-roller CamsTunableUtility Vehicles
Calibration: Spring Ramp, WeightsReliable
Bore: 3/4" & 1"

HP: 2 cycle - 25 4 cycle - 16

Engagement: 800 - 4000 RPM



Model 700 (Odyssey)

Comet 700 Series Torque Converter
Specifications
Features
Applications
Diameter: 7-1/4"AdjustableGo-Karts
Actuation: 3-roller CamsTunableIndustrial Equipment
Calibration: Spring RampReliableLight Utility Vehicle
Bore: 1"Wide Ratio

HP: 2 cycle - 25 4 cycle - 16

Engagement: 800 - 4000 RPM



Model 94C Duster Clutch Series

This is the one to use for all V-twins and high torque applications! With a beefy 1-3/16" belt, the 94C has the rugged reliability needed when you want to spend your time riding, not making repairs. A 3.49-1 low and a .78-1 high provides a wide gear range for great low end pulling power without sacrificing top speed! Custom calibration of drive unit is quick and easy allowing you to get maximum performance out of your engine. Contact Comet Industries for recommendations.

Comet 94C Series Torque Converter
Specifications
Features
Applications
Diameter: 7-1/4"SimplicitySnowmobile
2 Cycle & 4 CycleFewer Moving PartsOdyssey
Housing: Stamped / CastEasy CalibrationIndustrial Equipment
Bore: 30mm 1:10 Tapered 1" & 1-1/8"Performance
Light Utility
HP: up to 40Limited Maintenance
Engagement: 1600 - 4600 RPM



Model 103 Series

Our new 130 HPQ performance clutch for Polaris and Kawasaki ATV's. Extensive testing showed that the 103 HPQ provides up to a 25% enhancement due to a larger diameter pulley and a greater sheave angle than the OEM clutch provides.

Comet 103 HPQ Series Torque Converter
Specifications
Features
Applications
Diameter: 7-9/16"Highly Tunable
Calibration: Swing ArmReliable
Housing: Cast AluminumQuiet and Smooth
Bore: 1:10 taper, 30mmHeavy Duty

HP: up to 120Fan Cooled
Engagement: 2500 - 5000 RPM



Model 102C Series

Designed for snowmobiles and other applications that require a full range of exceptional ability from engagement through the highest speeds available from the power source, the 102C clutch is one of the best for snowmobiles and other machines using belt driven torque converters. The 102C clutch has unsurpassed tuning ability, outperforms clutches of similar design, has an open face design for economical servicing. Contact Comet Industries for recommendations.

Comet 102C Series Torque Converter
Specifications
Features
Applications
Diameter: 7-9/19"Open FaceSnowmobile
Calibration: Swing ArmEasy MaintenanceSpecial Vehicles
Housing: Cast AluminumTuneabilityUtility Vehicles
Bore: 30 mm 1:10 TaperedRetro Fits
Industrial Equipment
HP: up to 120Performance
Engagement: 2500 - 5000 RPM



Model 108EXP Series

Designed for snowmobiles and other applications that require a full range of exceptional ability from engagement through the highest speeds available from the power source, the 108EXP clutch is one of the best for snowmobiles and other machines using belt driven torque converters. The 108EXP clutch has unsurpassed tuning ability, outperforms clutches of similar design, has an open face design for economical servicing.Contact Comet Industries for recommendations.

108EXP Torque Converter
Specifications
Features
Applications
Diameter: 8"Built to Handle High Horsepower EnginesSnowmobiles
Calibration: Swing ArmTunable
Housing: Cast AluminumBelt Adjustable
Bore: 30mm, 33mm 1:10 & 1:7.5 Tapered; 1-3/8" & 1-1/4" beltHeavy Duty

HP: up to 150

Engagement: 2500 to 5000 RPM



4 Pro Series

The super clutch! The 108 4-Pro utilizes four clutch weights rather than three, greatly enhancing tuneability. Arms can be used in sets of two, allowing you to zero in on the amount of weight desired, and a captivated tower allows the shouldered cover bolts to virtually eliminate tower spreading. A fourth load bearing member increases the roller and button life. New moveable sheave busing, higher heat and wear resistance also extends the clutch performance.

4-PRO Torque Converter
Specifications
Features
Applications
Diameter: 8"TunabilitySnowmobiles
Calibration: UncalibratedHigh Heat and Wear Resistance
Housing: Cast AluminumRoller & Button Life Increased
Bore: 30mm, 33mm 1:10 Tapered; 1-3/8" belt

HP: up to 200

Engagement: 2500 to 5000 RPM