Adjustable Speed Drives (194 companies)
Adjustable speed drives alter the speed of a driven shaft to a speed selected by an operator.
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ANSI Roller Chain Sprockets (218 companies)
English roller chain sprockets engage chains in many different power transmission and conveyor systems. Sprockets and chains are often an economic, reliable drive system for long running, continuous drive applications with limited shock and torque loads. English sprockets are classified according to ANSI number designations.
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Belt and Chain Tensioners (57 companies)
Belt and chain tensioners apply and maintain correct tension on power transmission drive systems.
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Belt Drives (55 companies)
Belt drives are attached between a sprocket at the transmission output and a sprocket attached to the rear wheel. They require no lubrication, so they are one of the cleanest final drive systems. Learn more about Belt Drives

Chain Drives (38 companies)
Chain drives use a chain connected between a sprocket at the transmission output and a sprocket attached to the rear wheel. Drive chains consist of a number of links that contain pins, rollers, bushings, and plates. Learn more about Chain Drives

Conveyor Belts (355 companies)
Conveyor belts are used in a wide variety of material transport applications such as manufacturing, food processing, and heavy industry. Belt construction and belt materials are often application-specific.
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Conveyor Chain (95 companies)
Conveyor chain is used for material conveyance under harsh conditions, in specialty applications, or when material can be allowed to fall through gaps in the conveying surface.
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Conveyor Sprockets (40 companies)
Conveyor sprockets (mill sprockets, engineering class sprockets, engineered sprockets) are used in conjunction with conveyor chains or conveyor belts.
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English Pitch Timing Belts (192 companies)
English pitch timing belts mate with same-pitch timing pulleys in power transmission systems where maintenance of speed ratio is an important design consideration. English pitch is the distance between belt teeth based on inches (in).
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English Pitch Timing Pulleys (134 companies)
English pitch timing pulleys mesh with same-pitch timing belts on synchronous drives where maintenance of speed ratio is important. These pulleys have an inch-based pitch designation.
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Flat Belts (160 companies)
Flat belts are used in transmission and conveying systems. They feature transmission efficiency, cost effectiveness and ease of installation and use. Typical belt applications include conveyors, machine tools, and heavy industrial equipment.
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Flat Belt Pulleys (74 companies)
Flat belt pulleys are used in transmission systems that are driven by flat belts. Learn more about Flat Belt Pulleys

Flexible Couplings (330 companies)
Flexible couplings connect rotating members while allowing some degree of angular or parallel misalignment.
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Flexible Shafts (30 companies)
Flexible shafts provide rotary power transmission along curved or adjustable axes. They are used in a wide variety of remote control, valve actuation, and power transmission applications.
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Flywheels (18 companies)
Flywheels have a high mass and are connected to a rotating shaft that smoothes the delivery of torque, or turning power, from a motor or engine. The inertia of flywheels allows them to absorb and release energy with little change in speed. Learn more about Flywheels

Gearboxes and Gearheads (664 companies)
Gearboxes and gearheads are speed reducers that consist of a set of gears, shafts, and bearings in an enclosed housing. In converting inputs to outputs, they reduce RPM and increase torque.
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Gears (632 companies)
Includes all power transmission gear types, geometry and materials, including English and metric designs.

Idler Pulleys (59 companies)
Idler pulleys are used to take up slack, change the direction of transmission, or provide clutching action. Learn more about Idler Pulleys

Index Drives (28 companies)
Index drives are used to start and stop a table, conveyor or other equipment at precise intervals. Types of index drives include cam index drives, ring index drives, and roller gear index drives. Learn more about Index Drives

ISO Roller Chain Sprockets (135 companies)
Metric roller chain sprockets engage chains in many different power transmission and conveyor systems. Sprockets and chains are often an economic, reliable drive system for long running, continuous drive applications with limited shock and torque loads. Metric sprockets are classified according to ISO number designations.
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Leaf Chain (28 companies)
Leaf chains are a rollerless chain commonly used on fork lift trucks and other material handling applications.
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Linear Shafts (69 companies)
Linear shafts are elongated, rod-shaped devices that provide linear or rotary motion for power transmission applications.
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Mechanical Feedthroughs (31 companies)
Mechanical feedthroughs transmit mechanical motion through the walls of a vacuum system. Both linear and rotary feedthroughs are included in this grouping.
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Metric Pitch Timing Belts (163 companies)
Metric pitch timing belts mate with same-pitch timing pulleys in power transmission systems where maintenance-of-speed ratio is an important design consideration. Metric pitch is the distance between belt teeth based on millimeters (mm).
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Metric Pitch Timing Pulleys (122 companies)
Metric pitch timing pulleys mesh with same-pitch timing belts on synchronous drives where maintenance of speed ratio is important. These pulleys have a millimeter-based pitch designation.
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Power Take-offs (PTO) (41 companies)
Power take-offs (PTOs) are extensions of a vehicle's drive train that can be engaged to power auxiliary equipment such as plows, augers, winches, and many other material handling, construction, and agricultural implements.
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Precision Locknuts (79 companies)
Precision locknuts are used to secure bearings, gears, and other power transmission products to shafts and spindles.
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Precision Shafting (70 companies)
Precision shafting provides the highest degree of overall accuracy, concentricity, straightness and surface perfection attainable in commercial practice.
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Ratchets and Pawls (12 companies)
Ratchets and pawls are mechanical gearing used to transmit intermittent rotary motion. They permit a shaft to rotate in one direction, but not in the opposite one.
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Rigid Couplings (148 companies)
Rigid couplings connect rotating members such as shafts. They secure onto both members and provide transmission of torque and motion.
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Roller Chain (217 companies)
Roller chains are used in many power transmission designs. They are characterized by ANSI and BS/DIN standard sizes.
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Rolls and Rollers (320 companies)
Rolls and rollers are cylindrical components used to drive, form, press together or handle webs of sheet metal, cloth, plastic, paper or other materials. Learn more about Rolls and Rollers

Rotary Shafts (89 companies)
Rotary shafts are elongated, rod-shaped devices that rotate about a longitudinal axis and transmit torque. They are similar in shape to linear shafts, but are designed to withstand torsional forces.
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Round Belt Pulleys (57 companies)
Round belt or grooved pulleys are used in drives and mechanical systems with o-rings or round belts, cables, ropes and wires.
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Round Belts and O-ring Belts (60 companies)
Round belts and o-ring belts are light-to-medium duty power transmission belts. They can be solid or hollow, and can easily be used in 3-D applications.
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Shaft-hub Locking Devices (56 companies)
Shaft-hub locking devices frictionally clamp gears, pulleys, flywheels, and other components to a shaft without the need for threads or keys.
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Shaft Collars (113 companies)
Shaft collars attach to shafts and are used as stop features or targets for devices such as tachometers.
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Silent Chain (11 companies)
Silent chain or inverted-tooth chain features teeth on its links that engage the sprocket teeth.  Silent chain can be wide and is used in a variety of power transmission and conveying applications.
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Specialty Power Transmission Components (111 companies)
Specialty or proprietary products and accessories related to power transmission components. Learn more about Specialty Power Transmission Components

Timing Pulley Flanges (23 companies)
Timing pulley flanges are used to maintain belt contact with a pulley in a transmission application.
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Tire Protection Chains (16 companies)
Tire protection chains are used to reduce the danger of tire puncture from sharp rocks, heat, scrap metal or other hazards. Learn more about Tire Protection Chains

Universal Joints (122 companies)
Universal joints are flexible mechanical connections used to transmit rotary motion from one shaft to another shaft that is not in line with the first, or when alignment varies during service.
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Variable Transmissions (60 companies)
Variable transmissions are used in industrial applications to alter the speed of an output shaft.
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V-belt Pulleys (156 companies)
V-belt pulleys or sheaves mate with drive belts in numerous power transmission applications. They are made in many configurations such as tension idlers and variable speed / ratio pulleys.
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V-belts and V-ribbed Belts (258 companies)
V-belts and V-ribbed belts are power transmission drive belts with a triangular or trapezoidal cross section. They are available in a variety of belt materials, reinforcement styles, and speed configurations.
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V-ribbed Pulleys (10 companies)
V-ribbed pulleys or sheaves have a series of V-shaped ribs that mate with V-ribbed belts. They are used in numerous power transmission applications. Learn more about V-ribbed Pulleys