Adjustable Speed Drives (192 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 (202 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 (52 companies)
Belt and chain tensioners apply and maintain correct tension on power transmission drive systems.
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Belt Drives (46 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 (35 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 (325 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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Flat Belts (152 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 (75 companies)
Flat belt pulleys are used in transmission systems that are driven by flat belts. Learn more about Flat Belt Pulleys

Flexible Couplings (296 companies)
Flexible couplings connect rotating members while allowing some degree of angular or parallel misalignment.
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Flexible Shafts (27 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 (19 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 (615 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 (583 companies)
Includes all power transmission gear types, geometry and materials, including English and metric designs.

Idler Pulleys (54 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 (23 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 (121 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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Linear Shafts (57 companies)
Linear shafts are elongated, rod-shaped devices that provide linear or rotary motion for power transmission applications.
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Locknuts, Precision (67 companies)
Precision locknuts are used to secure bearings, gears, and other power transmission products to shafts and spindles.
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Mechanical Feedthroughs (30 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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Power Take Offs (38 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 Shafting (66 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 (11 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 (141 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 (200 companies)
Roller chains are used in many power transmission designs. They are characterized by ANSI and BS/DIN standard sizes.
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Rotary Shafts (72 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 (54 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 (48 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 (49 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 (99 companies)
Shaft collars attach to shafts and are used as stop features or targets for devices such as tachometers.
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Specialty Power Transmission Components (107 companies)
Specialty or proprietary products and accessories related to power transmission components. Learn more about Specialty Power Transmission Components

Timing Belts, English Pitch (176 companies)
Timing belts are transmission drive belts with teeth for efficient, high-power synchronous drives. English or imperial pitch is the distance between belt teeth based on inches.
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Timing Belts, Metric Pitch (145 companies)
Timing belts are transmission drive belts with teeth for efficient, high-power synchronous drives. Metric pitch is the distance between belt teeth based on millimeters.
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Timing Pulley Flanges (20 companies)
Timing pulley flanges are used to maintain belt contact with a pulley in a transmission application.
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Timing Pulleys, English Pitch (125 companies)
Timing pulleys mesh with same-pitch timing belts on synchronous drives where maintenance of speed ratio is important. English or imperial pitch pulleys have an inch-based pitch designation.
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Timing Pulleys, Metric Pitch (111 companies)
Timing pulleys mesh with same-pitch timing belts on synchronous drives where maintenance of speed ratio is important. Metric pitch pulleys have a millimeter-based pitch designation.
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Tire Protection Chains (13 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 (111 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 (59 companies)
Variable transmissions are used in industrial applications to alter the speed of an output shaft.
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V-belt Pulleys (147 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 (235 companies)
V-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 Belts (19 companies)
V-ribbed belts resemble flat belts, but have a series of V-shaped ribs on the drive surface which run the full length of the belt. Learn more about V-ribbed Belts