ANSI Roller Chain Sprockets (203 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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Ball Screws, Lead Screws and ACME Screws (157 companies)
Ball screws, lead screws, and ACME screws are used to convert rotary motion or torque into thrust or linear motion.
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Belt and Chain Tensioners (50 companies)
Belt and chain tensioners apply and maintain correct tension on power transmission drive systems.
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Conveyor Belts (326 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 (149 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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Flexible Couplings (294 companies)
Flexible couplings connect rotating members while allowing some degree of angular or parallel misalignment.
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Gear Manufacturing Services (322 companies)
Gear manufacturing services design and fabricate gears to customer specifications.
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Gearboxes and Gearheads (608 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 (578 companies)
Includes all power transmission gear types, geometry and materials, including English and metric designs.

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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Locknuts, Precision (66 companies)
Precision locknuts are used to secure bearings, gears, and other power transmission products to shafts and spindles.
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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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Power Take Offs (40 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. Learn more about Power Take Offs

Precision Shafting (64 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 (10 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 (140 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 (197 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 (71 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 (52 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 (47 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 Collars (97 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 (105 companies)
Specialty or proprietary products and accessories related to power transmission components. Learn more about Specialty Power Transmission Components

Timing Belts, English Pitch (177 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 (147 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 (18 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 (112 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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Universal Joints (108 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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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 (234 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