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This section provides an overview for sheaves as well as their applications and principles. Also, please take a look at the list of 25 sheaf manufacturers and their company rankings. Here are the top-ranked sheaf companies as of December, 2024: 1.J.C. Renfroe & Sons, 2.Electrolift, Inc., 3.Drive Components LLC.
Table of Contents
A sheave is a wheel or pulley through which a rope or wire rope is threaded.
Sheaves typically serve as blocks attached to either the end or the middle of the boom (arm) of a crane. The rope or wire rope is threaded along the groove of the sheave, enabling the crane load to be lifted or lowered by pulling on the rope.
They also provide high strength and durability and are an important factor in the crane's precise operation. Depending on the type of crane and its application, there are a variety of types, from single grooves to those with numerous grooves.
The following are some examples of uses for Sheaves:
Sheaves function as blocks attached to the boom of a crane to lift and lower loads through a rope or wire rope. By using Sheaves, the load lifting force is evenly distributed and the load can be efficiently maneuvered.
The use of sheaves on cranes allows loads to be moved and placed precisely at specific locations. Sheaves facilitate the transportation and placement of loads, especially when handling heavy or large loads.
The crane's boom can be extended to reach objects at great heights. Sheaves can be attached to the end of the boom to help lift loads from heights or position loads in high places.
Sheaves are useful in performing complex lifting operations with multiple ropes or wire ropes. Multiple Sheaves can be used in combination to lift higher loads.
The principle of Sheave is based on the principle of the pulley. The pulley principle is a mechanism that amplifies force by changing the direction of the force. By using a sheave, the force required to lift an object can be reduced.
This is because Sheaves can disperse the force by wrapping around a rope or wire rope multiple times.
When a sheave consists of a single wheel, the incoming force (pulling force) and the outgoing force (lifting force) are in the same direction. No force amplification takes place, but the crane operation is facilitated by changing the direction of the rope.
When a sheave consists of multiple wheels, the rope is wound around the sheave multiple times. In this case, the tension in the rope is distributed, reducing the pulling force required to lift the same load. This effect allows heavy loads to be lifted with less force.
The principle of the pulley allows Sheaves to improve the efficiency of the crane and increase its ability to lift large loads.
The following are common types of sheaves:
The most basic type of sheave consists of a single wheel. The load is lifted by passing a rope through the sheave and wrapping the rope around the wheel. The force is not amplified, but the crane can be operated by changing the direction of the rope.
This is a sheave with two wheels mounted side by side. The rope wraps around the Sheave twice, thus reducing the pulling force required to lift the load. Double Sheaves are suitable for lifting larger loads than single Sheaves.
This sheave has three wheels mounted side by side. A rope can wrap around the Sheave three times, further amplifying its power and allowing it to lift large loads. Triple sheaves are used when very heavy loads need to be lifted.
This is a one-piece sheave with multiple wheels built in. They are usually double block (two wheels) or triple block (three wheels). Block sheaves are compact and easy to operate while having the ability to lift high loads.
This is a specially shaped sheave in which the rope wraps around the outside of the sheave. The high sheave is attached to the end of the crane's boom and is suitable for lifting work at high elevations or in curved locations.
These are common types of crane sheaves, but customized sheaves are sometimes used for specific cranes or applications.
*Including some distributors, etc.
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Electrolift, Inc. is a custom manufacturer of hoisting products and solutions that was established in 1932 in Clifton, New Jersey, USA, as a member of the Hoist Manufacturers Institute. The company specializes in producing hoisting equipment built to customer specifications. These include single or twin hook hoists, base mounted hoists, and individual hoist components or parts. It also offers hoist commissioning, installation, and site personnel training or support. The company’s products are mainly used in construction, port, and logistics operations.
Martin Sprocket & Gear, Inc. (MSG) is an Arlington, Texas-based manufacturer and supplier of power transmission products, material handlers, and industrial hand tools. Founded in 1951, the company primarily serves clients in the pulp and paper, petrochemical, automotive, and agriculture industries. The company produces various products including conveyors, sprockets, sheaves, bushings, and custom products for client companies like John Deere and General Electric. MSG has over thirty operating plants across the United States, with retail locations and storage facilities on three continents.
Drive Components has been a manufacturer of industrial power transmission products based in Ohio since it was established in 2010. The company deals in industrial shaft couplings that are available in various styles like grid, gear, tire, and Max Dynamic Couplings and they also provide pulleys, bushings, and sheaves for V-Belt Drives. The products can be altered for compatibility with industry-standard designs such as their Pumping systems, Overhead Cranes and Hoists, Bulk Material Handling Systems, Hammermills, Grinders, Crushers, and alike are available and can be altered to serve Mining industries, Primary Metals Industries, Rubber and Plastics and Pumping Industries.
J.C. Renfroe & Sons, founded in Rockford, IL in 1940, is a manufacturer of lifting products. The company's product portfolio includes Wire Rope Hoists, used to provide robust and efficient lifting solutions for various load capacities. It also offer Chain Hoists, which provide compact and durable options for precise load control and elevation. In addition, the company provides a wide range of slings designed for secure and efficient load attachment, along with specialized lifting products for unique applications.The company serves various markets, including Medical and Healthcare, Warehousing, Consumer Goods, Industrial Manufacturing and Construction and Building.
Gates Industrial Corporation began in 1911 in Denver Colorado where the company remains today, with additional headquarters in Europe and Asia. The company is a manufacturer of power transmission and fluid power solutions to customers around the world in industries such as agriculture construction, automotive, mining, and heavy-duty industrial equipment. The company’s products include CVT transmission belts, serpentine kits, hydraulic hoses, electric water pumps for electric vehicles, and rubber synchronous belts used in material handling applications.
Congress Drives, established in 1915, is a manufacturer of zinc and aluminum cast pulleys and custom die cast components suxh as groove pulleys, variable pitch pulleys, and step cone pulleys used in HVAC and refrigeration applications, evaporative coolers, overhead door operators, air moving blowers, and agricultural equipments. The company has a 9001 certified facility in Fenton, Missouri has manufacturing capabilities die casting, machining, finishing, proactive purchasing, and warehousing. The company is a member North American Die Casting Association.
Jerl Machine, Inc., established in 1974, and located in Perrysburg, Ohio, is a custom manufacturer specializing in precision machining and custom metalworking. Its services includes CNC turning, milling, machining, forging, as well as, keyseating, bending, casting and welding, which serves in industries such as aerospace, automotive, and food & product packaging. The company is also capable of repairing escalator or elevator parts and subassembly. Grinding, repair and honing services are also few of the additional services provided.
McKees Rocks Forgings, Inc., established in 1986 in McKees Rocks, Pennsylvania, is an ISO 9001 certified manufacturer of standard and custom forged products. Their extensive product range, including crane wheels, gear blanks, sheave wheels, mining components, and industrial wheels used in diverse industries such as automotive, aerospace, defense, oil and gas, power generation, and industrial machinery. The company upholds ISO 9001 standards throughout the forging process, ensuring rigorous control protocols and employing advanced testing and inspection methods.
The David Round Company, Inc. was founded in 1869 and is based in Streetsboro, Ohio. The company is one of the world’s oldest hoist manufacturers. The company’s customers include Pfizer, General Mills, Ford, and Exxon Mobile, representing pharmaceutical, food processing, automotive, and oil & gas industries. The company’s custom-engineered hoists and related products include jib cranes, winches, and tractor drives. The company custom engineers machines and replacement parts to fit individual customer needs for projects both large and small.
Sinopac Group, established in Rancho Cucamonga, California, in 2002, is a manufacturer of CNC machines and drill tapping machines. The company's product portfolio includes High-precision machines for milling, turning, and drilling operations, as well as sub machines and power metal injection machines, used in industries such as Electronics and Telecommunications, Automotive, Transportation and aerospace and Defense. The company provides Quality Assurance, Technical Support, national distribution, customized services and customer support.
Suncor Stainless, Inc. is based in Plymouth, Massachusetts. Suncor Stainless serves the industrial, marine, architectural, commercial, government, and OEM markets as a manufacturer of stainless steel hardware and components. Suncor Stainless is ISO 9001:2015 certified. Suncor Stainless’s services include custom stainless steel manufacturing, product testing and quality assurance, strength testing, metal content testing, custom webbing, custom stainless steal chain assemblies, custom threading, machine swaging, corrosion resistance testing, and retail packaging. Suncor Stainless also supplies numerous components such as sheaves, hooks, and clips.
WS Hampshire, Inc., originally formed in the 1890s as" The Western Slate Company", is a full-line custom fabricator and distributor of non-metallic insulation materials, which are used in various industrial applications, including bearings, bushings, sheaves, and wear pads. The company occupies a 135,000-square-foot facility in Hampshire, Illinois, and also produces OEM-quality fabricated components, as well as small volume make-to-order parts within a job shop environment. They are supported by customized supply chain programs. The fabricated components are supplied to various marketplaces, including Capital Equipment OEM, Electrical, Heavy Equipment/Vehicle, Primary Metals, Pulp & Paper, and MRO.
The Conveyor Guys was established in 1988 and is headquartered in Marlborough, Massachusetts. The company is a designer and manufacturer of industrial conveyor systems for 3PL, warehousing, and retail customers across most of the United States including Amazon, Staples, and Verizon. The company’s 3 product lines are Conveyors, Material Handling, and Parts. The company offers services encompassing all facets of use including design, installation, service, repair, expansion, and reconfiguration of conveyors and machine handling equipment.
Metro Sprocket & Gear, Inc. was established in 1985 and headquartered in Midlothian, Texas. The company manufactures custom gears, sprockets, and prototype parts used in agricultural machinery, construction equipment, power transmission equipment, machine tools, and other applications. The company’s product segments include splines and custom, helical, plastic, and worm gears. The company’s custom servicing options include several CNC and milling. Heat treating, milling, surface grinding, and other alteration options are also available.
Atlantic Rigging Supply, founded in Westbrook, CT in 1997, is a supplier of marine hardware for both marine and non-marine end users. The company's product portfolio includes Clutches and jammers, Complementary Hardware, Deck Organizers, Friction Rings and drilling Units. The company serves markets such as marine, sailing, Aerospace and Defense, Consumer Goods and Construction and Building. The company also provides services such as Product Selection Guidance, warehousing and distribution, repair services and customer and technical support.
MasterDrive, founded in Atkinson, WI in 1998, is a supplier of power transmission components. The company's product portfolio includes Roller Chains and Sprockets, Belts and Pulleys systems, Couplings to enable torque transmission and misalignment compensation and tailored components for unique machinery needs. Their products are used in production machinery and assembly lines, power transmission systems in vehicles, from engines to drivetrains, Industrial Equipment and power transfer solutions for diverse applications.
HOLLISTER-WHITNEY, founded in Quincy, IL in 1899, is a supplier of elevator equipment. The company's product portfolio includes Geared Overhead Traction, Basement Set Traction Machines, Overhead Deflector Machines, Gearless Machines and Rope Grippers. Their products are used for securing door mechanisms for efficient entry and exit and prioritizing passenger safety, energy efficiency, and smooth operation. The company serves markets such as Real Estate, Commercial Spaces, Residential Buildings and Construction and building.
Wichard, Inc. is an American distributor of stainless steel hardware and fastening components that was established in 1994 as a North American subsidiary of France's Wichard Group. The company distributes various forged stainless steel hardware products, including swivels, shackles, hooks, and eye nuts. They also offer different related fastening components such as chain connectors and quick links, having a broad range of demanding applications, including in end products like parachutes and medical devices. Wichard, Inc. handles all North American marketing and distribution operations for Wichard S.A, which chiefly serves clients in the yachting and outdoor sports markets.
Capital Machine Corporation was established in 1946, in California and is known as a supplier of machining services. Besides providing general machine and industrial repairing services the company also offers welding procedures including MIG, TIG, Stick, and Wire GAS, along with the fabrication of Custom Sheet and Structural Metal. Their services list also includes reconditioning, repairing, and rebuilding all types of Gearboxes, Locomotive Turntable Trucks, Drives, and Bearings along with repairing industrial pumps and manufacturing pump components for brands like Worthington. Numerous industries are served by Capital Machine, some of them being Steel Processing, Plastics, Agriculture, Mining, and more.
Ronstan International Pty Ltd, founded in Victoria, Australia in 1954, is a manufacturer of Sailboat Hardware. The company's product portfolio includes batten systems, blocks, cleats & clutches, custom products and fall protection systems. Their products are used for recreational sailing through efficient sail control and safety, competitive advantage with hardware that optimizes sail trimming and responsiveness, and ensuring user-friendly hardware solutions for long voyages and navigation. The company has operations in 45 countries and a global distribution channel.
ROPEBLOCK, founded in The Netherlands in 1994, is a manufacturer of lifting & rigging hardware. The company's product portfolio includes off-the-shelf sheaves and turnbuckles, custom sockets and intricate, Crane blocks, Wire rope sockets, and Hook blocks. Their products are used to enable safe lifting and positioning of building materials and equipment, support material handling processes in factories and production facilities, and provide robust hardware solutions for offshore and onshore applications and heavy-load handling.
Peerless Hardware founded in 1908 in Connecticut, USA is a manufacturer of industrial hardware such as latches, hinges, handles, locks, and other components used in various industries such as transportation, construction, and agriculture. The company's main focus is on producing custom metal components for OEM production, although they also have a diverse product line that they manufacture and keep in inventory for sale. The company's products are designed to withstand harsh environments and heavy use, making them ideal for demanding applications.
Bear Equipment, Inc., located in Buffalo, New York, has been a custom manufacturer of wire rope sheaves since 1982. The company offers custom and standard wire rope sheaves made from various materials such as steel, aluminum, stainless steel, and nylon which are precision machined or formed according to strict tolerances and standards. Their products are used to support wire rope, ensuring smooth and efficient operations in various industries such as construction, mining, material handling, and transportation. They also offer the installation of bearings and bushings in their sheaves, providing a fully assembled and ready-to-use product.
P.T. International, also known as PTI, was founded in 1994 and is headquartered in Charlotte, North Carolina. PTI is a distributor of European metric and American standard industrial power transmission products, serving the food/beverage, wood products, steel, automotive, and other industries. PTI’s 3 product segments are bearings, power transmission components, and linear products. PTI also offers value-added services including bearing forensics, private branding & custom labeling, custom projects, and new product designing. PTI is ISO 9001 certified.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | J.C. Renfroe & Sons |
14.3%
|
| 2 | Electrolift, Inc. |
4.8%
|
| 3 | Drive Components LLC |
4.8%
|
| 4 | Ronstan International Pty. Ltd. |
4.8%
|
| 5 | ROPEBLOCK |
4.8%
|
| 6 | Martin Sprocket & Gear, Inc. |
4.8%
|
| 7 | Capital Machine Corp. |
4.8%
|
| 8 | Congress Drives |
4.8%
|
| 9 | Jerl Machine, Inc. |
4.8%
|
| 10 | Bear Equipment, Inc. |
4.8%
|
Derivation Method
The ranking is calculated based on the click share within the sheaf page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
20 | 95.2% |
|
Australia
|
1 | 4.8% |
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