This section provides an overview for ring shims as well as their applications and principles. Also, please take a look at the list of 12 ring shim manufacturers and their company rankings. Here are the top-ranked ring shim companies as of November, 2024: 1.Walterscheid GmbH, 2.Aspen Fasteners Inc., 3.MIKI PULLEY CO., LTD..
Table of Contents
A ring shim is a specialized shim designed to adjust position, level, and spacing between parts or between parts and equipment. Characterized by their ring shape and uniform thickness, ring shims facilitate the absorption of dimensional and accumulated tolerances during the assembly of multiple parts, enabling precise positional adjustments in the field.
Ring shims find widespread use in machinery and equipment assembly, where precise spacing or positional adjustments between components are required. Their applications include:
Inserted into the inner and outer rings of bearings, ring shims aid in securing and adjusting positions axially. They are crucial for setting bearing preload in angular and tapered roller bearings by aligning the inner and outer rings. Similarly, ring shims adjust the shaft positions of gears and pulleys, mirroring their application in bearings.
Ring shims enable positional adjustments at screw or bolt fastening surfaces without the need for specially shaped shims. By inserting ring shims into threaded holes, the fastening surfaces' positions can be finely adjusted, also facilitating height adjustments for pins.
Placed around the inner and outer circumference of flange surfaces, ring shims allow for positional adjustments without special shim shapes, avoiding fastening holes for seamless integration.
Ring shims serve as precision components for fine-tuning spacing and positions, thanks to their uniform thickness and ring shape. They are available in a broad range of thicknesses, from tens of micrometers to several millimeters, and are made from materials like steel, stainless steel, copper, and brass.
Beyond the standard ring shape, ring shims come in several variations:
Notched (or split)-type ring shims feature a partial notch, allowing for easy insertion and removal during assembly without fully disassembling bolts or shafts. Caution is advised to prevent tilting by avoiding notch alignment when using multiple shims.
Laminated ring shims consist of ultra-thin layers bonded together, enabling thickness adjustments by peeling off layers as needed.
When using ring shims, it's essential to minimize the stack to avoid contamination or alteration of thickness. Ring shims are distinct from washers and spacers, which are used for more significant height adjustments. Often, ring shims are marked or color-coded for easy identification of thickness and to prevent loss or reflectivity issues during assembly.
*Including some distributors, etc.
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Huyett, established in 1906 and headquartered in Houston, Texas, is an ISO 9001:2015 certified manufacturer of industrial fasteners and related products. The company offers an array of pins like cotter pins and spring pins, retaining rings such as external and internal rings, key stock in shapes like square and hexagonal, various types of grease fittings, and a range of O-rings including buna-n, viton, and silicone varieties. These components serve diverse applications in securing, aligning, transmitting torque, reducing friction, and sealing against leakage in machinery and structures.
Big River Rubber & Gasket Co., founded in 1978 and headquartered in Owensboro, Kentucky, USA, serves as an industrial distributor of elastomeric, polymeric, and related maintenance, repair, and operating supplies. The company offers a diverse product range, including hydraulic hose assemblies for high-pressure applications, conveyor belting for material transportation, custom cut gaskets to prevent fluid or gas leakage, industrial sewing metal fabrications, and rubber tubing used in fluid handling and insulation.
Miki Pulley Co., Ltd., founded in 1939, is a manufacturer and provider of solutions for power transmission and control problems, headquartered in Kawasaki City, Japan. They manufacture various products essential for all industries, including couplings for high-precision power transmission, electromagnetic clutches and brakes for power transmission when energized, and speed changers and reducers for controlling the speed of machinery. They also offer inverters, linear shaft drives, rotation speed indicators, torque limiters, and ROSTA rubber springs.
Sodemann Industrifjedre A/S, founded in 1989 in Hinnerup, Denmark, is a manufacturer of a diverse range of industrial springs. The company is ISO 9001 certified and is rated AAA for superior products in the segment. The product portfolio includes tension springs, compression springs, torsion springs, and wire forms, all meticulously crafted to meet exacting standards. These springs offer benefits such as stable load-bearing capabilities, resistance to corrosion, and the ability to withstand challenging environmental conditions, ensuring longevity and performance. The springs find applications across various industries, including automotive, construction, aerospace, and manufacturing, serving both domestic and international markets.
Walterscheid GmbH, established in 1919 and headquartered in Lohmar, Germany, is a manufacturer of agricultural machinery components and tools. The company's product lines include a range of driveshafts, tractor attachment systems, clutches, hitches and special tools like joint and coupling assembly and test gauges. It develops tractor attachment systems or complete drive systems using its components that are based on an integrated concept made up of shaft assembly, overload safety device and gearbox. The company has designed the Ultra Plus system that can be employed in its PTO driveshafts for better performance, functionality and service life.
J. C. Gupta & Sons was established in 1993 as a manufacturer and supplier of fasteners based in Bengaluru, India. The company makes JCPlas Plastite Screws, which are used for strong connections in plastics, and ALLEN Screws which are available in different coatings. There are also BAER Threading Tools, BAERCOIL and BAERFIX Thread Repair and Reinforcement inserts, taps and relevant tools, and various anchors and fixings and these tools have applications in the aerospace, mining, marine furniture, and construction industries just to name a few.
Stephens Gaskets Ltd, established in 1947, is a British manufacturer of pressed parts, located in Oldbury, West Midlands. The company's offerings include shims, thin pieces of material that fill gaps to maintain level surfaces, as well as washers, disc-shaped materials that distribute loads concentration to reduce vibration. Moreover, the company offers gaskets made of various materials, including cork, rubber, and neoprene. Selections of raw, sheeting, and strip materials are also available, like copper, steel, and stainless steel. The company provides laser cutting services, tailored for both metal and polymer sheets, as well as die cutting services, designed for lower strength materials.
Peel-Plate GmbH, founded in 1989 and headquartered in Langfurth, Bayern, Germany, is a manufacturer of optimal-quality shims, shim washers, laminated metal sheets, and fitting plates. The product range includes precision-engineered shims and washers, which provide critical adjustments and alignments in various mechanical and industrial applications. These products offer benefits such as precise tolerances, durability, and resistance to corrosion and wear, ensuring the longevity of machinery and equipment. The laminated metal sheets and fitting plates are designed for structural applications, providing strength, stability, and adaptability in construction projects. The products find applications across diverse industries, including aerospace, automotive, construction, and manufacturing.
Designatronics is based in New York, New York, USA, and is a manufacturer of mechanical products and components that was established in 1960 following the acquisition and subsequent merger of Quality Bearings & Components, QTC Metric Gears, SDP/SI, and Wybur Tools. The company’s products include belt and chain drives for enabling motion and power, gears for transmitting motion and power, and various shafts for supporting and connecting assembly components. The company’s products are used mainly by clients in the aerospace, automotive, and defense sectors.
Iwata Mfg. Co., Ltd., established in 1966 and headquartered in Gifu, Japan, is a manufacturer of commercial machinery components and power transmission equipment. The company offers a wide range of products, including bearing rollers, end plates, leveling systems, nameplates, and seals. It also provides set collars, shims, sensor brackets, and trims. Its product requires less maintenance than oil-injected air compressors because it doesn't require oil changes or filter replacements. It serves a diverse range of industries, including coating applications, refinishing applications, manufacturing, and vacuum pumps.
Aspen Fasteners was founded in 1961 and headquartered in Las Vegas, Nevada. Aspen Fasteners is a distributor for industrial fasters. Aspen Fasteners offers an extensive line in both metric and inch standards of anchors, bolts, nuts, screws, washers, rings, pins, pipe plugs, rivets, inserts, rods, studs, spacers, standoffs, panel fasteners, and tools including adapters, drivers anchor setting tools, keys, measuring tools, screwdriver insert bits, and screwdriver power bits. Material types include aluminum, brass, copper, iron, lead alloy, monel nickel copper alloy, nylon, phosphor bronze, plastic, silicon bronze, stainless steel, steel, and zinc.
Ranking as of November 2024
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | Bossard Holding AG |
13.3%
|
2 | Walterscheid GmbH |
13.3%
|
3 | Aspen Fasteners Inc. |
13.3%
|
4 | MIKI PULLEY CO., LTD. |
13.3%
|
5 | Designatronics |
6.7%
|
6 | Sodemann Industrifjedre A/S |
6.7%
|
7 | J C Gupta & Sons. |
6.7%
|
8 | Stephens Gaskets Ltd |
6.7%
|
9 | peel-plate GmbH |
6.7%
|
10 | Big River Rubber & Gasket Co. |
6.7%
|
Derivation Method
The ranking is calculated based on the click share within the ring shim page as of November 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 | 2 | 20.0% |
Japan | 2 | 20.0% |
Germany | 2 | 20.0% |
Denmark | 1 | 10.0% |
India | 1 | 10.0% |
United Kingdom | 1 | 10.0% |
Switzerland | 1 | 10.0% |