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This section provides an overview for shock guard as well as their applications and principles. Also, please take a look at the list of 14 shock guard manufacturers and their company rankings. Here are the top-ranked shock guard companies as of December, 2024: 1.TSUBAKI OF CANADA LIMITED, 2.Rexnord, 3.HPI Manufacturing, Inc..
Table of Contents
A shock guard is a safety device used to protect machinery from overloads.
Also called an overload protection device, it is used in food and packaging production lines. Installed on a rotating machine, it prevents the machine from being damaged by excessive torque applied due to some abnormality in the machine.
It is attached to a gear called a sprocket, which transmits the rotation of a shaft to a chain. The shock guard can be set, and if the relative speed between the shaft and chain exceeds the set value, the shock guard will spin around.
A shock guard is mainly used in the industrial field as a device to protect rotating machines from overloads.
When cutters are used on production lines, for example, high loads applied to the cutters can cause dangerous accidents. The use of the shock guard in the cutter drive unit increases safety against accidents.
A shock guard is also used in combination with a small shock guard when performing handling operations, such as mechanical handling.
A shock guard consists of a bearing, flange, and drive the ball, and is effective when excessive torque is applied.
Under normal conditions, torque transmission is performed by the drive balls. The drive ball engages a pocket in the flange and is transmitted to the shaft as the flange rotates normally. Alternatively, rotation is transmitted in the opposite direction from the shaft to the flange through the ball. However, if an overload is applied, the ball is dislodged from its pocket on the flange.
The ball slides between the plate and the flange, preventing torque from being transmitted from the shaft to the flange. The torque threshold can be set arbitrarily in a shock guard.
If an overload occurs, the rotation is stopped to eliminate the cause. When the overload is removed, the ball and pocket will re-engage and the machine will operate normally (automatic recovery method).
*Including some distributors, etc.
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HPI Manufacturing Inc., founded in 1945, is an American manufacturer of industrial tools based in Hamden, Connecticut. The company’s product lineup includes pipe processing tools, such as portable band saws, power hacksaws and drives, and tri-stand chain vises. The company also develops standard and custom motion-control tools, such as detent and friction torque limiters as well as one-way and over-running clutches. It further offers customized contract manufacturing, ranging from assembly and computer numerical control (CNC) machining to injection molding.
Rexnord, is a Regal Rexnord Brand, founded in 1948, and is a manufacturer of industrial lead products for the toughest applications. The products include bearings, conveying solutions, couplings, gears, industrial chains, and PT drive components. Smart solutions include smart condition monitoring systems, smart tags, and digital productivity platforms for use in aerospace, mining, beverage & food, energy, and marine markets. The Milwauke, Wi company offers services such as coupling re-certification, gap walk, gearbox repair & upgrade, custom gears & drives, and installation & rebuild services.
G&G Manufacturing Co. is an American manufacturer of power transmission products and parts that was founded in 1943. Based in Omaha, Nebraska, the company produces over 3,500 standard transmission components including light duty sheaves and bushings, sprockets, power take-off (PTO) drivelines, and roller chains. These are used by clients in the material handling, military, mining, and agricultural sectors. G&G also offers engineering and fabrication services for customer projects that have unique specifications.
Hersey Clutch Co. (HCC) is an American manufacturer of torque limiting and shaft coupling equipment established in 1963 and based in Orleans, Massachusetts. Under the brand Protek-Sure, the company produces various products, including rigid and flexible shaft couplings, torque limiting devices for minimizing damage to power transmissions, and process control devices for monitoring and controlling torque or shaft performance. These have applications in industrial manufacturing, food processing, medical device production, and automated packaging systems. HCC also offers contract manufacturing, product development, engineering, and fabrication services for clients in need of custom solutions.
Brunel Corporation, founded in 1988 and located in Twin Oaks Street, Wichita Falls, USA, is a manufacturer and distributor of torque limiters. The company’s product line includes torque limiters, safety element modules, load monitors, ABB filters, and proximity sensors. Its products find applications in mining, plastics, recycling, steel, and gear coupling applications. Its safety element modules are specifically designed to provide overload protection for applications where very high torques are transmitted and to extend the range covered by Brunel-type JA units.
Tsubakimoto Chain Co. is a Japan-based manufacturer of power transmission and roller chain products, founded in 1917, and headquartered in Osaka. Their power transmission products include drive chains, conveyor chains, automotive timing drives, sprockets, hose, and cable carrier systems, as well as timing belts, reducers, locking devices, shaft couplings, and clutches. Their products are for power transmission, material handling, factory automation, and physical distribution systems. Tsubakimoto Chain is certified as an Eco-First Company by the Ministry of the Environment.
Changzhou Tianniu Transmission Equipment Co, Ltd, established in 2013 and headquartered in Changzhou, China, is a manufacturer of transmission components. The company's transmission components include electromagnetic clutches, torque limiters, and shaft couplings. Its shaft couplings offer zero rotation clearance, high torque, and rigidity, with setscrew or clamping screw installation options, while its electromagnetic clutches provide high-speed response, adjustable torque, and easy assembly. Its flexible propeller shaft couplings, including clamping, sliding, and spring types, facilitate 45 or Q275 steel materials. The company's elastic-free sliding shaft coupling ensures consistent bearing load across shaft displacement, offering cost-effective solutions with customizable slider materials.
Chr. Mayr GmbH + Co. KG (mayr power transmission), founded in 1897, is a manufacturer headquartered in Mauerstetten, Germany, specializing in safety brakes, torque limiters, and shaft couplings. mayr power transmission operates manufacturing facilities in China and Poland, offering spring-applied safety brakes designed as holding brakes. These brakes ensure the safety of individuals and protect machines, particularly in applications such as elevators, escalators, and automated guided vehicles (AGVs). Additionally, the company manufactures torque limiters and shaft couplings, primarily used for torque transmission as well as force and torque limitation. These products find applications in various industries, including test stand technology.
KTR Systems GmbH, established in 1959, is a manufacturer headquartered in Rheine, Germany, specializing in industrial drive technology. The company offers a range of mechanical components for drive technology, including couplings and torque limiters, designed to enhance energy efficiency and power density. In 2014, KTR Brake Systems GmbH was established as a subsidiary, offering hydraulic brake systems known as KTR-STOP and electromechanical brake systems called EMB-STOP. Additionally, KTR Systems develops hydraulic components and provides cooling systems for stationary hydraulics and mobile machines. The company's products are utilized in various industries, including the wind power, agriculture, machine tools, and automation sectors.
TOK America Inc., established in 2016 in the USA, is a manufacturer of mechanical and motion control components and parts for commercial and industrial clients. The company's product line includes ball bearings, one-way clutches, rotary dampers, torque limiters, and guides used in furniture, electrical appliances, home appliances, office equipment, and medical devices. TOK America specializes in the use of stainless steel, steel, ceramic, polyacetal, polyethylene, polyetheretherketone, and PVDF (polyvinylidene fluoride). The company also provides custom product design, testing, and production services.
Kavitsu Transmissions Pvt. Ltd., established in 1992 in Satara, India, is a manufacturer and supplier of planetary speed reducers, bevel gearboxes, and torque limiters. The company’s product line includes planetary gearboxes, worm gearboxes, mechanical power transmission systems, planetary winches, and geared motors. It provides various gearboxes handling the power inputs up to 1250 kW. The speed reduction ratios are up to 100,000:1. The weights of the gearboxes range from 150 gms to 43,000 Kg (single gearbox weight). It serves steel, chemical, textile, mining, and windmills industries.
Pethe, established in 1965, is a manufacturer and supplier of electromagnetic brakes and clutches, motors, and crane controls in Mumbai, India. The company’s product line includes electromagnetic brakes, flame-proof brakes, clutch brake combinations, electro-hydraulic thruster brakes, and brake drum couplings. Its products find applications across sectors such as material handling and lifting equipment, cross-travel and long-travel equipment, winches, elevators, and construction machinery. Its clientele includes organizations like Bharat Heavy Electrical Limited, Steel Authority of India, and Hercules Hoists Limited.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | TSUBAKI OF CANADA LIMITED |
20.0%
|
| 2 | Rexnord |
20.0%
|
| 3 | HPI Manufacturing, Inc. |
20.0%
|
| 4 | TSUBAKIMOTO CHAIN |
20.0%
|
| 5 | KTR Systems GmbH |
20.0%
|
Derivation Method
The ranking is calculated based on the click share within the shock guard 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
|
5 | 50.0% |
|
Japan
|
2 | 20.0% |
|
China
|
1 | 10.0% |
|
Germany
|
1 | 10.0% |
|
India
|
1 | 10.0% |
26 products found
26 products
MF Sales Co., Ltd.
30+ people viewing
■Corner curing material for permanent installation - Soft feel and easy installation. ・For installation, please use commercially available adhesiv...
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Daiki Sangyo Co., Ltd.
180+ people viewing
Last viewed: 1 day ago
Standard Response
■Small and medium size types available. Introducing friction type overload protection equipment. We would like to introduce the "OCM Torque Limiter...
5 models listed
Sunk Japan Co., Ltd.
610+ people viewing
Last viewed: 4 hours ago
Standard Response
It is for control of robots and handling units in case of collisions or overloads. Advantages and benefits ■ Automatic reset Production can be res...
10 models listed
Sunk Japan Co., Ltd.
460+ people viewing
Last viewed: 11 hours ago
Standard Response
It is for control of robots and handling units in case of collisions or overloads. Advantages and benefits ■ Trigger power and torque can be adjus...
5 models listed
Kimoto Rubber Industries Co., Ltd.
30+ people viewing
Last viewed: 1 day ago
Standard Response
■Summary A large corner guard with an end cap. It can be used as cushioning material for the rising corners of pillars in multi-story parking lots,...
MF Sales Co., Ltd.
50+ people viewing
■Corner curing material for permanent installation - Soft feel and easy installation. ・For installation, please use commercially available adhesiv...
MIKI PULLEY CO., LTD.
230+ people viewing
Last viewed: 1 day ago
Overload is reliably detected, and when the drive key is removed from the groove, input and output are separated, and when the overload is removed,...
2 models listed
