Mechanical overload protection device "Torque Keeper TFK Series"
Mechanical load protection device - Torque keeper - TFK
Mechanical protection device that contributes to torque control using fine chemicals in the friction plate.
The Torque Keeper TFK Series is a slipping clutch and brake that controls torque consistently. It features a design focused on long lifespan and wear resistance, which was not achievable with conventional brake linings, as well as the adoption of torque scales and lightweight construction for improved usability. The Torque Keeper is recommended for the braking mechanisms of various industrial machines. By clicking on the <Tsubaki Power Transmission Comprehensive Technical Site - Shock Guard TFK Detail Page>, you can view detailed product descriptions. You can also check for new part numbers, replacement software from old part numbers to new part numbers, automatic drawing services, instruction manuals, 2D CAD & 3D CAD, selection, and troubleshooting, among other things.
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basic information
【Features】 - Long lifespan By adopting a special fine chemical fiber for the friction plate, a lifespan that cannot be achieved with other brake linings is expected. - Stable slip torque It transmits smooth slip torque with minimal torque fluctuations. - Accurate torque reproducibility It transmits stable torque even with high-frequency repeated slips. - Easy torque adjustment Torque adjustment is easy due to the clearly visible torque scale. - Lightweight It uses an aluminum AF flange. - Compact It is very compact compared to other brake mechanisms, helping to save space. - Wide torque range Each size can be selected from a wide torque range. - Easy handling It is easy to handle due to the user-friendly adjustment nut. - No lubrication required Lubrication and cooling are unnecessary.
Price range
Delivery Time
P3
Applications/Examples of results
【Parking Garage Turntable】 It is designed to rotate vehicles exiting the parking lot in the direction of the exit. When the table stops against the stopper in the correct position, the torque keeper slips to protect the drive unit. It is also used in other applications such as printing machines and conveyors, so please feel free to contact us regarding any intended use.
Detailed information
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Application Example 1: Multi-story Parking Garage This is an example of a torque keeper being used in a multi-story parking garage. It is used to protect the drive unit by slipping the torque keeper when the table hits the stopper and comes to a stop.
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Application Example 2: Accumulating Conveyor This is an example adopted in an accumulating conveyor. When the bullet cart hits the stopper, the torque keeper slips and the bullet cart stops. After the work stops, when the stopper is released, the torque keeper returns to a connected state, allowing the bullet cart to be transported to the next process.
Line up（5）
| Model number | overview |
|---|---|
| TFK20 | [Number of Springs] 1L (Weak) 1 (Medium) 2 (Strong) [Set Torque Range] 0.6~11N·m [Shaft Hole Diameter] 9mm~14mm |
| TFK25 | [Number of Springs] 1L (Weak) 1 (Medium) 2 (Strong) [Set Torque Range] 1.8~32N·m [Shaft Hole Diameter] 12mm~22mm |
| TFK35 | [Number of Springs] 1L (Weak) 1 (Medium) 2 (Strong) [Set Torque Range] 5.9~89N·m [Shaft Hole Diameter] 19mm~25mm |
| TFK50 | [Number of Springs] 1L (Weak) 1 (Medium) 2 (Strong) [Set Torque Range] 12~252N·m [Shaft Hole Diameter] 22mm~42mm |
| TFK70 | [Number of Springs] 1L (Weak) 1 (Medium) 2 (Strong) [Set Torque Range] 30~650N·m [Shaft Hole Diameter] 32mm~64mm |
catalog（1）
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Company information
Our company, as a member of the Tsubakimoto Chain Group, is dedicated to providing solutions that meet our customers' needs, focusing our business on three main pillars: chains, precision machinery products, and conveyor systems. In April 2012, we reorganized within the group, and our chain business restarted with a focus on the Tsubaki brand's top chain operations. In recent years, driven by energy conservation and cost reduction, engineering plastic chains have become widespread in various applications that replace traditional conveyor systems, with increasing demand not only domestically but also internationally. The need for products that can withstand harsh operating conditions is also growing, making it increasingly important to provide solutions through optimal products and appropriate engineering services. In this context, we have significantly revamped our structure to consolidate the group's strengths and enhance functionality and efficiency. Our production base, the Kuki Factory, underwent extensive renovations, greatly increasing production capacity, and we completed a new factory building in March 2013. We sincerely thank you for your long-standing support and ask for your continued guidance and encouragement in the future.