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Keyless Locking Devices

Keyless Locking Devices
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Keyless Locking Devices

Product catalog summary
Introduction
This document provides detailed information on Fenner Drives Keyless Locking Devices, focusing on Trantorque and B-LOC systems. It covers specifications, installation procedures, and selection criteria for various applications.
Traditional Connection Methods
Traditional methods like keys and splines are compared, highlighting their drawbacks such as increased costs and maintenance challenges due to backlash and fatigue failures.
Advantages of Keyless Locking Devices
Keyless devices offer a mechanical interference fit with uniform pressure distribution, zero backlash, and the ability to mount on plain shafts. They provide axial and radial adjustability, simple installation, and removal.
Trantorque Series
  • Trantorque GT: Features an external counter-torque flange and limited axial movement.
  • Trantorque Mini: Suitable for small shafts with exceptional concentricity.
  • Trantorque OE: Minimal OD/ID ratio with exceptional concentricity.
  • Trantorque NT: Eliminates axial movement during installation.
  • Trantorque S: Ideal for narrow hub components.
B-LOC Series
  • Series B103: Single taper design with push-off threads.
  • Series B117: Two tapers with high bending moment capacity.
  • Series B106: Single taper with optional spacer sleeve.
  • Series B109: For small shafts with no axial movement.
  • Series B400: Double taper design for easy adjustment.
Specifications and Selection Criteria
Trantorque bushings fit shafts from 1/8" to 3", while B-LOC bushings fit shafts from 1/4" to 24". Selection depends on shaft size, installation method, and application requirements.
Installation Methods
Trantorque uses a single hex nut for quick installation, while B-LOC requires multiple screws for a more complex process.
Design Considerations
Factors include OD/ID ratios, torque transmission, axial movement, and compliance with standards like RoHS.
Application Examples
Examples illustrate the use of Trantorque and B-LOC bushings in various industries, highlighting their versatility.
Made to Order Solutions
Custom solutions are available for unique applications, using special materials and designs.
Engineering Information
Guidelines cover surface finish, concentricity, and temperature influence. Avoid using polymeric components without a metal sleeve.
Additional Considerations
Avoid anaerobic adhesives and consult engineers for applications with multiple bushings.
Keyless Bushings Overview
Designed for self-locking under extreme conditions, suitable for hollow shafts and various materials.
Technical Data
Performance data tables provide information on torque, thrust, and hub pressure for different materials and sizes.
Conclusion
Fenner Drives Keyless Locking Devices offer a modern solution to traditional mounting challenges, providing efficiency, precision, and cost-effectiveness.
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Catalog excerpts

Keyless Locking Devices-1

Locking Devices Trantoroue B-LOC

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Keyless Locking Devices-2

Fenner Drives Trantorque & B-LOC Keyless Locking Devices: Power and Precision ® Fenner Drives, a worldwide leader in mechanical power transmission and motion control solutions, is pleased to present our comprehensive line of Keyless Locking Devices . Only Fenner Drives delivers a product line that offers you quick and easy installation with Trantorque plus the design flexibility and extra heavy duty capacity with B-LOC . Backed by North America’s largest inventory of product ready for sameday shipment, the best customer service support in the industry, and the engineering expertise and manufacturing...

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Keyless Locking Devices-3

• Wide, double taper design for enhanced bending moment capacity • Exceptional concentricity with thru-bored hubs • No axial movement during installation • Available in Standard, Heavy and Extra-Heavy Duty models Series B117 . . . . . . . . . . . . page 32 • Shorter length than other locking assemblies with two tapers • Exceptional concentricity and ability to transmit bending loads • High bending moment capacity (Mb = 0 .65 Mt) • Continuous inner promotes ease of removal • No axial movement during installation Series B109 . . . . . . . . . . . . page 33 • Designed for shafts as small as 1/4"...

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Keyless Locking Devices-4

Fenner Drives Keyless Locking Devices From the moment the wheel came into existence, man has been faced with the seemingly simple task of mounting his invention to a shaft so that something useful could be accomplished . Though it has been over 5,500 years since these rotating components have made their way into use, many designs still utilize mounting methods not much improved from the days of antiquity . These traditional connection methods include: interference fits (shrink or press), keys and keyways, splines and quick detachable bushings. In the sections that follow, we compare and contrast...

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Keyless Locking Devices-5

Why Go Keyless Today’s global marketplace demands precise, efficient machines that optimize productivity while minimizing material and fabrication costs. When compared to traditional connection methods, Fenner Drives Keyless Locking Devices offer the following advantages: A mechanical interference fit with a uniform pressure distribution similar to that achieved through a shrink or press fit. The flexibility to mount over existing keyways if desired. A true zero backlash shaft-to-hub connection with none of the operational drawbacks of keyways or splines. The ability to mount on plain shafting,...

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Keyless Locking Devices-6

Trantorque or B-LOC : the Enduring Question ® Once you have decided that a keyless locking device is the right solution, your next big decision is which series of Fenner Drives Trantorque or B-LOC Keyless Locking Device to choose. While the underlying engineering principle for both Trantorque and B-LOC is exactly the same, the functionality of each may appeal to different applications and situations. Shaft Size Range Overall Length Range Torque Transmission Axial Movement Self Centering SELECTION ASSISTANCE Trantorque GT Trantorque Mini Shrink Discs Selection Assistance

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Keyless Locking Devices-7

SelfLocking Tapers Recessed Installation Without Counterbore RoHS Compliant Very Good Most applications, however, consist of a shaft and bored component that require the use of a keyless bushing. Many more factors play into the proper selection of a keyless bushing and are briefly addressed below and in the accompanying table. Shaft Size Very Good Very Good Shaft size may immediately determine whether you use a Trantorque or B-LOC Keyless Bushing. A Trantorque can accommodate shaft sizes as small as 1/8" (3mm) while the smallest shaft a B-LOC will fit is 1/4" (6mm). At the other end of the spectrum,...

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Keyless Locking Devices-8

Fenner Drives Keyless Locking Devices From precision medical devices to powerful turbines, Fenner Drives Keyless Locking Devices are perfectly suited for use in any industry where there is a need to mount a component to a shaft. Every day, our customers find unique uses for the engineering elegance of our keyless locking devices . The application examples shown are just a small sampling of the many thousands of possible applications for Fenner Drives Keyless Locking Devices . So ask yourself, “What do I need to mount today? ” Trantorque Application Examples 1 Trantorque GT connects a timing pulley...

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Keyless Locking Devices-9

5 Trantorque GT connects a synchronous belt pulley to rear wheel of hybrid vehicle (transparent view) . 6 The Trantorque GT units on this battling robot allowed the designers to eliminate keys and keyways, resulting in a lighter yet stronger machine . 6 8 Trantorque S positions a series of lever arms, greatly simplifying installation and timing . 9 Trantorque NT allows worn conveyor rolls to be replaced quickly and easily . 10 This Trantorque GT — like all of our keyless bushings — features infinite angular positioning, making timing of this run-out table chain drive quick and easy . Trantorque...

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Keyless Locking Devices-10

B-LOC Application Examples 1 B-LOC B106 Keyless Bushing connects a previously welded pin assembly on drilling rig . 3 B-LOC Shrink Discs and WK Series Rigid Couplings facilitate torque-arm mounting of hydraulic drives directly onto the driven shaft, eliminating more expensive and less reliable flexible coupling arrangements . 2 Heavy Duty B112 connects large draw works drum on offshore oil platform . 4 Heavy Duty B112 mounts rotor on an aggregate impact crusher .

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Keyless Locking Devices-11

5 Heavy Duty B112 Keyless Bushings connect barking wheels and kicker arms on a log debarker . 6 B106 connects mill chain sprocket and permits simple timing of matched kicker arms on wood processing infeed table . 8 Standard Duty Shrink Disc provides zero backlash connection for flexible disc coupling on packaging equipment . 9 Medium Duty B115 integrates with modern engineered class pulley design to maximize operating life (transparent view) . 10 Heavy Duty B112 used to mount and set backlash on mating gears driving low speed, high torque augers on a large volume mixer/ dryer . 10 Application...

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