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Overload Safety Couplings

Overload Safety Couplings
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Overload Safety Couplings

Product catalog summary
Overview: The document provides comprehensive information on Torq-Tender® and H-TLC Overload Safety Couplings, which are engineered to protect machinery by disengaging when torque exceeds a pre-set limit.
Specifications: Torque values are determined by precision tempered torque springs, and the device is tamper-proof to maintain consistent torque settings. It supports different torque ratings for various rotational directions and accommodates shaft misalignments. Detailed specifications include dimensions, torque values, and bore sizes for models like TT1X, TT2, TT3, and H-TLC-500.
Procedures: Upon overload, the drive key disengages, and the coupling attempts to reengage after one shaft rotation once the overload is cleared. The document provides a formula for determining torque and emphasizes considering high startup torques.
Mounting Options: Various mounting types are available, such as Through Shaft Mount, End of Shaft Mount, and Shaft-to-Shaft Mount, each with specific applications and benefits.
Materials and Design: Made from durable heat-treated steel, Torq-Tenders are suitable for industrial environments, with special designs available for adverse conditions.
Key Features: The enclosed design allows operation in diverse environments, and the device is bidirectional with adjustable torque settings. It can trigger automatic alarm and shutdown systems.
Standards and Recommendations: The document advises selecting torque values within protection limits and provides a warranty statement. It cautions about guarding rotating equipment and recommends contacting the factory for applications above 1800 RPM.
Applications: Torque limiters are used in mechanical power transmission systems for overload protection, with custom designs available. Correct bore configuration identification is emphasized.
Product Range: Zero-Max offers a variety of products, including ServoClass® Couplings, Schmidt Offset Couplings, and Roh’Lix® Linear Actuators.
Roh’Lix Actuators: These actuators convert rotary motion into precise linear motion, available in five models with thrust ratings from 5 to 200 lbs, featuring built-in overload protection.
CD® Couplings: High-performance couplings with a composite disc design for durability and precision, fully customizable.
Control-Flex Couplings: Zero backlash couplings designed for encoder and instrumentation applications, featuring high misalignment capacity and an electrically isolated hub design.
OHLA® Overhung Load Adaptors: Designed to protect hydraulic motors and pumps from radial and axial loads, with 11 customizable models available.
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Catalog excerpts

Overload Safety Couplings-1

Overload Safety Couplings Torq-Tender® & H-TLC

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Overload Safety Couplings-2

Torq-Tender® Overload Safety Couplings Torq-Tenders are Overload Safety Devices which provide reliable overload protection. When a jam-up or excessive loading occurs the Torq-Tender will reliably and quickly release to prevent system damage. • Standard Torq-Tenders are bidirectional. The torque value is the same regardless of rotation. If specified, the Torq-Tender can be configured at the factory to release at different torque ratings for different rotational directions. • Torq-Tenders are tamper-proof. Once installed, the torque value cannot be changed. This is an important feature that ensures...

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Overload Safety Couplings-3

Mounting Options Shaft-To-Shaft Mount – Type C The shaft to shaft mount option allows the Torq-Tender to function as a shaft coupling and a torque limiter. Either shaft can be used to drive the load unless an actuating pin model is used where the housing (F Bore) end must be the driver for proper pin operation (see instructions). Through Shaft Mount – Type B The Through Shaft Mount is intended to have a shaft pass though the full length of the Torq-Tender. A component such as a sprocket or sheave is mounted externally on the Torq-Tender. Either the shaft or the mounted component can be used to...

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Overload Safety Couplings-4

Torq-Tender® Overload Safety Couplings Shaft to Shaft – Type C Models A B D E G H J K L M INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) See chart on page 8 for bore sizes. Through Shaft – Type B Models A B D G H J K L N O INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) *The ID of the sleeve bearing will be sized to match the C Bore. When ordering this option, only specify one bore.

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Overload Safety Couplings-5

Torq-Tender® End of Shaft – Type S Models A B D G H J K L N O INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MN) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH See chart on page 8 for bore sizes. End of Shaft – Type J Models A G J K L M N O INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM)

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Overload Safety Couplings-6

Torq-Tender® Overload Safety Couplings Type CP, BP, and SP (with Actuating Pin) Models A B G K S T U W INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) NOTE: The 6-6-09 TOM F. SHAFT TO SHAFT Actuating Pin J WITH AC W/ACT. DISC Assembly W is a SHAFT simple pin which J WITH EndTO ofSHAFT Shaft Type JFP (with Actuating Pin) ACT. PIN JF WITH ACT. PIN is forced out radially Models TT1X TT2 TT2X TT3 TT3X TT4X from the main body S L T INCHS 1.562 2.165 2.500T 3.000 3.625 4.625 when overload A U U (MM)T (39.7) (55.0) (63.5) (76.2)S (92.1) (117.5) U occurs. When using W...

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Overload Safety Couplings-7

INCH S 1.562 (MM) (39.7) T U INCH 0.875 B (MM) (22.2) INCH 1.000 G (MM) (25.4) INCH 1.80 K (MM) (45.7)G INCH 0.600 L (MM) (15.2) INCH 0.500 N (MM) (12.7) INCH 2.950 X K (MM) (74.9) INCH 0.970 Y (MM) (24.6) INCH 0.080 Z (MM) (2.0) INCH 0.120 Z1 SHAFT TO(MM) SHAFT(3.0) A W/ACT. DISC JF WITH ACT. PIN SHAFT TO SHAFT W/ACT. DISC U INCH (MM)N INCH (MM) INCH (MM) INCH INCH (MM) INCH Y (MM) INCH Z Y (MM) INCH Z1 K (MM) X INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) W/ACT. DISC End of Shaft - Type JD (with Actuating Disc) SHAFT TO SHAFT Models SHAFT...

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Overload Safety Couplings-8

Torque Chart For example, if your application speed is 100 RPM and the HP rating is 1.5, then: T (in. lbs.) = 63,025 x 1.5 100 Your calculated torque requirement= 945 in-lbs. Torque is a twisting force that causes rotation and can be theoretically determined with the use of this simple formula: Torque (in. lbs.) = 63,025 x HP RPM It is important to note that there are many factors involved in the selection of the torque value. The calculation above represents a theoretical way to determine a torque value. Consideration should also be given to potentially high start up torques in the drive system....

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Overload Safety Couplings-9

Torq-Tender® How to Order Part Numbering Structure CONFIGURATION Code C Shaft to Shaft Coupling CP Shaft to Shaft Coupling with Actuating Pin CD Shaft to Shaft Coupling with Actuating Disc B Through Shaft BP Through Shaft with Actuating Pin BD Through Shaft with Actuating Disc J End of Shaft Type J JP End of Shaft Type J with Actuating Pin JD End of Shaft Type J with Actuating Disc JF End of Shaft Type JF JFP End of Shaft Type JF with Actuating Pin JFD End of Shaft Type JF with Actuating Disc S End of Shaft Mount Outboard load SP End of Shaft Mount Outboard load with Actuating Pin SD End of Shaft...

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Overload Safety Couplings-10

Torq-Tender® H-TLC Torque Limiters The Intelligent Alternative to Friction-Type Torque Limiters. The unique features in the Zero-Max H-TLC give the designer wider parameters in solving overload problems. H-TLC Is Durable. The H-TLC torque limiter is designed for hostile environments. In many applications, a torque limiter may wait for months or years before it is required to disengage. During this time, the torque limiter may be subjected to moisture, corrosion, acids, salts or any number of other contaminants which inhibit the proper operation of the torque limiter and prevent disengagement....

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Overload Safety Couplings-11

Torq-Tender® H-TLC Torque Limiters H-TLC Type C INCH (MM) A INCH (MM) B INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH (MM) INCH INCH (MM) INCH (MM) INCH (MM) L J L J I N KEYWAY O KEYWAY O KEYWAY H C BORE C BORE H1H C BORE H H1 H1 SLEEVE BEARING SLEEVE BEARING SLEEVE BEARING H-TLC Type CD and BD (with Actuating Disc) K K Z1 Z1 ENGAGED ENGAGED Z Z DISENGAGED DISENGAGED Part Numbering Structure SIZE Code Specify for C and CD otherwise omit Shaft to Shaft Mount Shaft to Shaft Mount with Actuating Disc Through Shaft Mount Through Shaft Mount...

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Overload Safety Couplings-12

PRECISE. RELIABLE. ROBUST. AVAILABLE. CD® Couplings Keyless Shaft Locking Devices High-performance couplings that outperform and outlast bellows and steel disc designs. The unique design of the composite disc enables the CD Couplings to withstand punishing applications and deliver high precision performance. Fully Customizable. ETP® keyless connections and Posi-Lok® keyless bushings provide quick, easy and accurate assembly of mounted shaft components. Both inch and metric bore sizes are available from stock. ServoClass® Couplings Crown Gear Drives Designed for demanding servomotor applications....

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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