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ToughTorq™ Shear Coupling


Outer Diameter

Shear Strength

Product country of origin: Canada

Location of the product: Canada

Available: For Sale

Supplier reference: 429546

Original manufacturer: Plainsman Mfg. Inc.


The ToughTorq™ Shear Coupling has been specially designed for use with high torque rod applications such as Weatherford® T66/XD and HD sucker rods and Alberta Oil Tool Drive Rods.


Shear couplings are used to reliably separate the rod string from the bottom hole assembly when the pump seizes or the rod gets stuck.

This prevents the costly and environmentally unfriendly process of pulling tubing and rods out simultaneously.


The ToughTorq™ Shear Coupling has an increased resistance to fatigue in horizontal and deviated wells.

With the integral ToughTorq™ key, it is ideal for reciprocating and rotating rod applications as well as continuous and conventional sucker rods.



• Improved internal torque transmitting key design

• Enhanced flexibility

• Improved material toughness using a proprietary Ni-Cr-Mo alloy

• Reduced stress distribution around shear pins

• Improved surface treatment around high stress areas

• Ideal for vertical, horizontal and deviated wells

• Box-by-box construction

• Threads are formed (cold rolled), not cut, conforming to API 11B

• Precisely calibrated shear pin values

• ISO 9001 ensures full material and manufacturing traceability

• Slim hole diameter


Plainsman Mfg. Inc. is a locally owned manufacturing and distribution company operating out of Edmonton, Alberta since 1966.

We manufacture and distribute products for oilfield production, pipeline maintenance, construction and gas and water distribution. We have an in-house engineering department and a full service manufacturing facility that enables us to respond efficiently to customer and industry needs.

Plainsman is currently operating out of a 44000 sq. ft. facility on the south side of Edmonton. We are dedicated to providing our customers with the best possible service, and maintain a large inventory at our Edmonton location. Continued registration of our ISO 9001 quality assurance system since 1994 also reflects our commitment to quality and service. At Plainsman, we are constantly seeking out new and better products and services to meet our customer’s requirements and the ever-changing demands of the industry.

Over the past 50 years Plainsman has built a solid distribution base which includes oilfield supply stores, OEM’s, PC pump suppliers, chemical pump and instrumentation companies and utility companies principally in Western Canada. We are large enough to effectively look after our customer’s needs and we’re dedicated to providing the kind of personal service and attention our customers deserve.

We pride ourselves on creating a positive company culture that promotes internal career growth opportunities as well as an interesting and enjoyable place to work. What sets us apart from our competition is employee job satisfaction which leads to excellent customer service achieved through the cooperation of all departments.

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