Linear Rail System maintains accuracy while moving loads.

Press Release Summary:

Offering stroke lengths of 1–18 in., Model BGS04 is based on linear actuator driving 303 SS precision lead screw. System is available with size 11 double stack or size 17 single stack hybrid linear actuator, depending on load requirements. Lead screw drives anti-backlash nut embedded in machined aluminum carriage mounted to stainless steel ball rail. Maximum horizontal load is 22 lb, and maximum roll, pitch, and yaw moments are 5.72, 4.88, and 5.68 lb-ft, respectively.

Original Press Release:

Haydon Kerk Motion Solutions Introduces The BGS04 Linear Rail System

WATERBURY, CT - Haydon Kerk Motion Solutions, a division of AMETEK Precision Motion Control, introduces the BGS04 Linear Rail System—the first model in a new linear rail platform designed specifically for high moment loads.  The roll, pitch, and yaw moment load capability of the BGS04 allows the system to maintain tight accuracy and repeatability even in applications requiring significant cantilevered loading.

At the heart of the BGS04 is a Haydon™ linear actuator driving a Kerk® 303 stainless steel precision lead screw.  The screw is coated with Black Ice® TFE coating providing a permanent wear-resistant dry lubrication.  The lead screw drives an anti-backlash nut embedded in a machined aluminum carriage mounted to a stainless steel ball rail. The result is a rigid, smooth operating motion system. Depending on the load requirements, the BGS04 linear rail is available with either the Size 11 (28mm) double stack or Size 17 (42mm) single stack hybrid linear actuator. 

The BGS04 is carefully designed to maintain accuracy while moving heavy loads.  Maximum roll, pitch, and yaw moments are 5.72 lb-ft (7.75Nm), 4.88 lb-ft (6.60Nm), and 5.68 lb-ft (7.70 Nm), respectively.  Maximum horizontal load is 22 lb (100N).  Lead screw resolution available for the BGS04 ranges from 0.025-in (0.635mm) to 1.00-in (25.40mm) per revolution. 

When combined with a 200 step/rev stepper motor, linear positioning resolution is greatly enhanced to a range of 0.000125-in (0.003mm) to 0.005-in (0.127mm) per input pulse.  Stroke length of the BGS04 is 1-in (25mm) to 18-in (460mm).

If the application requires the size 17 linear actuator, an IDEA™ drive system is an available option, resulting in an integrated linear rail, actuator, and programmable drive package.  When integrated with an IDEA Drive, the system combines Haydon hybrid linear actuator technology with a fully programmable, integrated stepper motor drive.

By combining technologies into a single preassembled unit, Haydon Kerk Motion Solutions is able to improve system integration for the equipment OEM or end user. The overall cost for the customer also is lowered by offering a complete solution that eliminates the need for rotary-to-linear conversion resulting in simplified product development.

Cornerstones of the Haydon Kerk Motion Solutions advantage are design and manufacturing flexibility.  The BGS04 can be further customized to better suit a customers’ unique design.  This includes, but is not limited to, custom wire harnesses, load carriages, and mounting configurations.  For more information, visit

About Haydon Kerk Motion Solutions, Inc.

Haydon Kerk Motion Solutions is a unit of AMETEK, Inc., a leading global manufacturer of electronic instruments and electromechanical devices with annual sales of more than $3.0 billion.  For more product information and CAD links, visit or to contact an engineer to discuss a specific application, telephone Haydon Kerk at 203-756-7441.

Haydon Kerk Motion Solutions is the joining of two world-class brands in the field of linear motion: Haydon Switch and Instrument, Inc. and Kerk Motion Products, Inc. Together as Haydon Kerk Motion Solutions, they offer a wide range of high-performance and precision linear motion products.

Recognized as a leading manufacturer of stepper motor based linear actuators, rotary motors, lead screw assemblies, and linear rail and guide systems used in niche market applications, Haydon Kerk Motion Solutions has developed industry-renowned brands built upon its technical innovation, versatility, customization, product durability, and dedicated customer service.

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