Linear guides are motion systems that use one or more linear rails and guided carriages to support and accurately position loads along a single axis, providing one degree of freedom. The carriage moves along the rail using either rolling elements, such as ball bearings or rollers, or self-lubricating sliding surfaces. The linear rail provides the straight guide track, load support, and alignment required for controlled, low-friction linear movement.
Linear guides from PBC Linear are made in the USA around three core technologies—Gliding Surface Technology, V-Rail Technology, and Cam Roller Technology (CRT)—each optimized for specific application demands while maintaining high rigidity, alignment, and long travel. Gliding Surface Technology uses self-lubricating guides sliding on FrelonGold® liners to eliminate metal-to-metal contact, providing quiet, maintenance-free operation with strong resistance to extreme temperatures, dirt, debris, vibration, and washdown conditions, as used in Mini-Rail® miniature linear rail guides and Uni-Guide™ linear slides. V-Rail Technology uses hardened or stainless steel raceways with self-aligning V-wheels for smooth rolling motion and simplified alignment in systems such as V-Guide™ and IVT (Integral V Technology). Cam Roller Technology (CRT) uses rolling-element carriages on hardened raceways embedded within durable linear rails to support higher loads, longer travel, and higher speeds, as found in Commercial Rail, Redi-Rail®, and heavy-duty Hevi-Rail® systems. Recirculating ball profile rail guides provide high rigidity and load capacity for precision applications. In cantilevered load applications, adherence to the 2:1 binding rule remains an important design consideration, with rolling-element guides generally offering greater tolerance compared to sliding-contact systems.
Features and Specifications of Linear Guide Types
Cam Roller Linear Guides
V-Rail Linear Guide Systems
Gliding Surface Linear Guides
Linear Actuators (Linear Guides with Motors or Hand Cranks)
Frequently Asked Questions
What are linear guides?
How do linear guides work?
What is the difference between sliding and rolling linear guides?
Which linear guide is best for dirty or contaminated environments?
Which linear guide is best for high precision applications?
What are V-groove linear guides?
What are cam roller linear guides?
Do linear guides require lubrication?
What factors should be considered when selecting a linear guide?
What is the difference between linear guides and linear bearings?
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