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Linear Motion Tips

Covering Linear Motion Systems, Components and Linear Motion Resources

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Slides + guides (all)

How to calculate duty cycle and what it means for machine life

★ By Danielle Collins Leave a Comment

linear rails

Determining the life of a linear system that uses balls or rollers is relatively straightforward, thanks to the L10 bearing life equation, which gives life in meters of travel (for linear bearings) or revolutions (for screws). And for plain bearings and lead screws, manufacturers typically use the bearing’s PV value and operating conditions to provide an […]

Filed Under: Applications, Ball + lead + roller screws, FAQs + basics, Featured, Slides + guides (all)

Pandemic impacts linear motion component manufacturing, applications

★ By Miles Budimir Leave a Comment

automation

Linear motion components include everything from various types of linear actuators to linear guides, slides and ways, and a host of components in between. One thing they all have in common is that their development and production are influenced by both technological trends as well as broader market forces. One of those forces has been […]

Filed Under: Featured, Integrated Linear Systems, Slides + guides (all) Tagged With: festo, igus

Miniature linear guides for mounting in tight spaces

★ By Miles Budimir Leave a Comment

linear guides

IKO has expanded its LWL family of miniature guides with the addition of its newest LWLF2 linear motion rolling guide, which addresses the demand for device miniaturization with a compact, lightweight design that makes mounting easy in tight spaces. The new LWLF2 features the same ultra-small 2.5-mm height dimension as its predecessor, the LWL1. It’s […]

Filed Under: Slides + guides (all) Tagged With: IKO

Linear bearing basics: Surface roughness, texture, and finish

★ By Danielle Collins Leave a Comment

surface texture and roughness

One of the factors to consider when selecting shafts for linear bearings is surface roughness, which describes the microscopic asperities, or peaks, and valleys present on a material’s surface. But surface roughness is an important specification for all types of linear guides and screws — whether plain or recirculating, round shaft or profiled rail, ball […]

Filed Under: Applications, Ball + lead + roller screws, FAQs + basics, Featured, Slides + guides (all)

New LMHB linear ball bushing can press fit into assemblies

★ By Lisa Eitel Leave a Comment

THK America Inc. now offers a type LMHB linear bushing for linear-motion applications. This linear bushing is press-fit into moving elements of linear motion axes to allow smooth traversal of round shaft. The THK LMHB linear bushing achieves smooth and silent motion thanks to the spring effect provided by curved metal plates within the assembly […]

Filed Under: Applications, Industry news, Slides + guides (all) Tagged With: THK

Linear rails from Rollon simplify design of high-performance automated systems

★ By Miles Budimir Leave a Comment

linear rails

Rollon has upgraded its Telerace family of linear rails to help designers simplify projects and enhance the efficiency of automated systems. Two Telerace families of cold-drawn steel rails now feature induction hardened and ground raceways along with double-row ball bearings for greater load handling capability, longer life and reduced maintenance requirements. The newly enhanced rail […]

Filed Under: Featured, Slides + guides (all) Tagged With: linear rails, rollon

Nook Industries sells family business to Altra Industrial Motion Corp.

★ By Lisa Eitel Leave a Comment

Nook Industries, a leader in US engineered linear motion products and solutions, announced today that it has sold the family-owned business to Braintree, Massachusetts-based Altra Industrial Motion Corp. (Nasdaq: AIMC), a leading global manufacturer and supplier of motion control, power transmission and automation products. The Nook business, which will be integrated into Altra’s Thomson operating […]

Filed Under: Linear bearings, Slides + guides (all) Tagged With: nook

What are the benefits of six-row linear bearings

★ By Danielle Collins Leave a Comment

six-row linear bearing cutaway

The most common types of recirculating linear bearings use four rows of balls — two on each side of the bearing block — to provide good load capacity and rigidity. But the four-row design means that when radial (downward or liftoff) or lateral (side) loads are applied, only two rows of balls are engaged to support […]

Filed Under: Ball + roller guides, FAQs + basics, Featured, Slides + guides (all)

Contact angle: What is it and how does it affect linear bearing performance?

★ By Danielle Collins Leave a Comment

contact angle and load distribution

In profiled rail linear guides that use balls or rollers, the geometry and arrangement of the bearing raceways play a significant role in the bearing’s load capacity, friction, rigidity, and ability to withstand errors in mounting. But there’s another aspect of a bearing’s design that also plays a role in its load capacity and rigidity […]

Filed Under: Ball + roller guides, Crossed-roller slides, FAQs + basics, Featured, Linear bearings

How to choose a lubricant for recirculating linear bearings

★ By Danielle Collins Leave a Comment

All metal-on-metal recirculating bearings require lubrication in order to function properly and provide a reasonable bearing life. Lubrication reduces friction and heat by separating the rolling elements from the bearing raceway, inhibits corrosion, protects bearing surfaces from contamination, and helps seals run smoothly and operate effectively. Although the importance of lubrication is clear, choosing the best […]

Filed Under: Applications, Ball + roller guides, Crossed-roller slides, FAQs + basics, Featured, Linear bearings

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