SKF LUNF 40-2LS linear motion

SKF LUNF 40-2LS belongs to linear motion, part of our Linear motion range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for LUNF 40-2LS and any equivalents.

A LUNF LS linear unit from SKF pairs a bearing housing with a linear ball bearing, giving guided motion along cylindrical shafting. It suits automation, machine tools and handling equipment that call for low friction and repeatable positioning. MR Industrial Accessories supplies this line within its linear motion range and can help you settle on the right configuration.

The code tells you what you are ordering. LUNF marks the housed linear unit family, and LS means the bearing carries a seal on each side. The figure in the middle is the shaft size in millimeters, so LUNF 40-2LS takes a 40 mm shaft. The -2LS ending repeats that double-seal detail; versions with one seal or none also exist. Reading the code this way keeps replacement orders accurate.

Typical installations include robotic arms, cutting tables, internal transport systems and assembly machines, plus packaging and labeling lines where cleanliness and precision matter. Because the housing and bearing arrive as one piece, mounting is simpler and setup time drops. MR Industrial Accessories supplies these units both for new builds and for replacement work.

When selecting a unit, weigh the load, the travel speed and the working environment. In areas with dust or chips, the 2LS sealing is the sensible pick; in clean conditions a single seal may be enough. Shaft and housing alignment deserves attention, since misalignment shortens bearing life. Grease applied at the factory usually covers normal running, though heavy cycling makes periodic grease checks worthwhile. Assemble and fasten the unit as the manufacturer instructs.

On interchangeability, SKF linear units can cross over to other makes that use the same standardized dimensions, such as housed linear bearing units. Tolerances and seal type are the details to confirm, because they differ from one maker to another. For a replacement, compare the full part number and the shaft dimensions. If anything is unclear, our technical team can point you to a suitable alternative.

To request a quote on the SKF LUNF LS series, send the complete part number through WhatsApp. That lets us verify the configuration and answer precisely. We can also advise on the other linear motion components we carry.