Description
Oilless Linear Bearings with External Retaining Groove

A standard and extended length oilless linear bearing with a visible external retaining groove.
Combine smooth, self-lubricating linear motion with secure axial fixing. This advanced series of LM linear bearings features a precision-machined external groove for a retaining ring (circlip), providing a definitive solution for preventing axial movement. Built with a robust steel housing and a maintenance-free oilless bronze liner, these bushings are a superior drop-in replacement for traditional ball bearings in demanding applications.
Product Versions
Standard Length Type
Offers a compact, reliable solution for a wide range of applications, combining self-lubrication with positive axial location via a retaining ring.
Extended (Double) Length Type
Provides a larger contact surface for significantly increased load capacity and enhanced stability against moment loads, making it ideal for heavy-duty or high-precision systems.
Key Advantages
- Positive Axial Location: The external groove allows for secure fixing with a standard retaining ring, preventing any axial slippage.
- Maintenance-Free Performance: The inner oilless bronze liner provides continuous self-lubrication.
- Robust Bimetal Construction: A hardened steel outer housing ensures rigidity and durability under high loads and in harsh environments.
- High Load Capacity: Far exceeds the load capacity of equivalent-sized linear ball bearings.
- Drop-in Replacement: Dimensionally designed to fit standard linear bearing housings.
Technical Specifications – LM Series with Retaining Groove
dr (Inner Ø) | D (Outer Ø) | Length L | External Retaining Groove | |||
---|---|---|---|---|---|---|
Standard | Extended | B | D1 | W | ||
3 | 7 | 10 | – | – | – | – |
4 | 8 | 12 | – | – | – | – |
5 | 10 | 15 | – | 10.2 | 9.6 | – |
6 | 12 | 19 | 35 | 13.5 | 11.5 | 1.1 |
8 | 15 | 24 | 45 | 17.5 | 14.3 | 1.1 |
10 | 19 | 29 | 55 | 22 | 18 | 1.3 |
12 | 21 | 30 | 67 | 23 | 20 | 1.3 |
13 | 23 | 32 | 61 | 23 | 22 | 1.3 |
16 | 28 | 37 | 70 | 26.5 | 27 | 1.6 |
20 | 32 | 42 | 80 | 30.5 | 30.5 | 1.6 |
25 | 40 | 59 | 112 | 45 | 38 | 1.85 |
30 | 45 | 64 | 123 | 48 | 43 | 1.85 |
35 | 52 | 70 | 135 | 54 | 50 | 2.15 |
40 | 60 | 80 | 151 | 62 | 57 | 2.15 |
50 | 80 | 100 | – | 77 | 77 | 3.15 |
60 | 90 | 110 | – | 85 | 86 | 3.15 |
Secure Your Linear Motion System
Contact us with your size requirements for a fast quote on our advanced, maintenance-free linear bearings.