Linear plain bearing
Description
In modern industrial automation and mechanical engineering, linear plain bearings represent the most reliable alternative to traditional recirculating ball linear bearings. Our range includes standalone linear sleeves (bushings), fully assembled housed linear units (round and rectangular designs), and precision-matched linear shafts. Whether you require a solution for extremely dusty environments, wet/chemical conditions, or low-noise, vibration-free operation, our products deliver maximum service life and maintenance-free operation.
Product Range Overview
Linear Plain Sleeves & Bushings
- Dry-Running, Maintenance-Free Design: Made from high-grade engineering polymers (e.g., PTFE/iglidur compounds) or self-lubricating bronze inserts that require no oil or grease.
- Dust and Dirt Resistance: Since no lubricants are needed, dust, chips, and fine particles do not stick to the surface, preventing premature wear and seizure.
- Standard Dimensions: Fully interchangeable with standard ball linear bushings (e.g., LM, LME series).
Housed Linear Units (Bearing Blocks)
- Rectangular / Square Housed Units: Easy surface mounting, high load capacity, and rigid clamping. Ideal for direct installation on flat surfaces.
- Round Housed Units: Compact design for cylindrical bores or space-restricted installations.
- Open and Closed Types: Closed units for unsupported shafts, open units for fully supported linear shafts.
Linear Plain Bearing / Unit
- 100% maintenance-free (dry-running)
- Excellent Dirt Resistance (dirt does not stick)
- Extremely quiet operation
- Excellent shock & vibration absorption
- Runs on soft steel, aluminum & carbon shafts
Frequently Asked Questions (FAQ)
- Do linear plain bearings require lubrication? No. Our linear plain sleeves and units are made from self-lubricating composite materials. Solid lubricants are embedded directly into the bearing material, ensuring continuous low friction without adding oil or grease.
- Can standard recirculating ball bushings be replaced with plain bearings? Yes, most linear plain bearings and housed units follow standard ISO dimensions (e.g., replacing LM12UU, LM16UU, SMA, SME series), making them drop-in replacements for existing setups.
