Flanged Axial Location

The precision-ground flange face registers directly against the housing shoulder, providing positive axial location without snap rings or adhesive retention.

GCr15 Chrome Steel

Through-hardened to HRC 58–64. Ball tracks ground to Ra 0.2 µm for full-film lubrication at the ball-race contact under rated load conditions.

Dynamic Load 323–7550 N

Covering 13 bore sizes for applications from lightweight instrument stages to heavy industrial press guides.

NBR Dual Lip Seals

Retain factory-applied NLGI-2 grease while excluding dust and contamination. Rated −20°C to +80°C continuous service.

PA66-GF30 Retainer

Glass-filled nylon cage maintains precise ball spacing across the full 360° circuit, preventing ball-to-ball contact and associated noise.

ISO/DIN Interchangeable

All dimensions conform to ISO Flanged Extended with Positioning Groove standards for direct replacement compatibility with equivalent housings.

3D Printing & Additive Manufacturing

Round-flange variants such as the LMF series are the preferred bearing in 3D printer carriage assemblies because the flange face registers directly against a machined boss, ensuring consistent axial positioning of the print head without additional fixturing.

Medical Device Manufacturing

Square-flange (LMH/LMHP) bearings are preferred in syringe pump drives and diagnostic cartridge dispensers because the flat flange face seals cleanly against the housing wall, reducing contamination pathways in sterile manufacturing environments.

🔎 Flange Face Seating

Ensure the housing counterbore depth matches the bearing flange thickness. An under-depth counterbore leaves the flange proud of the housing face, creating a gap at the bolt interface that allows the bearing to rock under load and introduces harmonic error motion.

🔧 Bolt Torque Sequence

Tighten flange mounting bolts in a cross pattern to 30–50% of final torque, then complete to specification. Sequential tightening distorts the flange and shifts the bore axis by up to 0.05 mm, degrading shaft alignment.

📈 Shaft Specification

Use a hardened shaft (HRC 60+) ground to h6 or h7 tolerance with surface roughness Ra 0.4 µm or better. An undersized or soft shaft accelerates ball-track wear and reduces rated service life significantly.

⚙ Housing Bore Tolerance

Machine the housing bore to H7 tolerance. For square-flange (LMH/LMHP) variants, also verify the flange seating face is square to the bore within 0.02 mm to prevent cocking the bearing on assembly.

①

Confirm Bore & Standard

Match bore diameter to shaft. Confirm ISO Flanged Extended with Positioning Groove housing dimensions — mixing ISO and DIN outer diameters requires housing re-machining.

②

Select Flange Style

Round flange for maximum moment resistance; diamond flange for compact bolt clearance; square flange for torsional resistance.

③

Calculate Load & Life

Compute radial load P. Target L10 = (C/P)³ × 50 km. If life is marginal, specify the LUU extended variant to raise C without changing bore.

④

Contact Us

MOQ 100 units per model. Contact our team with engineering drawings confirming shaft diameter, housing bore depth, bolt PCD, load case, and target life.

📞 Ready to Order?

MOQ is 100 units per model. Provide engineering drawings with shaft diameter, housing bore depth, flange PCD, load case, stroke, speed, and target life. All catalogue data is for reference only — verify critical dimensions against current revision drawings before committing to tooling.