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 431–7550 N

Covering 9 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 Euro Standard Flanged with Locking Screw (DIN) standards for direct replacement compatibility with equivalent housings.

Semiconductor & Electronics Assembly

Diamond-flange (LMK) variants are specified in SMT pick-and-place machines and PCB drilling heads where the bolt pattern must clear adjacent PCB components; the asymmetric mounting points reduce the flange envelope versus round-flange designs.

Textile & Weaving Machinery

Rapier and gripper mechanisms use flanged linear bearings to constrain the shuttle stroke axially at each end of travel, providing a positive mechanical stop that maintains pick timing without additional limit switches.

🔎 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.

📈 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.

⚙ Locking Screw Torque (FC/KC variants)

For LMFC/LMKC/LMEFC/LMEKC bearings, tighten the external locking screw to finger-tight plus one-quarter turn after positioning the bearing axially. Over-tightening distorts the outer race and increases running friction; under-tightening allows axial creep under dynamic loads.

①

Confirm Bore & Standard

Match bore diameter to shaft. Confirm Euro Standard Flanged with Locking Screw (DIN) 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.