Higher Load Ratings

Dynamic and static load ratings exceed the equivalent LM...UU for the same bore diameter, enabling higher loads without increasing bore size.

Dual Lip Seals (UU)

NBR rubber lip seals retain NLGI-2 grease and exclude dust and contamination. Rated −20°C to +80°C continuous service.

Open Slot Option

OP and UUOP variants feature a lateral slot for shaft insertion from the side — essential for split-housing installations.

GCr15 Chrome Steel

Through-hardened to HRC 58–64. Ball tracks ground to Ra 0.2 µm for optimal lubrication film formation.

PA66-GF30 Retainer

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

Metric Bore Sizes

Available in 10, 12, 16, 20, 25, 30, 40, and 50 mm bore sizes to cover a wide range of shaft diameters.

CNC Machine Tool Axes

Provides higher load capacity than LM series in spindle carriage and cross-slide applications where increased rigidity is required without enlarging the housing envelope significantly.

Industrial Automation

Suitable for pick-and-place heads, conveyor guidance, and actuator slides where moderate to heavy radial loads demand a higher-rated bearing in a compact housing.

Packaging Machinery

The sealed UU variant withstands the intermittent wash-down and lubricant-splash conditions found in food and pharmaceutical packaging lines.

Medical Equipment

Used in syringe pump drives and diagnostic instrument stages where consistent smooth travel and low particulate generation are required.

🔎 Shaft Specification

Ground to h6/h7 tolerance, HRC 60+ hardness, Ra 0.4 µm surface finish. Refer to the bore tolerance column in the specification table for the exact tolerance band per size.

🔧 Housing Bore

H7 tolerance. Press bearing using a tool bearing only on the outer race end face — never apply force through the bore.

📈 Lubrication

Factory NLGI-2 grease fill. Re-lubricate every 500 km or 6 months. For OP (no-seal) variants, re-lubricate more frequently in contaminated environments.

⚙ Alignment

Traverse shaft manually after installation. Uniform resistance confirms correct alignment. Stiff spots indicate misalignment exceeding 0.03 mm/100 mm — correct housing position before powering the drive.

①

Identify Application Type

Confirm whether sealed (UU), open-slot (OP), or sealed-open (UUOP) configuration is required based on housing design and contamination level.

②

Select Bore & Model

Match the bore size to the shaft nominal diameter. Verify the LMES outer diameter fits the available housing bore.

③

Verify Load & Life

Calculate L10 = (C/P)³ × 50 km where P is the equivalent radial load. If life is insufficient, increase bore size to the next LMES size.

④

Contact Us

MOQ 100 units. Contact our team with engineering drawings specifying bore, housing, load case, stroke, and target life.

📞 Ready to Order?

MOQ is 100 units per model. Provide engineering drawings with bore, housing bore tolerance, load case, stroke, speed, and target service life. All catalogue data is for reference only.