Zklf2575-2rs-Xl Ina

ZKLF2575-2RS-XL INA Axial Angular Contact Ball Bearing

The INA ZKLF2575-2RS-XL is a high-stiffness double direction angular contact thrust ball bearing fitted with 2RS nitrile rubber contact seals. This INA ZKLF series XL-life bearing is purpose-built to accommodate combined axial and radial loads within compact installation envelopes, delivering outstanding positioning accuracy for precision machinery.

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Technical Data Sheet: INA ZKLF2575-2RS-XL Double Direction Angular Contact Thrust Ball Bearing

The INA ZKLF2575-2RS-XL is a high-stiffness double direction angular contact thrust ball bearing fitted with 2RS nitrile rubber contact seals. This INA ZKLF series XL-life bearing is purpose-built to accommodate combined axial and radial loads within compact installation envelopes, delivering outstanding positioning accuracy for precision machinery.
Dimension Specifications: Bore diameter d=25 mm, outer diameter D=75 mm, overall width B=34 mm. Chamfer dimension r=0.6 mm, tolerance class P4. Pre-adjusted internal axial preload ensures exceptional rigidity; the integrated 2RS sealing design blocks solid contaminants and retains internal grease for long service intervals.
Material Configuration: Inner and outer rings: 100Cr6 high carbon chromium bearing steel, vacuum heat-treated to HRC 60–64, featuring excellent wear resistance and rolling contact fatigue strength. Rolling elements: 100Cr6 steel balls. Cage material: glass-fiber reinforced polyamide PA66, with low friction coefficient, superior dimensional stability and impact resistance. 2RS contact seals are NBR nitrile rubber, offering reliable oil resistance and sealing performance under normal industrial temperature ranges.
Core Manufacturing Processes: Raw bearing steel is processed by isothermal forging to refine grain structure and eliminate internal voids. CNC turning produces near-net-shape ring profiles. Vacuum quenching and tempering minimize thermal distortion while maintaining consistent hardness. Precision grinding tightens raceway geometrical tolerances, followed by superfinishing to reduce surface roughness, lowering contact stress and operational friction. Final assembly validates preload and sealing integrity.
Service Life: Nominal rating life L10 calculated according to ISO 281. Under standard operating conditions (100 rpm, clean lubrication, moderate combined axial-radial load), L10 reaches 17,500 operating hours. Bearing lifespan is heavily influenced by load conditions, shaft alignment, lubrication quality, operating temperature and foreign particle contamination.
Typical Applications: This INA ZKLF2575-2RS-XL bearing is widely adopted for machine tool rotary tables, precision rotary indexing fixtures, automation rotary actuators, packaging rotary platforms and laser processing equipment. Its compact dimension and high axial stiffness make it a top choice for precision positioning assemblies under bidirectional axial loads.
Maintenance Guidelines: Conduct routine inspection every 2000 operating hours. Recommended lubricant: lithium complex grease; fill 25–30% of bearing internal free volume. Keep seal mating surfaces free of metal chips and dust. Inspect for abnormal vibration, noise or temperature rise. Shut down equipment immediately if seal leakage or raceway damage is detected.
Installation Instructions: Thoroughly clean shaft and housing surfaces before mounting. Apply thin grease to fitting surfaces. Use press-fit assembly; apply mounting force only to the ring being pressed. Maintain precise shaft-to-housing alignment. Adhere to specified lock nut tightening torque. Perform no-load running test after installation to check rotation smoothness and temperature stability. Never strike the bearing directly with a hammer to avoid permanent raceway damage.

BRAND	FONKIN/SKF/FAG/INA/NSK/NTN/TIMKEN/SNR/IKO/KOYO/ASAHI/FYH/THK/HIWIN/PMI
BEARINGS NO.	ZKLF2575-2RS-XL INA
TYPE	Angular Contact Ball Bearings
Inner(d)mm	25
Outer(D)mm	75
Width(B)mm	28
WEIGHT/KG	0.72
EAN CODE	4012802 416619

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