Zarn3062-Tv-A Ina

Needle Roller and Cage Assembly ZARN3062-TV-A INA

The INA ZARN3062-TV-A is a compact combined needle roller and axial cylindrical roller bearing, engineered to accommodate simultaneous radial and heavy axial loads within a narrow mounting space. This INA ZARN series bearing integrates radial needle roller and axial roller raceways, delivering high load capacity and exceptional rigidity for precision machine designs.

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Technical Data Sheet: INA ZARN3062-TV-A Combined Needle Roller / Axial Cylindrical Roller Bearing

The INA ZARN3062-TV-A is a compact combined needle roller and axial cylindrical roller bearing, engineered to accommodate simultaneous radial and heavy axial loads within a narrow mounting space. This INA ZARN series bearing integrates radial needle roller and axial roller raceways, delivering high load capacity and exceptional rigidity for precision machine designs.
Dimension Specifications: Bore diameter d=30 mm, outer diameter D=62 mm, overall width B=45 mm. Chamfer dimension r=0.6 mm, tolerance class P4. The unit combines radial needle roller section and axial cylindrical roller assembly, eliminating the need for separate radial and thrust bearing arrangements.
Material Configuration: Inner and outer rings: 100Cr6 high-carbon chromium bearing steel, vacuum heat-treated to HRC 60–64, offering outstanding wear resistance and rolling contact fatigue strength. Radial needle rollers and axial cylindrical rollers: 100Cr6 bearing steel. Cage: TV-type polyamide PA66 reinforced cage, low friction, high dimensional stability and good resistance to cyclic mechanical stress.
Core Manufacturing Processes: Raw steel blanks undergo isothermal forging to refine grain structure and remove internal metallurgical defects. CNC turning forms near-net profiles for rings and raceway components. Vacuum quenching and tempering ensure uniform hardness and minimal distortion. Precision grinding controls raceway geometry, followed by superfinishing to reduce surface roughness, lowering contact stress and friction loss. Final assembly verifies roller clearance and unit runout.
Service Life: Nominal rating life L10 calculated per ISO 281. Under standard operating conditions (100 rpm, clean lubrication, combined radial and axial load), L10 reaches 16,800 operating hours. Service life is impacted by load magnitude, shaft alignment, lubrication condition, operating temperature and abrasive contamination.
Typical Applications: This INA ZARN3062-TV-A bearing is widely used in machine tool spindles, rotary indexing tables, hydraulic rotary joints, automation rotary actuators and precision handling equipment. Its integrated radial-thrust structure saves installation space while supporting heavy bidirectional axial loads.
Maintenance Guidelines: Perform routine inspection every 2000 operating hours. Recommended lubricant: lithium complex grease; fill 25–30% of internal free volume. Keep mating surfaces free of chips and dust. Monitor vibration, noise and temperature rise. Stop operation immediately if abnormal wear or leakage occurs.
Installation Instructions: Clean shaft and housing bore before mounting. Apply thin lubricant to fitting surfaces. Apply mounting force only to the ring being pressed, avoid direct hammer impact. Maintain precise alignment of shaft and housing. Follow lock nut torque specifications. Complete no-load running test after assembly to verify rotation smoothness and temperature stability.

BRAND	FONKIN/SKF/FAG/INA/NSK/NTN/TIMKEN/SNR/IKO/KOYO/ASAHI/FYH/THK/HIWIN/PMI/TORRNGTON
BEARINGS NO.	ZARN3062-TV-A INA
TYPE	Needle Roller and Cage Assembly
Inner(d)mm	30
Outer(D)mm	62
Width(B)mm	50
WEIGHT/KG	0.6
EAN CODE	4012802 439915

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