The IKO HKS303745 is a high-performance drawn cup needle roller bearing designed for compact installation space, high radial load and continuous stable operation, widely recognized as a core component in precision power transmission systems. This heavy-duty IKO needle bearing features compact structure, excellent rigidity and anti-fatigue property, meeting strict industrial operation demands for durability and low friction.
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The IKO HKS303745 is a high-performance drawn cup needle roller bearing designed for compact installation space, high radial load and continuous stable operation, widely recognized as a core component in precision power transmission systems. This heavy-duty IKO needle bearing features compact structure, excellent rigidity and anti-fatigue property, meeting strict industrial operation demands for durability and low friction.
Precise dimensional parameters comply with ISO international standards: bore diameter 30 mm, outer diameter 37 mm, overall width 45 mm, minimum chamfer 0.8 mm, standard PN tolerance grade, with calibrated dynamic load and static load to ensure stable bearing capacity under long-term operation.
In terms of material configuration, the outer drawn cup adopts high-quality 100Cr6 bearing steel, with surface hardness up to HRC 60–64, outstanding wear resistance and dimensional stability. Needle rollers are made of high-carbon chromium alloy steel with high contact fatigue strength; the precision stamped steel cage realizes stable roller guidance, light weight and strong impact resistance, adapting to complex working conditions.
Core manufacturing processes include precision blanking, near-net shaping forging, CNC fine turning, vacuum quenching and tempering heat treatment, high-precision surface grinding and roller superfinishing. Strict process control reduces internal stress, lowers surface roughness, minimizes operation friction and extends overall service life.
Calculated in accordance with ISO 281 bearing life standard, the standard working condition L10 service life of IKO HKS303745 exceeds 18,000 hours. Service life is mainly affected by load magnitude, running speed, lubrication state, installation accuracy and environmental pollution.
This IKO HKS303745 needle roller bearing is widely applied in automobile transmission, engineering machinery, hydraulic equipment, general machinery and automation equipment. Its thin-wall ultra-compact design and high load density make it the preferred choice for limited-space mechanical structures.
For daily maintenance, adopt NLGI 2 universal lithium grease, fill 30%–40% of the inner cavity, and perform regular lubrication maintenance every 500 working hours. Keep the installation shaft and housing clean, regularly check running noise, temperature and vibration, and replace timely once abrasion or abnormal jamming occurs.
During installation, clean the matching surface in advance, adopt pressing installation to avoid violent knocking, control coaxiality error within 0.05 mm, standardize fastening torque, and conduct no-load trial operation after installation to confirm stable operation, effectively preventing early bearing damage caused by improper assembly.
| BRAND | FONKIN/SKF/FAG/INA/NSK/NTN/TIMKEN/SNR/IKO/KOYO/ASAHI/FYH/THK/HIWIN/PMI/TORRNGTON |
| BEARINGS NO. | HKS303745 IKO |
| TYPE | Needle Roller and Cage Assembly |
| Inner(d)mm | 30 |
| Outer(D)mm | 37 |
| Width(B)mm | 45 |
| WEIGHT/KG | |
| EAN CODE |
+86-510-6831-3099
No.105, Huixin Road,Yuqi Industrial Park, Huishan District, hunqi Road, Yuqi Town, Wuxi, Jiangsu Province, P.R.CHINA
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