HK4520 HK/45x55x38 Needle Roller Bearing – High-Load, Precision Factory Direct
Model / SKU: e39a8a65c137
<h2>Basic Info.</h2>
<table>
<tr><td>Inner Diameter</td><td>45 mm</td></tr>
<tr><td>Outer Diameter</td><td>52 mm</td></tr>
<tr><td>Thickness</td><td>20 mm</td></tr>
<tr><td>Model NO.</td><td>HK4520</td></tr>
<tr><td>Type</td><td>Closed Needle Roller Bearing</td></tr>
<tr><td>Material</td><td>Bearing Steel</td></tr>
</table>
<h2>Introduction</h2>
This HK4520 needle roller bearing is a radial, ringless design (no outer/inner ring), made of high-grade bearing steel. It features closed type construction, grease or oil lubrication, standard P0–P2 precision ratings, and C0–C4 clearance options. Compact size (45×52×20 mm) suits space-constrained applications. OEM/ODM supported. Made in China.
- d×D×B
- Precision
- Clearance
- Seal
- Contact Angle
- Brand
- COC & original factory certificates with every shipment
- HPLC inspection reports available
- Original packaging + tamper-evident seal
- 7–15 day worldwide delivery
- Flexible MOQ: trial order to full container
- Multilingual reply within 12 hours
