Severe internal friction, hydraulic pump humming noise and unsmooth component linkage are frequent concerns for parts suppliers and mechanical maintenance teams. Our NK304630 needle roller bearing is purpose-built for excavator hydraulic pump internal fitting structure. With dense roller layout and high-rigidity outer ring design, it resolves common procurement drawbacks like low pressure tolerance, rapid surface wear and short service cycle, ideal for round-the-clock heavy-load operation on construction and quarry sites.
Item NO.:
NK304630Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYS
| Part Number | NK304630 |
|---|---|
| Part Name | Needle Roller Bearing |
| Compatible Brand | Other |
| Applicable Models | Excavator |
| Application | Excavator |
| Material | High carbon chromium bearing steel |
| Product Color | Bright metallic steel gray |
| Working Temperature | -25℃ to 85℃ |
| Key Function | Offer accurate radial support for hydraulic pump components, reduce friction loss and maintain rotational stability |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

Compact structural design carries heavy radial pressure steadily, perfectly fitting high-load hydraulic pump working demands.

Precision polished raceway reduces rolling resistance, lowering running noise and slowing down mechanical abrasion.

Reinforced outer ring structure resists extrusion and deformation, keeping stable shape under sustained hydraulic impact.


FAQ
A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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