QJ328 Bearing Technical Specifications
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- Bore Diameter(d) 140mm
- Outer Diameter (D) 300mm
- Width(B) 62mm
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- Dynamic Load Rating (Cr) 340kN
- Static Load Rating (Cor) 480kN
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- Weight 22.7kg
Four Point Angular Contact Ball Bearings (Model: QJ328 / 176328) are designed to handle combined radial and axial loads in both directions, providing high rigidity and precision. The bearing has a bore diameter of 140mm, outer diameter of 300mm, and a width of 62mm. The minimum fillet radius is 4mm. It offers a dynamic load capacity of 340kN and a static load capacity of 480kN. With a limiting speed of 1250 r/min for grease lubrication and 1650 r/min for oil lubrication, and a weight of 22.7 kg, it suits various industrial setups. The mounting dimensions include a minimum inner ring diameter of 180mm, maximum outer ring diameter of 260mm, and maximum fillet radius of 3mm. Ideal for precision machine tools, small to medium-sized industrial gearboxes, this bearing ensures reliable operation in different machinery. Manufactured to high-quality standards, it delivers exceptional precision and durability under varying loads, supporting both radial and bidirectional axial load requirements. The manufacturer offers a Standard 12-month warranty extendable up to 18 months through authorized Jinyu distributors. OEM solutions available.
Bearing Type
Main Dimensions
140mm × 300mm × 62mm
| ID | 140 mm | Inside diameter(I.D.) |
|---|---|---|
| OD | 300 mm | Outside diameter(O.D.) |
| B | 62 mm | Width |
| rsmin | 4 mm | Minimum Fillet Radius |
| damin | 180 mm | Minimum mounting shaft diameter |
| Damax | 260 mm | Maximum mounting bore diameter |
| ramax | 3 mm | Maximum mounting chamfer radius |
| Grease speed | 1250 r/min | Limiting speed (grease lubrication) |
| Oil speed | 1650 r/min | Limiting speed(oil lubrication) |
| Cr | 340 kN | Radial dynamic load rating |
| Cor | 480 kN | Radial static load rating |
| Mass | 22.7 Kg | Weight |
Brand
WJY / OEM Available
Origin
Quality Standard
Delivery Time
- For in-stock own-brand bearings, Dalian JinYu HuaYang guarantees shipment arrangement within 3–5 days after payment confirmation.
- For OEM/ODM orders, the production and delivery lead time for a full container typically ranges from 20–35 days (depending on order complexity).
Shipping Methods
Ocean Freight/Land Transport
Warranty
We provide 12-month warranty, extendable to 18 months via authorized JinYu distributors.
Pricing Information
Bearings prices vary by precision grade, raw material quality, and market dynamics. For customized quotes, please submit an inquiry via our contact form.