618/670/C4 Bearing Technical Specifications
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- Bore Diameter(d) 670mm
- Outer Diameter (D) 820mm
- Width(B) 69mm
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- Dynamic Load Rating (Cr) 420kN
- Static Load Rating (Cor) 780kN
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- Weight 82.2kg
The 618/670/C4 618 Series Deep Groove Ball Bearing (Extra Thin-Wall) is engineered for high-speed and space-constrained applications. With dimensions of 670mm bore diameter, 820mm outer diameter, and 69mm width, this extra large-bore deep groove ball bearing delivers low-friction, high-speed performance in demanding industrial environments. It features a dynamic load rating of 420kN and static load rating of 780kN, suitable for both radial and moderate axial load applications. Equipped with a Standard pressed steel cage, it ensures optimal rotational stability and extended service life under targeted operating conditions. This bearing includes C4 internal clearance for enhanced adaptability to specific working conditions.
Ideal for use in: large precision machinery, wind turbine components, paper mill equipment, steel mill machinery, mining machinery, steel mill equipment, large compressors
Bearing Type
Main Dimensions
670mm × 820mm × 69mm
| ID | 670mm | Inside diameter(I.D.) |
|---|---|---|
| OD | 820mm | Outside diameter(O.D.) |
| B | 69mm | Width |
| Cr | 420kN | Radial dynamic load rating |
| Cor | 780kN | Radial static load rating |
| Mass | 82.2Kg | Weight |
Material
GCr15 Bearing Steel (Customizable materials: GCr15 Bearing Steel/GCr15SiMn/GCr18Mo/G20Cr2Ni4A)
Cage
Standard pressed steel cage ( customizable on demand in steel, brass, machined brass, etc.)
Precision Rating
P0 (Customizable on demand in P0/P6/P5/P4 grades; higher precision for demanding applications)
Clearance
C4 increased radial clearance (customizable on demand in C0/C2/C3/C4/C5 specifications)
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.