618/670 Bearing Overview
Image for reference only.
Core Parameters
- Main Dimensions 670mm × 820mm × 69mm
- Dynamic Load (Cr) 420 kN
- Static Load (Cor) 780 kN
- Weight 82.8 kg
Bearing Type
Technical Specifications
| ID | 670mm | Inside diameter |
|---|---|---|
| OD | 820mm | Outside diameter |
| B | 69mm | Width |
| Cr | 420kN | Dynamic load rating |
| Cor | 780kN | Static load rating |
| Mass | 82.8Kg | Weight |
Material
GCr15 Bearing Steel (Customizable: GCr15 / GCr15SiMn / GCr18Mo / G20Cr2Ni4A)
Cage
Standard pressed steel cage (Customizable: Steel / Brass / Machined Brass)
Precision Rating
P0 (P0 / P6 / P5 / P4 available)
Clearance
C3 increased radial clearance (C0 / C2 / C3 / C4 / C5 available)
Brand
WJY / OEM Available
Origin
Wafangdian, China (30+ years bearing manufacturing hub)
Quality Standard
OEM & Customization
Custom materials, cages, precision & clearance available.
Product Description
The 618/670 618 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.
Ideal for use in: large precision machinery, wind turbine components, paper mill equipment, steel mill machinery, mining machinery, steel mill equipment, large compressors
Delivery & Service
Delivery Time
In-stock: 3–5 days; OEM/ODM: 20–35 days.
Shipping Methods
Ocean Freight / Land Transport
Warranty
12-month warranty, extendable to 18 months.
Pricing Information
Prices vary by precision & material. Please submit an inquiry for best quote.