7228BM/DB Bearing Overview
Image for reference only.
Core Parameters
- Main Dimensions 140mm × 250mm × 84mm
- Dynamic Load (Cr) 309 kN
- Static Load (Cor) 414 kN
- Weight 17.2 kg
Bearing Type
| ID | 140 mm | Inside diameter(I.D.) |
|---|---|---|
| OD | 250 mm | Outside diameter(O.D.) |
| 2B | 84 mm | Width |
| r12 | 3 mm | Outer ring chamfer |
| r34 | 1.1 mm | Inner ring chamfer |
| Grease speed | 3200 r/min | Limiting speed (grease lubrication) |
| Oil speed | 4200 r/min | Limiting speed(oil lubrication) |
| Cr | 309 kN | Radial dynamic load rating |
| Cor | 414 kN | Radial static load rating |
| Mass | 17.2 Kg | Weight |
Cage
Machined brass cage (Customizable: Steel / Brass / Machined Brass)
Precision Rating
(P0 / P6 / P5 / P4 available)
Clearance
Brand
WJY / OEM Available
Origin
Wafangdian, China (30+ years bearing manufacturing hub)
Quality Standard
OEM & Customization
Custom materials, cages, precision & clearance available.
Product Description
Single Row Angular Contact Ball Bearings (Model: 7228BM/DB) with a standard contact angle of 40° are designed to handle combined radial and axial loads effectively. ideal for heavy axial loads and high stiffness requirements. The bearing has a bore diameter of 140mm, outer diameter of 250mm, and width of 84mm. With fillet radii of 3mm (r12) and 1.1mm (r34), it ensures smooth operation and structural integrity. It offers a dynamic load capacity of 309kN and static load capacity of 414kN. Suitable for high-speed applications, it has a limiting speed of 3200 r/min (grease lubrication) and 4200 r/min (oil lubrication), with a weight of 17.2 kg. Ideal for precision machine tools, small to medium gearboxes, this bearing provides reliable performance in demanding industrial environments. Manufactured to strict quality standards, it delivers exceptional precision and durability under varying loads. The manufacturer offers a Standard 12-month warranty extendable up to 18 months through authorized Jinyu distributors. OEM solutions available.
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.