7028AC/DF Bearing Technical Specifications
- Dimensions
-
- Bore Diameter(d) 140 mm
- Outer Diameter (D) 210 mm
- Width(B) 66 mm
- Basic Load Rating
-
- Dynamic Load Rating (Cr) 203 kN
- Static Load Rating (Cor) 275 kN
-
- Weight 6.92 kg
- Bearing Model
- 7028AC/DF
- Bearing Type
- Single Row Angular Contact Ball Bearings
- Main Dimensions
- 140mm × 210mm × 66mm
| ID | 140 mm | Inside diameter(I.D.) |
|---|---|---|
| OD | 210 mm | Outside diameter(O.D.) |
| 2B | 66 mm | Width |
| r12 | 2 mm | Outer ring chamfer |
| r34 | - mm | Inner ring chamfer |
| Grease speed | 3600 r/min | Limiting speed (grease lubrication) |
| Oil speed | 4800 r/min | Limiting speed(oil lubrication) |
| Cr | 203 kN | Radial dynamic load rating |
| Cor | 275 kN | Radial static load rating |
| Mass | 6.92 Kg | Weight |
- Brand
- WJY / OEM Available
- Origin
- Wafangdian, China (Global bearing manufacturing hub with 30+ years expertise)
- Precision Rating
- P0 (Standard) / P6 / P5 / P4 (Higher precision for demanding applications)
- Cage
- Steel cage
- Material
-
- GCr15 Bearing Steel (Industry-standard for high load & fatigue resistance)
- GCr15SiMn
- GCr18Mo
- G20Cr2Ni4A
- Clearance
- C3 (standard), customizable to C0/C2/C4/C5
- Quality Standard
- ISO 9001:2015 Certified
Single Row Angular Contact Ball Bearings (Model: 7028AC/DF) with a standard contact angle of 15° are designed to handle combined radial and axial loads effectively. optimized for high-speed applications with moderate axial loads. The bearing has a bore diameter of 140mm, outer diameter of 210mm, and width of 66mm. With fillet radii of 2mm (r12) and -mm (r34), it ensures smooth operation and structural integrity. It offers a dynamic load capacity of 203kN and static load capacity of 275kN. Suitable for high-speed applications, it has a limiting speed of 3600 r/min (grease lubrication) and 4800 r/min (oil lubrication), with a weight of 6.92 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 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
Bearing prices vary by precision grade, raw material quality, and market dynamics. For customized quotes, please submit an inquiry via our contact form.