021.60.4500 Bearing Technical Specifications
- Dimensions
-
- Bore Diameter(d) 4222 mm
- Outer Diameter (D) 4778 mm
- Width(B) 226 mm
- Basic Load Rating
-
- Dynamic Load Rating (Cr) kN
- Static Load Rating (Cor) 26700 kN
-
- Weight 4700 kg
- Bearing Model
- 021.60.4500
- Bearing Type
- Double-Row Step Bore Ball Slewing Bearings
- Gear Type
- External gear type
- Main Dimensions
- 4222mm × 4778mm × 226mm
Bolt Hole Diameter
| D1 | 4688 mm |
|---|---|
| D2 | 4312 mm |
| dn1 dn2 | 45 |
| dm1 dm2 | M42 |
| L | 84 mm |
| n | 60 mm |
Structure dimensions
| n1 | 10 mm |
|---|---|
| D1 | mm |
| d1 | mm |
| H1 | 214 mm |
| h | 56 mm |
Gear
| b | 150 mm | Tooth width |
|---|---|---|
| m | 150 | Module |
| da | 4879.6 mm | Tooth tip diameter of external gear ring |
| z | 219 | Number of teeth of external gear |
- 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)
- 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
Double-Row Step Bore Ball Slewing Bearings (Model: 021.60.4500) are engineered for heavy-duty slewing applications. With a bore diameter of 4222mm, outer diameter of 4778mm, and width of 226mm, it features This double-row step bore design provides exceptional load distribution across two rows of balls, enabling high axial and radial load capacities while maintaining compact dimensions. The step bore configuration simplifies installation and alignment in complex machinery.. Static load capacity: 26700kN | Weight: 4700 kg | Gear type: External gear type. Suitable for large-scale marine equipment, steel mill turntables, and bridge bearings, it ensures reliable operation under heavy loads and harsh environmental conditions. 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.