SL18 4944 Bearing Technical Specifications
- Dimensions
-
- Bore Diameter(d) 220 mm
- Outer Diameter (D) 300 mm
- Width(B) 80 mm
- Basic Load Rating
-
- Dynamic Load Rating (Cr) 720 000 kN
- Static Load Rating (Cor) 1 590 000 kN
-
- Weight 17.2 kg
- Bearing Model
- SL18 4944 (NNCF4944V)
- Main Dimensions
- 220mm × 300mm × 80mm
| Bearing Model | ||
|---|---|---|
| Cross Reference | NNCF4944V | |
| Dimensions | d | 220 |
| D | 300 | |
| B | 80 | |
| rs | 2.1 | |
| s | 4 | |
| C | 40 | |
| Install Dimensions | d1 | 248 |
| D1 | 268.5 | |
| E | 276 | |
| Basic Load Rating | Cr | 720 000 |
| Cor | 1 590 000 | |
| Limiting speed n1 oil ≈ | Min-1 | 1 000 |
| Weight | 17.2 | |
- 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
- The default cage is stamped steel; Steel, Brass, and Machined Brass cages are optional, with other types not enumerated here.
- 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
SL18 Series Double Row Full Complement Cylindrical Roller Bearing (SL18 4944) - Structure: Double row full complement cylindrical roller bearing with center rib guiding cage - Size Code: 4944 - Key Dimensions: Bore 220mm | Outer Diameter 300mm | Width 80mm - Load Capacity: Dynamic Load 720 000kN | Static Load 1 590 000kN - Application: Balances radial and axial loads, suitable for machine tool spindles and precision transmission systems, especially suitable for medium-sized industrial machinery (e.g., gearboxes, conveyors) 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.