Engineered for extreme conditions in mining, cement processing, and heavy machinery, the 248 and 249 series spherical roller bearings represent the pinnacle of large-size bearing technology from China’s bearing capital, Wafangdian.
Why Choose 248/249 Series Bearings?
Design Advantages
- High Load Capacity: Designed for extreme radial and moderate axial loads
- Self-Alignment: Compensates for shaft misalignment up to ±2°
- Robust Construction: Solid brass cages for high-speed applications
- Extended Service Life: Premium steel and advanced heat treatment
Typical Applications
- Mining Crushers
- Cement Kilns
- Vibrating Screens
- Gearboxes
- Paper Machinery
- Marine Propulsion
Custom designs available for specific operating conditions
248/249 Series Technical Specifications
Below is a selection of our standard sizes from our extensive production range. We specialize in custom engineering to meet your exact dimensional and performance requirements.
| Bearing Number | Bore Diameter (mm) | Outer Diameter (mm) | Width (mm) | Approx. Weight (kg) |
|---|---|---|---|---|
| 248/800 | 800 | 980 | 180 | 295 |
| 249/670 | 670 | 900 | 230 | 423 |
| 249/710 | 710 | 950 | 243 | 485 |
| 248/1000 | 1000 | 1220 | 218 | 541 |
| 249/800 | 800 | 1060 | 258 | 635 |
| 249/950 | 950 | 1250 | 300 | 1007 |
| 249/1000 | 1000 | 1320 | 315 | 1189 |
| 249/1060 | 1060 | 1400 | 335 | 1425 |
| 249/1120 | 1120 | 1460 | 335 | 1494 |
| 249/1180 | 1180 | 1540 | 335 | 1772 |
| 249/1320 | 1320 | 1720 | 400 | 2473 |
| 248/1500 | 1500 | 1820 | 315 | 1710 |
| 249/1400 | 1400 | 1820 | 425 | 2923 |
| 249/1500 | 1500 | 1950 | 450 | 3552 |
| 248/1800 | 1800 | 2180 | 375 | 2884 |
| Note: Highlighted rows indicate commonly stocked sizes. All specifications are nominal and subject to manufacturing tolerances. | ||||
Technical Features & Manufacturing Excellence
Advanced Heat Treatment
Computer-controlled carburizing and tempering processes ensure optimal core toughness and surface hardness (58-62 HRC).
Precision Grinding
CNC grinding machines achieve raceway accuracy to ABEC 5/P5 standards or better, with surface finishes below 0.2μm Ra.
ISO 9001 Certified Quality
100% dimensional inspection, ultrasonic testing for inclusions, and vibration analysis per ISO 9001:2015 quality management standards.
Wafangdian Manufacturing Advantage
As a manufacturer based in China’s “Bearing Capital“, JYHY Group leverages decades of specialized experience in large bearing production. Our location in Wafangdian provides:
- Vertical Integration: Control over forging, turning, heat treatment, and assembly processes
- Local Supply Chain: Access to premium bearing steel and specialized components
- Technical Heritage: As part of Wafangdian’s bearing ecosystem founded in the 1940s, our deep manufacturing heritage ensures reliability in every large bearing we produce.
- Global Logistics: Direct access to Dalian Port for efficient worldwide shipments
Customization Available
Need special dimensions, seals, lubrication, or mounting configurations? Our engineering team can modify standard designs to meet your exact requirements.
Get Pricing & Technical Support
Ready to specify 248 or 249 series bearings for your equipment? As Wafangdian-based specialists, we provide complete engineering support from selection to installation guidance.
Choose Your Preferred Contact Method
Get a detailed quote or discuss your application with our engineers
Prefer to email? Send drawings or specifications to: lilyan@wjybearing.com
ISO 9001 Certified Manufacturer | Response within 24 hours
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