248 and 249 series spherical roller bearings are large-bore bearings designed for demanding industrial equipment where high radial load capacity, reliable operation, and dimensional stability are required. With bore sizes from 670 mm to 1800 mm in our listed range, these bearings are suitable for heavy-duty applications in mining, cement processing, heavy machinery, and other large industrial systems.
Explore our 248 Series Spherical Roller Bearings and 249 Series Spherical Roller Bearings, or view the complete Spherical Roller Bearing range for additional sizes and configurations.
Why Choose 248/249 Series Large Bore Bearings?
Design Advantages
- High Load Capacity: Designed for extreme radial loads and moderate axial loads in heavy industrial equipment.
- Self-Alignment: The spherical outer raceway allows the bearing to accommodate shaft and housing misalignment.
- Robust Construction: Large-size designs are suitable for demanding operating environments and heavy machinery.
- Long Service Life: Premium bearing steel and controlled heat treatment support reliable operation under heavy loads.
Typical Applications
- Mining Crushers
- Cement Kilns
- Vibrating Screens
- Gearboxes
- Paper Machinery
- Marine Propulsion
Custom designs are available for specific operating conditions and dimensional requirements.
248/249 Series Technical Specifications
The following table shows a selection of large-bore 248 and 249 series spherical roller bearings from our production range. The listed bore diameters extend from 670 mm to 1800 mm. For applications requiring different dimensions, internal configurations, or operating conditions, our engineering team can evaluate non-standard 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. | ||||
248/249 Series Bearing Photos
The following photos show examples of our large-size spherical roller bearings. Actual bearing appearance may vary according to model, cage design, internal configuration, and customer requirements.
Technical Features and Manufacturing Capabilities
Advanced Heat Treatment
Controlled carburizing and tempering processes are used to provide the required combination of surface hardness and core toughness for large industrial bearings.
Precision Grinding
CNC grinding equipment is used for raceway and dimensional processing, supporting the precision requirements of large-size spherical roller bearings.
Quality Control
Dimensional inspection, material inspection, and bearing performance checks are carried out according to applicable quality requirements and customer specifications.
Wafangdian Large Bearing Manufacturing
We manufacture large-size industrial bearings in Wafangdian, China, a major center of the Chinese bearing industry. Our production capabilities cover large and extra-large bearing sizes for demanding industrial applications.
For large-bore spherical roller bearings, manufacturing requirements often involve more than simply matching the basic bore, outside diameter, and width. Material selection, heat treatment, machining accuracy, internal clearance, cage configuration, lubrication, and operating conditions may all need to be considered during engineering.
- Large-size manufacturing: Production of large and extra-large spherical roller bearings.
- Engineering support: Evaluation of dimensional and application requirements.
- Manufacturing control: Control of machining, heat treatment, grinding, inspection, and assembly processes.
- Global logistics: Convenient access to Dalian Port for international shipments.
Need a Non-Standard Bearing?
If your required bearing is not listed in the standard range, send us the bearing number, drawing, dimensions, or application requirements. We can evaluate customized large-size bearing solutions.
View Non-Standard BearingsExplore 248/249 Series and Other Spherical Roller Bearings
Looking for a 248 or 249 Series Bearing?
Send us your bearing number, drawing, required dimensions, or application details. Our engineering team can check the required configuration and provide a quotation for your large-bore spherical roller bearing.