Welcome to Linqing Xinshengdi Bearing Co., Ltd.
M244249/M244210D Heavy-Duty Double Row Tapered Roller Bearing
- Extreme Load Rating: Extra-wide 131.762 mm profile accommodates longer rolling elements for maximum dynamic and static load support.
- Thermal Stability: Engineered to maintain dimensional stability and precise internal clearances even under high operational temperatures.
- Matched Assembly: Cones, cup, and spacers are precisely ground and matched at the factory to eliminate installation guesswork.
- Optimized Geometry: Super-finished raceways reduce friction, lowering energy loss in massive mechanical systems.
Technical Data
| Technical Parameter | Metric Value |
| Inner Bore Diameter (d) | 220.662 mm |
| Outer Diameter (D) | 314.325 mm |
| Total Width (T) | 131.762 mm |
| Precision Standard | ABEC-1 / P0 |
Product Specifications
| Specification | Details |
| Item Type | Double Row Tapered Roller Bearing |
| Model Number | 244249/244210D |
| Bearing Design | Double Row Tapered (TDO) |
| Material | Vacuum-Degassed GCr15 Chrome Steel |
| Cage Material | High-Strength Stamped Steel |
Product Introduction
The 244249/244210D is an ultra-large, double-row tapered roller bearing designed specifically for the most demanding mechanical environments. Measuring 220.662 x 314.325 x 131.762 mm, this massive assembly utilizes a double outer cup to effectively distribute extreme combined loads (radial and bi-directional axial). Forged from top-tier, high-purity bearing steel, it undergoes advanced heat treatments to maximize core toughness and raceway hardness. Global B2B suppliers rely on the 244249/244210D for heavy axle integrations, large crane setups, and critical metallurgical applications where failure is not an option.
Applications
Heavy machinery axles and heavy-duty crane sheaves.
Metallurgical rolling mills and continuous casting machines.
Marine propulsion systems and large industrial power transmissions.
FAQ
Q: Can this large bearing be shipped via standard freight?
A: Due to its substantial weight and size, we utilize specialized heavy-duty wooden crates and coordinate with reliable LCL/FCL ocean freight partners for secure B2B delivery.
Q: Do you provide material test certificates for this model?
A: Yes, full Certificates of Analysis (COA) guaranteeing steel purity and dimensional accuracy are provided with all heavy-industrial bearing orders.
OEM & Custom Service
We offer specialized B2B solutions including precision laser etching for large-scale OEM fleets, customized lubrication holes, and heavy-cargo logistics management.
Packing & Delivery
Heavily coated with rust preventative oil, hermetically sealed in heavy-gauge VCI polymer barrier bags, and bolted into custom-built, reinforced wooden export boxes.
