Welcome to Linqing Xinshengdi Bearing Co., Ltd.
3506/228X4 Four-Row Tapered Roller Bearing 228.6x488.92x345mm
- Four-Row Heavy Load Capacity: Multi-row roller placement delivers maximum radial payload support and absorbs severe repeated shock loads.
- Manual Assembly Alignment: At Linqing Xinshengdi Bearing Co., Ltd., we utilize specialized manual fitment to match each set of rollers and cages, ensuring zero binding under massive torque.
- Thermal Distortion Resistance: Case-hardened structural steel maintains raceway geometry under extreme operating temperatures inside rolling mill roll necks.
- Precision Machined Cages: Heavy-duty guided cages prevent roller skewing during rapid acceleration and reversing cycles.
Technical Data
| Technical Parameter | Metric Value |
| Inner Bore Diameter (d) | 228.60 mm |
| Outer Diameter (D) | 488.92 mm |
| Total Width (B/T) | 345.00 mm |
| Precision Standard | ISO P0 / ABEC-1 |
Product Specifications
| Specification | Details |
| Item Type | Four-Row Tapered Roller Bearing |
| Model Number | 3506/228X4 |
| Material | High-Purity GCr15 Chrome Steel |
| Dimensions (Metric) | 228.60 mm x 488.92 mm x 345.00 mm |
| Load Orientation | High Radial & Bidirectional Thrust |
Product Introduction
The 3506/228X4 is an extra-heavy four-row tapered roller bearing engineered specifically for high-capacity industrial power transmission and heavy steel rolling mill applications. Featuring a 228.6 mm bore, a 488.92 mm outer diameter, and a 345 mm overall width, this multi-row configuration allows for maximum load distribution across four synchronized raceways. Manufactured from top-tier GCr15 chromium alloy steel and heat-treated for superior fatigue resistance, the 3506/228X4 handles combined heavy radial and double-direction thrust forces. It is a premium high-margin component for industrial machinery rebuilders and steel mill maintenance suppliers globally.
Applications
Metal rolling mill roll necks (hot and cold rolling mills).
Heavy mining crushers, pulverizers, and mineral processing machinery.
Large industrial reduction gearboxes and heavy marine drives.
FAQ
Q: How is this heavy bearing packed for overseas shipping?
A: Due to its substantial weight and dimensions, each bearing is coated with heavy-duty anti-corrosion grease, sealed in thick barrier film, and secured in a reinforced wooden crate suitable for heavy ocean freight.
Q: Can you supply this bearing with customized internal clearances?
A: Yes, we provide tailored radial and axial internal clearance adjustments (e.g., C3/C4) to match your customer's specific operational temperature parameters.
OEM & Custom Service
B2B services include custom laser marking of serial numbers, tailored internal clearance tolerances, and heavy-duty ocean export crating options.
Packing & Delivery
Coated with rust-inhibitive compounds, vacuum-sealed in heavy plastic wrapping, and bolted inside custom wooden crates for safe international transportation.
