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30Y/48KS Precision Steering Tapered Roller Bearing
- Ultra-Narrow Outer Envelope: 48 mm outer diameter allows for sleek housing designs around 30 mm steering shafts.
- High Axial Shock Load Capacity: Designed specifically to tolerate steering feedback forces and road vibration.
- Precision-Milled Raceways: Ensures smooth, resistance-free rotational feeling without sticking or binding.
- Direct OEM Fitment: Manufactured to strict automotive tolerances for fast, reliable replacement.
Technical Data
| Technical Parameter | Metric Value |
| Inner Bore Diameter (d) | 30.00 mm |
| Outer Diameter (D) | 48.00 mm |
| Total Width (T) | 15.00 mm |
| Precision Standard | Automotive OEM Grade / P0 |
Product Specifications
| Specification | Details |
| Item Type | Steering Column Tapered Roller Bearing |
| Model Number | 30Y/48KS |
| Bearing Design | Single Row Tapered |
| Material | Vacuum-Degassed GCr15 Steel |
| Cage Material | Reinforced Stamped Steel |
Product Introduction
The 30Y/48KS is a specialized narrow-profile metric tapered roller bearing engineered primarily for vehicle steering columns, motorcycle steering stems, and light power transmission shafts. Measuring 30 x 48 x 15 mm, this bearing features an ultra-compact 48 mm outer diameter while maintaining a robust 30 mm inner bore. Built from vacuum-degassed chrome alloy steel, the 30Y/48KS is engineered to absorb frequent axial thrust loads and steering shocks without developing clearance looseness or cage chatter, ensuring safe and precise steering control for international automotive parts suppliers.
Applications
Automotive steering columns and intermediate shafts.
Motorcycle, scooter, and e-bike steering head bearings.
Light utility vehicle gear systems.
FAQ
Q: What does the "KS" suffix indicate in 30Y/48KS?A: Suffixes like "KS" generally denote specialized dimensional modifications, cage design tweaks, or optimized inner chamfer radii for specific OEM steering setups.
Q: Can this bearing replace standard ball bearings in steering stems?A: Yes, replacing ball bearings with tapered roller bearings like 30Y/48KS provides a vastly higher contact area, dramatically improving durability against road impacts.
OEM & Custom Service
Tailored B2B services including laser etching of brand names, custom internal clearance settings, and private label box packaging.
Packing & Delivery
Coated with protective slushing oil, sealed in VCI plastic wrapping, packed into individual branded cartons, and consolidated into export-ready wooden pallets.
