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NP973170/NP271964 Thin-Section Tapered Roller Bearing 140x195x33mm
- Compact Thin-Section Profile: Large 140mm bore relative to the 195mm outer diameter maximizes hollow shaft passage in tight mechanical housings.
- High Rigidity: Precision rollers distribute heavy dynamic forces evenly across super-finished raceways.
- Independent Assembly Mounting: Separable cone and cup allow easy fitment in complex multi-component housings.
- Extensive Service Life: Deeply hardened raceway cores prevent fatigue spalling under high continuous rotational torque.
Technical Data
| Technical Parameter | Metric Value |
| Inner Bore Diameter (d) | 140.00 mm |
| Outer Diameter (D) | 195.00 mm |
| Total Width (T) | 33.00 mm |
| Precision Standard | ISO P0 / ABEC-1 |
Product Specifications
| Specification | Details |
| Item Type | Metric Thin-Section Tapered Roller Bearing |
| Model Number | NP973170/NP271964 (Cone: NP973170 / Cup: NP271964) |
| Material | Vacuum-Degassed GCr15 Chrome Steel |
| Cage Material | Stamped Steel Cage |
| Structure | Single Row Tapered |
Product Introduction
The NP973170/NP271964 is a high-capacity, thin-section tapered roller bearing engineered for machinery where a large shaft diameter must fit inside a limited outer housing. Featuring a 140 mm inner bore, 195 mm outer diameter, and 33 mm total width, this assembly (Cone: NP973170, Cup: NP271964) offers an outstanding strength-to-weight ratio. Constructed from vacuum-degassed GCr15 bearing steel, it is designed to support high radial loads and single-direction axial thrust while optimizing space and reducing rotating mass in specialized industrial gear units and heavy drive assemblies.
Applications
Heavy machinery gear units, hollow-shaft speed reducers, and rotary drives.
Mining conveyors, industrial crushing plants, and heavy material handling.
Large industrial pumps, blowers, and marine winches.
FAQ
Q: What is the main advantage of the NP thin-section series?
A: It accommodates large-diameter shafts (140mm) without requiring massive, heavy housings, saving significant envelope space and total equipment weight.
Q: Does this bearing support axial loads in both directions?
A: As a single-row tapered bearing, it supports axial loads in one direction. To handle bi-directional axial loads, it should be mounted in opposing pairs.
OEM & Custom Service
Services include custom laser engraving, tailored radial internal clearances (C3/C4), custom rust-preventative coatings, and ocean-freight wooden crate packaging.
Packing & Delivery
Protected with heavy anti-rust oil, heat-sealed inside VCI plastic barrier bags, and packed into heavy-duty corrugated cartons or export wooden boxes.
