Description
Key Specifications & Why Engineers Choose This Tapered Roller Bearing
| Description | Core Value |
|---|---|
| Models: HR33110J / HR33111J / HR33112J / HR33113J | Precision-matched tapered roller sets for seamless interchangeability across NSK, NTN, Koyo, NACHI & Timken OEM specs |
| Precision Grades: P0, P6, P5, P4, P2 | Ultra-tight tolerances—P2 grade meets aerospace & high-speed gearbox requirements (ISO 492 compliant) |
| Material: High-Carbon Chromium Bearing Steel (GCR15/SAE52100) | Hardened to HRC 60–64 with uniform microstructure—extends L10 life by up to 40% vs. standard grades |
| Load Capacity: Radial + moderate axial (single-row design) | Optimized contact angle & roller profiling—handles combined loads in industrial gearboxes, conveyors & wind turbine yaw systems |
| Vibration Classes: Z1V1 / Z2V2 / Z3V3 | Low-noise assembly—ideal for precision machine tools and medical imaging equipment where acoustic emission matters |
| Lubrication: Grease or oil-compatible | Pre-greased options available with NLGI #2 lithium complex—reduces maintenance intervals by 30% |
| Origin & Compliance: Made in China | HS Code 8482102000 | Fully traceable batch production; 100% ISO 9001-certified manufacturing & 100% dimensional inspection |
| Stock & Lead Time: Rich inventory (1M+ units capacity) | Ready-to-ship from regional hubs—no MOQ; sample orders dispatched within 24h |
| OEM/ODM Support: Full technical documentation & custom packaging | Direct engineering collaboration—bearing drawings, test reports (CMM, vibration, noise), and RoHS/REACH certs provided |
| Differentiator vs. Generic Brands | No compromise on raceway surface finish (Ra ≤ 0.2 μm) or roller diameter variation (≤ 1.5 μm)—validated per ABEC-7 & JIS B 1514 |
FAQ: Are these bearings compatible with SKF mounting dimensions? ✅ Yes—HR3311xJ series matches SKF’s 3311xJ interchange standard. Do you offer dynamic load ratings? ✅ Full spec sheets (Cr, Cor, fatigue limits) available upon request. Can I get P2-grade samples for validation? ✅ Yes—free samples for qualified B2B buyers. What’s the max operating speed? Up to 3,200 rpm (with proper lubrication & cooling). Is cage material specified? Standard: pressed steel; optional: polyamide (PA66-GF25) for high-speed applications.
