6307-2RS1/HC5C3GJN
6000 Series HC5/HC5C3 Hybrid Ceramic Bearings
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6307-2RS1/HC5C3GJN Bearing Product Overview & Core Advantages
The 6307-2RS1/HC5C3GJN is a single row deep groove ball bearing engineered for exceptional performance in demanding applications. This sealed bearing is distinguished by its hybrid ceramic construction, featuring Silicon Nitride (Si3N4) balls and chrome steel rings. This combination delivers superior high-speed capability, reduced friction, and extended service life compared to all-steel equivalents. Its design is optimized to handle significant radial loads while offering reliable operation across a wide temperature range, making it a robust and durable solution for high-reliability machinery.
Model Code Breakdown
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 6307 | Standard deep groove ball bearing series with 35mm bore, 80mm OD, 21mm width. | Defines the fundamental bearing dimensions and basic type. |
| 2RS1 | Contact seals on both sides. | Provides effective protection against contamination and retains lubricant, enhancing bearing life. |
| HC5 | Hybrid Ceramic with Silicon Nitride (Si3N4) balls. | Enables high-speed operation, electrical insulation, and reduced wear. |
| C3 | Greater than normal radial internal clearance. | Accommodates thermal expansion in high-speed or high-temperature applications. |
| GJN | Grease filling, standard grade. | Provides initial lubrication for immediate operation upon installation. |
6307-2RS1/HC5C3GJN Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The use of Silicon Nitride balls significantly reduces centrifugal forces and friction, directly contributing to the high limiting speed of 8,500 rpm. This material is also lighter and harder than steel, leading to lower operating temperatures and increased stiffness.
Robust Load Capacity: The deep groove raceway and precision construction enable the bearing to support a high radial dynamic load rating of 7509 lbf, ensuring reliable performance under substantial loads.
Enhanced Sealing & Reliability: The integral 2RS1 contact seals effectively shield the bearing interior from contaminants like dust and moisture, while retaining the pre-filled grease. This creates a maintenance-free solution for the operational lifespan in many applications.
Optimized Internal Clearance: The C3 radial clearance is engineered to accommodate shaft and housing fits, as well as thermal expansion during high-speed operation, preventing premature failure due to excessive preload.
6307-2RS1/HC5C3GJN Bearing Typical Application Areas
This bearing's unique combination of high-speed capability, hybrid construction, and sealed reliability makes it ideal for advanced applications, including:
- Electric Motor Spindles and high-frequency spindles
- Precision Machine Tools and CNC machining centers
- High-performance Robotics and automation arms
- Turbochargers and auxiliary units in the Automotive Industry
- High-RPM Medical Equipment and dental handpieces
