6203-2RSH/C3MT37C
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6203-2RSH/C3MT37C Bearing Product Overview & Core Advantages
The 6203-2RSH/C3MT37C is a sealed single row deep groove ball bearing engineered for high reliability in demanding applications. Its core advantage lies in its ability to handle significant radial loads while offering robust protection against contamination. The combination of low-friction seals and a C3 radial internal clearance makes it an excellent choice for applications requiring stable operation under varying thermal conditions. This bearing is designed for precision and long service life in compact assemblies.
6203-2RSH/C3MT37C Bearing Model Code Explained, Specifications & Naming Convention
- 6203: Standard designation for a single row deep groove ball bearing with a 17mm bore, 40mm OD, and 12mm width.
- 2RSH: Indicates the bearing is fitted with two contact seals (RS) on both sides. The "H" suffix denotes a high-temperature resistant NBR seal, providing superior exclusion of contaminants and retention of grease.
- C3: Specifies a radial internal clearance greater than the Normal (CN) group. This is optimal for applications with interference fits or where operational heat generation causes expansion, ensuring smooth running.
- MT37C: Signifies the bearing is pre-lubricated with a specific high-quality, lithium soap-based grease. This grease is suitable for the specified temperature range and contributes to the bearing's maintenance-free and long-life characteristics.
6203-2RSH/C3MT37C Bearing Structural Features & Performance Benefits
Robust Sealing for Contaminated Environments: The 2RSH contact seals are the primary feature, effectively shielding the internal raceways and balls from dust, moisture, and other particulates. This significantly enhances bearing life in harsh conditions.
Optimized Internal Clearance for Thermal Stability: The C3 clearance is a critical performance feature. It accommodates dimensional changes from interference fits and thermal expansion during operation, preventing pre-load and seizure, which is vital for maintaining low running noise and consistent performance.
High Load Capacity and Durability: Manufactured from hardened chrome steel for both rings and balls, this bearing delivers a high dynamic and static load rating for its compact bearing dimensions (17mm x 40mm x 12mm), ensuring reliable performance under substantial radial loads.
Ready-to-Install and Maintenance-Free: Being factory-filled with MT37C grease and sealed, the bearing is lubricated for life under normal operating conditions, eliminating the need for re-lubrication and reducing maintenance overhead.
6203-2RSH/C3MT37C Bearing Typical Application Areas
The 6203-2RSH/C3MT37C is versatile and commonly specified in:
- Electric Motors: Especially small to medium-sized AC/DC motors requiring sealed, maintenance-free operation.
- Industrial Gearboxes and Transmissions: For supporting shafts in compact power transmission systems.
- Agricultural Machinery: In components like idler pulleys and rollers that operate in dusty, outdoor environments.
- Material Handling Equipment: Conveyor rollers and pulleys where reliability and contamination resistance are key.
- HVAC Fans and Blowers: For supporting fan shafts, benefiting from the seal's ability to retain grease and exclude debris.
