61908-2RZ/W64
618 & 619 Series Thin Section Bearings
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61908-2RZ/W64 Bearing Product Overview & Core Advantages
The 61908-2RZ/W64 is a single row deep groove ball bearing designed for high reliability in demanding applications. This sealed bearing features a compact design with a 40 mm bore, offering excellent performance for radial loads. Its key advantages include long service life due to integral Solid Oil lubrication and consistent operation across a wide temperature range from -30°C to 120°C. Manufactured to ABEC 1 | ISO P0 tolerance standards, it ensures precision and reliability for general industrial use.
61908-2RZ/W64 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 61908 | Basic bearing designation | Deep groove ball bearing series with 40mm bore, 62mm OD |
| 2RZ | Non-contact rubber seals on both sides | Provides effective protection against contaminants while maintaining low friction |
| W64 | Solid Oil lubrication | Pre-lubricated with polymer-based oil matrix for maintenance-free operation and extended service life |
61908-2RZ/W64 Bearing Structural Features & Performance Benefits
Optimized Sealing System: The 2RZ non-contact rubber seals provide superior protection against dust, moisture, and other contaminants while minimizing friction, contributing to the bearing's limiting speed of 14,000 rpm.
Advanced Lubrication Technology: The Solid Oil (W64) filling replaces traditional grease, eliminating oil leakage and providing consistent lubrication throughout the bearing's service life. This makes the bearing ideal for applications where re-lubrication is difficult or impossible.
Precision Manufacturing: Manufactured from chrome steel for all bearing components (rings, balls, cage) and built to ABEC 1 | ISO P0 tolerance class, ensuring consistent performance and radial dynamic load rating of 3102 lbf.
Standard Internal Clearance: The CN clearance provides optimal performance for most general applications, accommodating normal operating temperatures and fits.
61908-2RZ/W64 Bearing Typical Application Areas
- Electric Motors - Small to medium-sized motors requiring sealed, maintenance-free operation
- Industrial Gearboxes - General power transmission applications
- Material Handling Equipment - Conveyor systems and pulley assemblies
- Agricultural Machinery - Implement drives and auxiliary systems
- HVAC Systems - Blower motors and fan assemblies
- Office Automation Equipment - Printers, copiers, and scanners
