61908-2RZ
618 & 619 Series Thin Section Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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61908-2RZ Bearing Product Overview & Core Advantages
The 61908-2RZ is a metric single row deep groove ball bearing designed for precision applications requiring high reliability. Featuring integrated seals (2RZ) and pre-lubrication, this bearing delivers exceptional performance in radial load applications while offering protection against contamination. Its compact design with 40mm bore diameter and P6 tolerance class ensures precise operation, making it ideal for applications demanding high rotational accuracy and consistent performance.
61908-2RZ Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
| 61908 | Basic designation for deep groove ball bearing series with 40mm bore | Standardized dimensions and load capacity |
| 2RZ | Non-contact rubber seals on both sides | Effective contamination protection with minimal friction increase |
61908-2RZ Bearing Structural Features & Performance Benefits
Optimized Sealing System: The 2RZ non-contact rubber seals provide superior protection against dust and moisture while maintaining low torque characteristics, enabling operation at limiting speeds up to 12,000 rpm.
Precision Engineering: Manufactured to P6 tolerance class with CN radial internal clearance, this bearing ensures consistent running accuracy and minimal vibration in precision applications.
Material Excellence: Constructed with chrome steel rings and balls combined with stainless steel cage, providing excellent durability and corrosion resistance in demanding environments.
Maintenance-Free Operation: Factory-pre-lubricated with high-quality grease, offering reliable performance across the entire temperature range from -30°C to 120°C without requiring re-lubrication.
61908-2RZ Bearing Typical Application Areas
- Electric Motors: Ideal for small to medium-sized motors requiring sealed bearing solutions
- Precision Machinery: Suitable for machine tool accessories, measuring instruments, and optical devices
- Automotive Components: Used in alternators, starters, and auxiliary motor applications
- Medical Equipment: Applications in dental handpieces, small pumps, and laboratory instruments
- Office Automation: Printers, scanners, and copiers requiring reliable rotational components
