61902-2RZ/C3VT105
618 & 619 Series Thin Section Bearings
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61902-2RZ/C3VT105 Bearing Product Overview & Core Advantages
The 61902-2RZ/C3VT105 is a metric single row deep groove ball bearing designed for compact applications requiring high reliability. Its key advantage lies in its ability to efficiently handle radial loads while offering a sealed design for enhanced protection. This bearing is characterized by its small cross-section and is engineered for applications demanding precision and long service life, making it an ideal choice for space-constrained, high-speed assemblies.
61902-2RZ/C3VT105 Bearing Model Code Explained, Specifications & Naming Convention
- 61902: Basic designation for a metric single row deep groove ball bearing with a 15mm bore and 28mm outside diameter.
- -2RZ: Signifies that the bearing is fitted with non-contact rubber seals (RZ type) on both sides. This provides effective protection against contaminants while minimizing friction.
- /C3: Indicates a greater radial internal clearance than the Normal (CN) group. This is suitable for applications with higher operating temperatures or where fits result in a reduction of internal clearance.
- VT105: This suffix denotes that the bearing is pre-lubricated with a specific high-performance grease (VT105), optimized for the specified operating temperature range.
61902-2RZ/C3VT105 Bearing Structural Features & Performance Benefits
Optimized Sealing & Lubrication: The combination of non-contact rubber seals (2RZ) and factory-applied VT105 grease provides a robust, long-lasting lubrication system. This design effectively excludes contaminants and retains lubricant, contributing to a maintenance-free operational life within the specified conditions.
High-Speed Capability: Featuring a chrome steel cage and optimized internal geometry, this bearing is capable of achieving a high limiting speed of 34,000 rpm, making it suitable for demanding high-speed applications.
Precision & Load Capacity: Manufactured to ABEC 1 | ISO P0 tolerance class, it ensures consistent performance and smooth operation. The deep groove raceway design enables it to carry significant radial dynamic and static loads for its compact size.
61902-2RZ/C3VT105 Bearing Typical Application Areas
This bearing is commonly specified in a variety of compact and high-speed machinery, including:
- Small Electric Motors and Spindles
- Precision Medical Equipment
- Office Automation Equipment (e.g., printers, scanners)
- Computer Cooling Fans
- Instrumentation and Control Devices
