61807/C4
618 & 619 Series Thin Section Bearings
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Basic Information
Main Dimensions
Performance
Materials
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61807/C4 Bearing Product Overview & Core Advantages
The 61807/C4 is a metric single row deep groove ball bearing engineered for precision radial load applications. Characterized by its C4 radial internal clearance, this bearing is optimized for operational conditions requiring thermal expansion accommodation, such as in electric motors or gearboxes. Its compact design with a 7mm width provides space-saving solutions while maintaining high running accuracy through ABEC 1 precision tolerances. The open construction allows for versatile lubrication options while chrome steel components ensure durability across a -30° to 120°C temperature range.
61807/C4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Impact |
| 61807 | Standard deep groove ball bearing series with 35mm bore | Reliable radial load capacity in compact dimensions |
| C4 | Greater than normal radial internal clearance | Accommodates thermal expansion, reduces operating temperature |
61807/C4 Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: The deep groove raceway and precision-ground components enable smooth operation at limiting speeds up to 18,000 rpm while maintaining low vibration levels.
Enhanced Thermal Performance: The C4 clearance specification provides additional space for thermal expansion, making this bearing ideal for applications with significant temperature variations or where interference fits are used.
Superior Material Construction: Manufactured from chrome steel (GCr15 equivalent) for both rings and balls, ensuring consistent hardness (60-64 HRC) and extended service life under radial dynamic loads up to 980 lbf.
Precision Manufacturing: ABEC 1 (ISO P0) tolerance class guarantees dimensional consistency and reliable performance in industrial applications.
61807/C4 Bearing Typical Application Areas
- Electric Motors: Main shaft support in small to medium-sized motors where thermal expansion management is critical
- Gearboxes and Transmissions: Precision positioning and power transmission components
- Industrial Pumps: Impeller shafts and rotating assemblies requiring reliable radial load support
- Precision Instruments: Measurement devices and optical equipment demanding high running accuracy
- Automotive Components: Auxiliary systems, alternators, and small mechanical assemblies
- Material Handling Equipment: Conveyor rollers and small power transmission units
