6021-2Z/C4VT127C
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6021-2Z/C4VT127C Bearing Product Overview & Core Advantages
The 6021-2Z/C4VT127C is a single row deep groove ball bearing engineered for high-performance industrial applications. This shielded bearing is designed to primarily handle radial loads while also accommodating moderate axial loads in both directions. Its key advantages include a robust construction using high-grade chrome steel for all critical components, ensuring exceptional durability and a long service life. The bearing features a generous C4 radial internal clearance, making it suitable for applications with thermal expansion or where interference fits are used. As a pre-lubricated and shielded unit, it offers reliable, low-maintenance operation right out of the box.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6021 | Basic bearing series, indicating a single row deep groove ball bearing with specific dimensions (105mm bore, 160mm OD, 26mm width). |
| 2Z | Bearing is equipped with non-contact shields on both sides. This provides effective protection against contamination while minimizing friction and heat generation. |
| C4 | Specifies a greater than normal radial internal clearance. This is critical for applications involving thermal expansion, shaft misalignment, or heavy interference fits. |
| VT127C | Indicates the bearing is pre-lubricated with a specific high-temperature grease. This ensures immediate operational readiness and extends the lubrication interval. |
6021-2Z/C4VT127C Bearing Structural Features & Performance Benefits
Optimized Deep Groove Geometry: The raceway geometry is designed for smooth operation and efficient load distribution, contributing to the high radial dynamic load rating of 16,254 lbf and static load rating of 14,792 lbf.
Dual Non-Contact Shields (2Z): These steel shields protect the internal components from dust and debris without significant contact with the inner ring, allowing for a high limiting speed of 4,000 rpm and reducing friction-related wear.
High-Grade Material Integrity: The use of chrome steel for the rings, balls, and cage ensures consistent hardness, wear resistance, and dimensional stability across a wide temperature range of -30°C to 120°C.
C4 Internal Clearance: This feature provides operational flexibility in demanding environments, preventing premature failure due to thermal expansion or fitting stresses, thereby enhancing bearing reliability.
6021-2Z/C4VT127C Bearing Typical Application Areas
The 6021-2Z/C4VT127C is ideally suited for a wide range of industrial machinery and equipment, including:
- Electric Motors and Generators
- Industrial Gearboxes and Transmissions
- Material Handling Conveyors
- Agricultural Machinery
- Ventilation and Fan Systems
