6205 ZZ C3 KINEX Deep-Groove Ball Bearing (25x52x15)

• Applications & Use Cases

• Key Benefits & Performance Features

• Technical Specifications

Main Description

The 6205 ZZ C3 KINEX deep-groove ball bearing is a robust and versatile solution designed for demanding industrial applications. With inner diameter 25 mm, outer diameter 52 mm, and a width of 15 mm, this single-row bearing is engineered to deliver reliable performance with both radial and axial loads.

Thanks to the ZZ designation, the bearing features metal shields on both sides, providing excellent protection from dust and contamination while retaining lubricant inside — ideal for long-term, low-maintenance use. The C3 internal clearance gives it greater radial play than standard bearings, allowing for thermal expansion and ensuring stable operation at higher speeds or in fluctuating temperature environments. This makes it particularly suitable for high-speed or thermally dynamic conditions.

KINEX, a trusted bearing manufacturer, provides high-quality deep groove ball bearings known for their durability and precision. The high-grade steel construction and reliable lubrication make this bearing ideal for use in industrial machinery, motors, gearboxes, pump units, and other B2B equipment.

Because of its design, the 6205 ZZ C3 KINEX offers low friction, quiet operation, and long service life — all without frequent relubrication. These characteristics make it a strong candidate for integration in bearing housings or bearing units, especially where reliability is crucial.

Technical Specifications

• Bearing Type: Deep-groove, single-row ball bearing

• Manufacturer: KINEX

• Bore (d): 25 mm

• Outer diameter (D): 52 mm

• Width (B): 15 mm

• Internal Clearance: C3 (increased)

• Seals: Double metallic shields (ZZ)

• Material: Bearing steel (quality chrome steel)

• Dynamic Load Rating: ~14 kN (depending on manufacturer)

• Static Load Rating: ~7.8 kN

• Limiting Speed: up to ~15,000 rpm (shielded design)

• Cage Type: Steel sheet metal or pressed steel depending on spec

Applications & Use Cases

• Ideal for industrial machinery: motors, gearboxes, and pump drives.

• Well-suited for bearing units and bearing housings used in production lines.

• Applicable in automotive assembly, HVAC equipment, and compressors.

• Great for systems with thermal expansion or varying operating temperatures, due to its C3 clearance.

Key Benefits & Performance Features

• High Durability: Superior steel construction combined with double shields extends bearing life.

• Enhanced Thermal Tolerance: The C3 clearance accommodates temperature-induced expansion, reducing risks of binding.

• Low Maintenance: Pre-lubricated and shielded, requiring minimal relubrication.

• Low Friction & Noise: Optimized geometry for smooth rotation even at higher speeds, translating to efficient operation.

• Versatility: Can be used as a standalone radial bearing or integrated into bearing units or housings, offering flexibility in industrial designs.

FAQ

Q1: What does the “C3” clearance mean and when is it important?
A1: C3 means the bearing has more internal radial clearance than a standard bearing. This extra space helps when your equipment experiences thermal expansion or operates at high speed — the bearing can tolerate slight growth in shaft or housing without binding.

Q2: Why choose a “ZZ” shielded bearing instead of a sealed one?
A2: The ZZ shield offers metallic protection on both sides, guarding against dust and debris while allowing very high-speed operation. Unlike rubber seals (e.g., 2RS), metal shields introduce less drag, making them suitable for high-rpm industrial settings.

Q3: Can this bearing handle both radial and axial loads?
A3: Yes — as a deep-groove ball bearing, the 6205 ZZ C3 is designed to support radial loads and moderate axial (thrust) loads in both directions, making it very versatile in industrial applications.

Q4: How fast can this bearing run?
A4: Depending on the specific manufacturer and lubrication, shielded 6205 bearings such as this one can achieve limiting speeds around 14,000-15,000 rpm.

Q5: Is this bearing ready to install or does it need additional lubrication?
A5: It comes pre-lubricated from the factory, so it is ready for installation in most industrial applications. The metall ic shields (ZZ) help retain grease over long service periods, reducing maintenance needs.