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Linear Technology
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Seals
SKF
Deep Groove Ball Bearings SKF 6210 -Z/C4
- Technical data
- Inner diameter
- 50 mm
- Outer diameter
- 90 mm
- Width
- 20 mm
- Material
- Standard bearing steel
- Ball rows
- Single row bearing
- Seal
- Cover on one side
- Cage
- Sheet steel cage
- Clearance
- Strongly increased radial clearance
- Running accuracy
- Tolerance class P0/PN2 / ABEC 1
- Current insulation
- No current insulation
- Bore
- Cylindrical bore
- Outer ring
- Without flange/groove
- Material of rolling elements
- Standard bearing steel
- Temperature range
- -20 to +150 °C
- Weight
- 0,451 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 25 | 1,29 € | 24,44 € |
| 35 | 2,57 € | 23,16 € |
Deep Groove Ball Bearings SKF 6210 -Z/C4
The SKF 6210 -Z/C4 single-row deep groove ball bearing, with dimensions of 50x90x20 mm and a C4 clearance, offers thermal reserves for demanding shaft mountings.
The SKF 6210 -Z/C4 deep groove ball bearing is a versatile rolling bearing designed primarily for radial loads whilst also accommodating moderate axial forces. Manufactured from case-hardened standard rolling-element bearing steel 100Cr6, this single-row design has the main dimensions of a 50 mm bore, 90 mm outer diameter and 20 mm width. A sheet steel cage guides the rolling elements during operation. With a tolerance class of P0 (ABEC 1), the bearing is equally suitable for industrial mass production requirements, in-service refurbishment projects and specialist technical retailers.
What operating conditions require the 6210-Z/C4 deep groove ball bearing?
Typical applications for the 6210 -Z/C4 deep groove ball bearing include situations where there are significant temperature differences between the inner and outer rings. Thanks to its permissible temperature range of –20 to +150 degrees, the component operates in thermally stressed industrial drives or gearbox stages. The single-sided sheet metal cover shields the interior from coarse particles, whilst still allowing targeted relubrication from the opposite side within the housing cavity. This enables flexible lubrication concepts during maintenance and design.
What does the C4 bearing clearance mean for the 6210-Z model?
The C4 designation indicates a significantly increased radial bearing clearance, which is well above the standard clearance and the C3 grade. Design engineers and workshop managers select this value when tight fits on the shaft or housing reduce the radial clearance after press-fitting. Furthermore, the larger initial clearance compensates for heat-induced expansion of the shaft during continuous operation without causing forced forces in the bearing. Before installation, check whether your installation situation requires this increased bearing clearance.
What are the main dimensions of the 6210-Z/C4 deep-groove ball bearing?
This roller bearing has an inside diameter of 50 mm, an outside diameter of 90 mm and a width of 20 mm. The outer ring is cylindrical in design and has neither a flange nor a ring groove. These standardised dimensions allow for direct replacement in existing housing mountings and on corresponding shaft sections in accordance with standard industrial tolerances.
What is the purpose of the single-sided Z-deck disc?
The single-sided Z-cover is made of profiled sheet steel and acts as a non-contact gap seal. It protects the raceway system on one side against the ingress of coarser dirt particles. As the other side remains open, the bearing can be supplied with fresh lubricant from the open side of the housing without friction losses occurring at a sealing lip.
When is the significantly increased C4 clearance required?
The radial bearing clearance C4 is greater than the standard clearance and the C3 specification. It is used when higher operating temperatures cause the shaft to expand more than the housing due to thermal expansion. Even with tight press fits, the increased radial clearance helps to prevent the rolling elements from becoming jammed between the raceways.
Within what temperature range may the bearing be operated?
The component is designed for use at ambient temperatures between -20 degrees and +150 degrees. The integrated sheet steel cage and the 100Cr6 rolling bearing steel contribute to stable dimensional stability across this operating range. When specifying the operating temperature, always take into account the thermal stability of the lubricant used.
What are the features of this version of the sheet steel cage?
A cage made of pressed sheet steel is characterised by its low mass combined with high strength. It maintains an even spacing between the balls and prevents direct contact between the rolling elements. Furthermore, sheet steel is resistant to common lubricants and retains its properties up to a temperature limit of +150 degrees.
What is the tolerance class of the 6210-Z/C4 deep-groove ball bearing?
The bearing is manufactured to the standard tolerance P0, which corresponds to the designations PN and ABEC 1. This standard accuracy class meets the requirements of general drive and mechanical engineering. It ensures a precise fit on the shaft and in the housing seat, and enables cost-effective replacement during maintenance work.
SKF Group
Sven Wingquists Gata 2, 415 50 Gothenburg, Sweden
info@skf.com, https://www.skf.com/uk/footer/site-ownership
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