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SKF
Deep Groove Ball Bearings SKF 6301 -2Z/C3
- Technical data
- Inner diameter
- 12 mm
- Outer diameter
- 37 mm
- Width
- 12 mm
- Material
- Standard bearing steel
- Ball rows
- Single row bearing
- Seal
- Cover on both sides
- Cage
- Sheet steel cage
- Clearance
- Slightly 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 +120 °C
- Weight
- 0,061 kg
| Scale quantity | Your discount | Unit price |
|---|---|---|
| 25 | 0,24 € | 4,48 € |
| 50 | 0,48 € | 4,24 € |
| 150 | 0,71 € | 4,01 € |
| 250 | 0,95 € | 3,77 € |
Deep Groove Ball Bearings SKF 6301 -2Z/C3
The SKF 6301 -2Z/C3 deep-groove ball bearing combines compact dimensions of 12 × 37 × 12 mm with cover plates on both sides and increased C3 bearing clearance for demanding radial loads.
The 6301 -2Z/C3 deep groove ball bearing is a single-row rolling bearing made from standard bearing steel (100Cr6) with a 12 mm bore and an outer diameter of 37 mm. This SKF component primarily accommodates radial loads as well as moderate axial forces. Thanks to the metal shields on both sides (2Z), the design protects the interior from coarse dirt particles, whilst the increased C3 radial clearance compensates for thermal expansion during operation. Manufacture to the Normal tolerance class (P0/PN or ABEC 1) ensures dimensional accuracy in industrial assemblies.
What is the 6301-2Z/C3 deep groove ball bearing suitable for in industrial applications?
This deep-groove ball bearing is typically used in rotating shaft bearings that require constant rotational speeds. Thanks to its permissible temperature range of –20 to +120 degrees Celsius and its sheet steel cage, the design is suitable for a wide range of industrial applications involving predominantly radial loads. The non-contact gap seals do not generate any additional friction, which is why the mechanism remains smooth-running even at higher speeds. For maintenance and original equipment, the standardised size offers a straightforward solution for installation and replacement.
What are the advantages of combining 2Z cover plates with C3 bearing clearance?
The designation -2Z stands for sheet metal cover plates fitted on both sides. These keep out dirt particles without generating additional heat through friction. In addition, bearing clearance class C3 ensures greater radial operating clearance than with standard bearings. If the inner and outer rings are constricted by tight fits, or if temperature differences arise between the shaft and housing during continuous operation, the increased clearance prevents the rolling elements from jamming. A cylindrical bearing seat without edge loading further supports the running accuracy of tolerance class ABEC 1.
What are the dimensions of the 6301 -2Z/C3 deep-groove ball bearing?
The bearing has an inside diameter of 12 mm, an outside diameter of 37 mm and a width of 12 mm. The outer ring is cylindrical in design and has neither a flange nor a ring groove. These standardised key dimensions enable a precise fit when replacing bearings in standardised bearing seats in drives and mechanical engineering components.
What does the suffix ‘2Z’ mean for this roller bearing?
The designation 2Z indicates cover plates made of profiled sheet steel fitted on both sides. These gap covers protect the rolling elements and raceways from the ingress of solid contaminants. As the shields do not come into contact with the inner ring, no additional frictional torque is generated, which promotes energy-efficient operation at higher speeds.
Why does the bearing have a clearance rating of C3?
The designation C3 indicates a slightly increased radial bearing clearance compared with the standard version. This additional clearance serves to compensate for operational thermal expansion of the shaft or dimensional contraction caused by tight fits. This ensures that the rolling elements run freely in the raceways even under thermal stress, without any internal stresses arising.
What is the temperature range for which the 6301-2Z/C3 deep-groove ball bearing is designed?
The component is designed for an operating temperature range of -20 to +120 degrees Celsius. Both the 100Cr6 roller bearing steel used and the sheet steel cage and metal end plates are designed to withstand this temperature range. When used within these limits, all components retain their dimensional stability.
What type of cage is fitted in the 6301-2Z/C3 deep-groove ball bearing?
In this design, a stamped sheet steel cage guides the rolling elements, which are arranged in a single row. This type of cage is characterised by its low weight combined with high mechanical strength. It maintains an even spacing between the balls and withstands the vibrations and acceleration forces typically encountered in everyday industrial use.
What is the tolerance class of the SKF deep-groove ball bearing?
The bearing complies with the standard tolerance P0 (PN), which corresponds to class ABEC 1 in international terminology. This tolerance class defines the permissible dimensional and runout deviations for general mechanical engineering. It ensures a precise fit when mounted on ground shafts and in precisely machined housing bores.
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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