What are the dimensions of this SKF ball bearing?

The bearing has an inside diameter of 45 mm, an outside diameter of 100 mm, and a width of 25 mm.

What does the 2Z designation mean?

The 2Z suffix indicates that the bearing is shielded with metal dust shields on both sides.

What does the C3 clearance mean?

C3 indicates a radial internal clearance greater than normal, ideal for thermal expansion and high rotational speeds.

Which loads can this deep groove ball bearing handle?

This single-row deep groove ball bearing accommodates radial loads as well as axial loads in both directions.

SKF 6309-2Z/C3 single-row groove ball bearing cylindrical 45x100x25 mm

Supplier number: SKF 6309-2Z/C3 | EAN 7316574600465

Recommended Retail Price €79.47

39.20 tax incl.

€32.40 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Ordered before 20:00 - delivered as of 13/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

↓ Documents (1) ✆ Talk to a specialist

Reliable operation with Skf bearings

Practical benefits

Dual metal shield protection: Shields on both sides keep grease inside while blocking contaminants, ensuring you experience longer service life with minimal maintenance.
Stable high speed performance: The C3 internal radial clearance easily accommodates thermal expansion, maintaining smooth rotation under elevated operational temperatures.
Versatile bidirectional load support: The deep raceway geometry allows you to support combined radial and axial forces across diverse machinery setups.

In a nutshell

The right choise for

Keep your heavy rotating machinery running smoothly with the Skf 6309-2Z/C3 deep groove ball bearing. Engineered with a 45 mm bore, 100 mm outer diameter, and 25 mm width, this single-row steel bearing reliably handles combined radial and axial loads in both directions. Its C3 radial internal clearance accommodates thermal expansion during high-speed operations, preventing seizing under elevated working temperatures. Equipped with 2Z metal shields on both sides, it retains essential lubricant while keeping out dust and coarse debris. This robust protection delivers reduced wear, minimal maintenance, and long service life across electric motors, industrial pumps, fans, and conveyor systems.

Product information FAQ

€39.20

In stock - tax incl.

Key features according to our expert

Inner diameter: 45 mm
Width: 25 mm
Number of rows: 1
Sealing (bearing): Sealed on both sides
Material (bearing seal): Metal
Radial clearance: C3
Material (bearing): Steel
Material (cage): Brass (sheet)
Bore type: Cylindrical
High temperature: No
Outer diameter: 100 mm

Product description

Single row deep groove ball bearings with seals or shields are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.

Integral sealing prolongs bearing service life
Simple, versatile and robust design
Low friction and high-speed capability
Accommodate radial and axial loads in both directions
Require little maintenance

Documents

⤓ Technical data sheet PDF

All Features

Inner diameter: 45 mm
Width: 25 mm
Number of rows: 1
Sealing (bearing): Sealed on both sides
Material (bearing seal): Metal
Radial clearance: C3
Material (bearing): Steel
Material (cage): Brass (sheet)
Bore type: Cylindrical
High temperature: No
Outer diameter: 100 mm
Relubrication feature: Without
Radial internal clearance: C3
Basic static load rating: 31.5
Matched arrangement: No
Material, bearing: Bearing steel
Reference speed: 15000
Skf performance class: SKF Explorer
Lubricant: Grease
Sealing type: Non-contact
Cage: Sheet metal
Filling slots: Without
Tolerance class: Class P6 (P6)
Basic dynamic load rating: 55.3
Locating feature, bearing outer ring: None
Sealing: Shield on both sides
Limiting speed: 7500
Bore diameter: 45
Coating: Without
Outer diameter: 100

Brand SKF
01010945
EAN 7316574600465
Supplier number SKF 6309-2Z/C3

Frequently asked questions about this product

Answered by specialists

What are the dimensions of this SKF ball bearing?: The bearing has an inside diameter of 45 mm, an outside diameter of 100 mm, and a width of 25 mm.
What does the 2Z designation mean?: The 2Z suffix indicates that the bearing is shielded with metal dust shields on both sides.
What does the C3 clearance mean?: C3 indicates a radial internal clearance greater than normal, ideal for thermal expansion and high rotational speeds.
Which loads can this deep groove ball bearing handle?: This single-row deep groove ball bearing accommodates radial loads as well as axial loads in both directions.