What are the dimensions of this SKF ball bearing?

This bearing has a 30 mm bore diameter, a 72 mm outer diameter, and a width of 19 mm.

What does the 2Z designation mean?

The 2Z code indicates metal shields on both sides, keeping grease inside while protecting against dust and debris.

What does the C3 radial internal clearance mean?

C3 clearance is greater than standard clearance, compensating for thermal expansion or high rotational speeds.

What does the GJN suffix signify?

GJN indicates that the bearing is lubricated with SKF polyurea grease, ideal for electric motor and industrial applications.

What loads can this deep groove ball bearing handle?

This single row deep groove ball bearing accommodates radial and axial loads in both directions.

SKF 6306-2Z/C3GJN single-row groove ball bearing cylindrical 30x72x19 mm

Supplier number: SKF 6306-2Z/C3GJN | EAN 7316571544656

Recommended Retail Price €40.00

19.80 tax incl.

€16.36 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Ordered before 20:00 - delivered tomorrow 17/10/2026
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

Smooth rotation with Skf bearings

Practical benefits

Dual metal shields: The two steel shields protect internal components against debris while reliably keeping lubricant inside.
Increased radial clearance: The C3 clearance allows your machinery to maintain low-friction operation during thermal expansion.
Strong steel construction: Built from durable bearing steel, it handles combined radial and axial loads across both directions.

In a nutshell

The right choise for

With the Skf 6306-2Z/C3GJN deep groove ball bearing, you keep shafts in electric motors, pumps, compressors, and gearboxes running smoothly and reliably. The dual metal shields (2Z) securely retain the specialized gjn polyurea grease inside while locking out dust and debris, ensuring long-lasting and low-maintenance operation. Thanks to its increased C3 radial clearance, this bearing easily accommodates shaft thermal expansion under elevated operating temperatures without generating excessive friction. Featuring dimensions of 30X72X19 mm and a sturdy steel construction, this single row ball bearing handles combined radial and axial loads in both directions to keep your machinery performing at its best.

Product information FAQ

€19.80

In stock - tax incl.

Key features according to our expert

Inner diameter: 30 mm
Width: 19 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: 72 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: 30 mm
Width: 19 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: 72 mm
Relubrication feature: Without
Radial internal clearance: C3
Basic static load rating: 16
Matched arrangement: No
Material, bearing: Bearing steel
Reference speed: 20000
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: 29.6
Locating feature, bearing outer ring: None
Sealing: Shield on both sides
Limiting speed: 11000
Bore diameter: 30
Coating: Without
Outer diameter: 72

Brand SKF
01012114
EAN 7316571544656
Supplier number SKF 6306-2Z/C3GJN

Frequently asked questions about this product

Answered by specialists

What are the dimensions of this SKF ball bearing?: This bearing has a 30 mm bore diameter, a 72 mm outer diameter, and a width of 19 mm.
What does the 2Z designation mean?: The 2Z code indicates metal shields on both sides, keeping grease inside while protecting against dust and debris.
What does the C3 radial internal clearance mean?: C3 clearance is greater than standard clearance, compensating for thermal expansion or high rotational speeds.
What does the GJN suffix signify?: GJN indicates that the bearing is lubricated with SKF polyurea grease, ideal for electric motor and industrial applications.
What loads can this deep groove ball bearing handle?: This single row deep groove ball bearing accommodates radial and axial loads in both directions.