SKF 6302-Z 15x42x13 - Deep Groove Ball Bearing

SKF 6302-Z 15x42x13 mm - Single Row Deep Groove Ball Bearing

Product Description

SKF 6302-Z is a single row deep groove ball bearing manufactured by SKF, with nominal dimensions of 15x42x13 mm. It belongs to the 63 dimensional series and features a non-contact metal shield on one side, identified by the suffix Z. The opposite side remains open. Its deep groove construction allows the bearing to accommodate radial loads and axial loads in both directions, within the manufacturer's specified operating limits.

The SKF 6302-Z bearing is designed to support rotating shafts with a nominal diameter of 15 mm.

The single metal shield helps reduce the ingress of contaminants from one side and limits lubricant escape. However, it does not provide the same sealing protection as a contact rubber seal.

The open side is important when considering lubrication, bearing installation and the protection provided by the surrounding mechanical assembly.

Correct bearing selection requires verification of the complete designation, dimensions, shield arrangement, internal clearance, operating speed, loads and lubrication conditions.

Technical Specifications - SKF 6302-Z

The basic dynamic and static load ratings are published for the SKF 6302 bearing family. Operating speed limits depend on the bearing execution, shielding and operating conditions. Speed ratings for the open version must not automatically be assigned to the SKF 6302-Z.

Other parameters, including the fatigue load limit, reference speed, limiting speed, bearing weight, cage material, grease specification and GTIN, are not stated here without confirmed data for this exact execution.

SKF 6302-Z Bearing Dimensions

The dimensions 15x42x13 mm identify the three principal mounting dimensions.

• 15 mm - nominal shaft diameter.

• 42 mm - nominal housing bore diameter.

• 13 mm - axial bearing width.

These dimensions are essential for mechanical compatibility, but they do not independently establish interchangeability with other 6302 bearing variants.

Shielding, internal clearance, cage construction and operating requirements must also be considered.

What Does SKF 6302-Z Mean?

SKF - Bearing Manufacturer

SKF is a manufacturer of rolling bearings and related industrial components.

The SKF designation identifies the manufacturer responsible for the bearing's technical specification and product nomenclature.

6302 - Bearing Basic Designation

The designation 6302 identifies a single row deep groove ball bearing belonging to the 63 dimensional series.

The final digits 02 correspond to a nominal bore diameter of 15 mm.

The bearing has nominal dimensions of 15x42x13 mm.

Z - Single Metal Shield

The SKF suffix Z identifies a non-contact metal shield on one side of the bearing.

The shield helps limit contamination ingress and lubricant escape without creating a contact seal against the rotating ring.

The opposite side remains open.

A metal shield should not be confused with a rubber contact seal.

Internal Clearance

The designation SKF 6302-Z does not specify increased C3 internal clearance.

The standard execution uses normal internal clearance, commonly designated CN.

If a particular application requires C3, C4 or another clearance specification, the complete bearing designation must be verified.

Commercial and Catalogue Designations

The product may appear in commercial listings as 6302 Z, while the SKF catalogue format is 6302-Z.

The original manufacturer's designation should be checked on the bearing or its packaging when ordering.

Construction of the SKF 6302-Z Deep Groove Ball Bearing

Inner Ring

The inner ring has a nominal bore diameter of 15 mm and is intended to be mounted on a compatible shaft.

Its raceway provides the rolling contact surface for the balls.

Correct shaft fit is important for bearing operation and service life.

Outer Ring

The outer ring has a nominal outside diameter of 42 mm.

It provides the external raceway and interfaces with the housing.

The housing fit must be selected according to loading conditions and the requirements of the mechanical assembly.

Rolling Elements

The SKF 6302-Z is a single row ball bearing.

The balls roll between the inner and outer ring raceways, enabling relative rotation with rolling contact.

The deep groove raceway geometry allows the bearing to accommodate radial loads and axial loads in both directions.

Actual permissible load combinations depend on the operating conditions and bearing calculations.

Cage

The cage maintains separation between the rolling elements and guides their movement.

The exact cage material and execution should be verified for the specific SKF 6302-Z product rather than inferred from another 6302 variant.

Single Metal Shield

The Z shield is positioned on one side of the bearing.

Its main functions are to:

• Reduce the ingress of contaminants from the shielded side.

• Help retain lubricant within the bearing.

• Provide non-contact protection without the friction associated with a contacting seal.

Because the shield is non-contacting, it does not provide complete protection against water, fine dust or aggressive contamination.

Open Side

The opposite side of the SKF 6302-Z remains open.

This characteristic is relevant to lubrication arrangements and the protection provided by the surrounding equipment.

The open side may require additional environmental protection depending on the application.

SKF 6302-Z vs Other 6302 Bearing Variants

All the listed variants belong to the 6302 dimensional family and have nominal dimensions of 15x42x13 mm.

However, they are not automatically interchangeable.

SKF 6302-Z vs SKF 6302-2Z

Both bearings have the same nominal mounting dimensions.

The SKF 6302-Z has one metal shield, while the SKF 6302-2Z has metal shields on both sides.

This difference affects protection and lubrication arrangements.

SKF 6302-Z vs SKF 6302-2RSH

The SKF 6302-Z uses one non-contact metal shield.

The SKF 6302-2RSH uses contact seals on both sides.

Contact seals provide a different level of protection and introduce different friction characteristics.

The correct version depends on contamination exposure, operating speed, lubrication and application requirements.

SKF 6302-Z vs SKF 6302/C3

The SKF 6302-Z has one metal shield and does not specify increased C3 clearance.

The SKF 6302/C3 is an open bearing with greater-than-normal internal clearance.

These bearings differ in both shielding and clearance specification.

They should not be treated as direct equivalents without an engineering assessment.

Alternative Designations and Search References

Natural variations of the product designation include:

• SKF 6302-Z

• 6302-Z SKF

• SKF 6302 Z

• 6302 Z SKF

• SKF6302-Z

These variations refer to the same product identification.

They are not OEM reference numbers or verified equivalents from other manufacturers.

No unconfirmed cross-reference numbers have been assigned.

How to Select the Correct SKF 6302-Z Bearing

Before purchasing, verify the following technical requirements.

1. Complete designation: SKF 6302-Z.

2. Manufacturer: SKF, where the manufacturer is specified by the equipment documentation.

3. Bore diameter: 15 mm.

4. Outside diameter: 42 mm.

5. Bearing width: 13 mm.

6. Shield configuration: one metal shield.

7. Internal clearance: appropriate for the operating conditions.

8. Cage execution: compatible with the application requirements.

9. Accuracy class: suitable for the mechanical assembly.

10. Rotational speed: within the limits of the selected bearing execution.

11. Radial and axial loads: compatible with the bearing's rated performance.

12. Operating temperature: compatible with the bearing and lubricant.

13. Lubrication: appropriate for the bearing and equipment design.

14. Environmental conditions: adequate protection against contamination.

15. Shaft and housing fits: suitable for the load and mounting arrangement.

The complete SKF designation is important because bearings with identical dimensions may have different shielding, internal clearance and operating characteristics.

Load Capacity and Operating Conditions

The SKF 6302 bearing family has published basic load ratings of:

Basic Dynamic Load Rating C

The basic dynamic load rating is used in rolling bearing life calculations under dynamic loading conditions.

It does not represent a universal maximum permissible operating load.

Actual bearing life depends on the applied loads, rotational speed, lubrication, contamination and operating conditions.

Basic Static Load Rating C0

The basic static load rating relates to the bearing's resistance to permanent deformation at rolling contacts under static loading conditions.

It should not be interpreted as a universal safe working load.

Rotational Speed

The permissible rotational speed depends on the bearing execution, lubrication and operating conditions.

Because the SKF 6302-Z has a single metal shield, speed data must correspond to the relevant shielded execution.

Reference and limiting speeds are therefore not stated without confirmed values for this exact variant.

Typical Applications of Single Row Deep Groove Ball Bearings

Single row deep groove ball bearings of this type are used in appropriately designed rotating shaft assemblies.

Typical application categories include:

• Mechanical drive systems.

• Bearing housings.

• Rotating machinery assemblies.

• Industrial equipment.

• General mechanical transmission systems.

The single metal shield may be useful where partial protection is required on one side and the other side remains accessible to the lubrication arrangement specified by the equipment design.

These are typical applications of the bearing category, not confirmed OEM applications for the exact SKF 6302-Z part number.

SKF 6302-Z Installation and Maintenance

Clean Installation Conditions

Before installation, clean the shaft, housing and surrounding working area.

Prevent dirt, metal particles and other contaminants from entering the bearing.

Correct Bearing Fits

Select shaft and housing fits according to the operating load and application requirements.

Incorrect fits can affect internal clearance, bearing temperature and service life.

Installation Force

Apply installation force only to the bearing ring being mounted with an interference fit.

Do not transmit mounting force through the rolling elements.

Shield Protection

Avoid deforming or damaging the metal shield during handling and installation.

The shield must not be used as a surface for applying mounting force.

Lubrication

Ensure that the bearing is lubricated according to the application requirements.

The suffix Z alone does not identify a particular grease type or quantity.

The lubrication condition of the specific supplied bearing should be confirmed before installation.

Storage

Store the bearing in its original packaging in a clean, dry environment.

Protect it against moisture, contamination and mechanical damage.

Frequently Asked Questions - SKF 6302-Z

1. What are the dimensions of the SKF 6302-Z bearing?

The SKF 6302-Z has a bore diameter of 15 mm, an outside diameter of 42 mm and a width of 13 mm.

2. What does Z mean in SKF 6302-Z?

The suffix Z indicates a non-contact metal shield on one side of the bearing. The opposite side remains open.

3. Are SKF 6302-Z and SKF 6302-2Z the same bearing?

No. The SKF 6302-Z has one metal shield, while the SKF 6302-2Z has metal shields on both sides. Their nominal mounting dimensions are identical.

4. Does SKF 6302-Z have C3 internal clearance?

The designation 6302-Z does not specify C3 clearance. The standard execution uses normal internal clearance.

5. Does SKF 6302-Z have rubber seals?

No. It features a non-contact metal shield on one side, not a rubber contact seal.

6. Can SKF 6302-Z accommodate axial loads?

Yes. As a deep groove ball bearing, it can accommodate radial loads and axial loads in both directions, within the permissible operating conditions.

7. Is SKF 6302-Z factory lubricated?

The Z suffix alone does not establish the specific factory lubricant or grease quantity. The lubrication condition of the supplied bearing should be confirmed for the exact execution.

8. Can a bearing from another manufacturer replace SKF 6302-Z?

A replacement may be considered if the dimensions, construction, shield configuration, internal clearance and operating specifications are compatible. Matching dimensions of 15x42x13 mm alone do not guarantee interchangeability.

SKF 6302-Z - Key Information

SKF 6302-Z is a single row deep groove ball bearing with nominal dimensions of 15x42x13 mm, belonging to the 63 dimensional series. The suffix Z identifies a non-contact metal shield on one side, while the opposite side remains open. The bearing accommodates radial and axial loads in both directions. Shield configuration, internal clearance and lubrication are important selection factors.

The SKF 6302-Z bearing can be identified by its exact manufacturer designation at simmering.pl, a specialist supplier of industrial bearings and technical spare parts. The company operates a warehouse in Lublin, Poland, offering stock in Poland and worldwide shipping options.