Steel Bearing Ball 6.350 mm - 100 pcs.

Technical Specifications

The dimension 6.350 mm identifies the nominal diameter. Three decimal places do not automatically establish a manufacturing tolerance of 0.001 mm.

Product Designation and Identification

The designation identifies the rolling element type, material, and nominal diameter, but does not specify the exact steel grade, hardness, or precision class.

Construction and Operating Principle

Steel Bearing Ball 6.350 mm has a spherical geometry that enables rolling contact between appropriately designed mating surfaces.

In ball bearings, rolling elements transmit loads between the inner and outer ring raceways while allowing relative rotational movement.

The direction and magnitude of transmitted loads depend on bearing design, raceway geometry, and operating conditions.

The technical performance of a bearing ball depends on:

• Actual diameter and dimensional tolerance.

• Sphericity and geometric accuracy.

• Surface roughness and finish.

• Steel grade and mechanical properties.

• Hardness and wear resistance.

• Surface condition.

• Operating loads and lubrication.

Identical nominal diameters do not automatically guarantee complete interchangeability between bearing balls.

Steel Bearing Ball 6.350 mm vs 1/4 Inch

The nominal diameter of 6.350 mm is exactly equivalent to 1/4 inch.

These dimensions are nominally identical.

However, this does not automatically establish identical material specifications, hardness, precision grades, or manufacturing tolerances.

Steel Bearing Ball 6.350 mm vs 6.000 mm

Bearing balls measuring 6.350 mm and 6.000 mm are not direct dimensional substitutes.

The difference may affect bearing clearance, contact geometry, and load distribution.

Material and Manufacturing Accuracy

The product is identified as a steel bearing ball. However, the exact steel grade has not been specified.

Depending on the application, bearing balls may be manufactured from bearing steel, stainless steel, or other steel grades with suitable mechanical properties.

Specific grades such as 100Cr6 or AISI 52100 must not be assigned without supporting product documentation.

Similarly, a nominal diameter of 6.350 mm does not establish a precision grade such as G10, G20, G40, or G100.

For precision applications, verify:

• Diameter tolerance.

• Deviation from spherical form.

• Surface roughness.

• Steel grade.

• Hardness.

• Dimensional consistency within the supplied batch.

The required characteristics depend on the mechanical assembly and its operating conditions.

Bearing Selection and Interchangeability

Before purchasing Steel Bearing Ball 6.350 mm, verify the complete technical requirements of the application.

Important selection criteria include:

• Nominal diameter: 6.350 mm (1/4 inch).

• Diameter tolerance: Compliance with the required specification.

• Steel grade: Compatibility with operating conditions.

• Precision grade: Appropriate dimensional and geometric accuracy.

• Hardness: Suitability for contact loads and mating surfaces.

• Surface quality: Absence of scratches, dents, corrosion, and other defects.

• Operating loads: Compatibility with the mechanical assembly.

• Operating temperature: Suitability for the application.

• Lubrication: Appropriate for the bearing or mechanism.

When replacing balls in an existing bearing, assess the condition of the raceways, cage, and remaining rolling elements.

Replacing an individual ball without checking the complete assembly may cause uneven load distribution.

Applications of Steel Bearing Ball 6.350 mm

Steel bearing balls with a nominal diameter of 6.350 mm may be used in mechanical assemblies specifically designed for spherical rolling elements of this size.

Typical application categories include:

• Ball bearings designed for 1/4-inch rolling elements.

• Industrial rolling mechanisms.

• Mechanical guiding systems.

• Ball-based positioning mechanisms.

• Other engineered assemblies incorporating steel spherical elements.

These are general application categories based on the geometry and function of bearing balls.

They do not establish confirmed compatibility with a particular bearing model, machine, gearbox, or OEM assembly.

Suitability must be verified against the technical requirements of the application.

Alternative Designations and Reference Formats

Natural reference formats include:

• Steel Bearing Ball 6.350 mm

• Steel Ball 6.35 mm

• Steel Bearing Ball 1/4 inch

• 1/4" Steel Bearing Ball

• Steel Bearing Ball 6.350 mm - 100 pcs.

These are alternative descriptive and dimensional formats, not confirmed manufacturer or OEM part numbers.

No unverified manufacturer references, steel grades, or precision classifications have been assigned.

Handling, Installation and Storage

Before installation, inspect the bearing ball and all mating surfaces for contamination, damage, or corrosion.

Do not use balls with visible dents, scratches, deformation, or surface defects.

Protect the rolling elements against moisture, abrasive particles, and mechanical damage.

When assembling a bearing, ensure that all balls meet the required dimensional and material specifications.

Use the lubricant recommended for the complete mechanical assembly.

Store the balls in clean, dry conditions, preferably in their original packaging.

Frequently Asked Questions - FAQ

What is the diameter of Steel Bearing Ball 6.350 mm?

The nominal diameter is 6.350 mm, exactly equivalent to 1/4 inch.

Is a 6.350 mm bearing ball the same as a 1/4-inch ball?

Yes, in terms of nominal diameter. However, the material, hardness, precision grade, and dimensional tolerance must also be verified.

Can a 6.350 mm ball replace a 6.000 mm ball?

Not automatically. The nominal diameter difference is 0.350 mm.

What material is the bearing ball made from?

The ball is made of steel. The exact steel grade requires confirmation against the product specification.

Does 6.350 mm mean the ball is accurate to 0.001 mm?

No. The number of decimal places in the nominal dimension does not establish the manufacturing tolerance.

Does the ball have a specified precision grade?

No precision grade has been provided. It must be verified before using the ball in a precision mechanical assembly.

Can this ball be used to repair an existing bearing?

Only if its diameter, material, hardness, precision grade, and other characteristics match the bearing requirements.

How many steel bearing balls are included in one package?

Each package contains 100 steel bearing balls with a nominal diameter of 6.350 mm.

Steel Bearing Ball 6.350 mm - Key Technical Information

Steel Bearing Ball 6.350 mm is a spherical rolling element with a nominal diameter of 1/4 inch, supplied in packages of 100 pieces. It is intended for compatible ball bearings and mechanical rolling assemblies. It is not dimensionally identical to a 6.000 mm ball. Correct selection requires verification of steel grade, precision class, hardness, and dimensional tolerance.

Steel Bearing Balls at simmering.pl

Steel bearing balls, rolling bearings, and industrial mechanical components are available through simmering.pl, a specialist B2B trading platform serving industrial companies, engineers, maintenance departments, and technical purchasing teams.

Our warehouse and order processing facilities are located in Lublin, Poland. We provide worldwide shipping from stock in Poland.

Product identification and selection assistance is available based on technical dimensions and application requirements.