Miniature Deep Groove Ball Bearing

MR62ZZ Miniature Ball Bearing | 2×6×2.5 mm | Double Shielded | In Stock

2 mm Bore × 6 mm OD × 2.5 mm Width · Miniature Deep Groove Ball Bearing · Double Metal Shielded · In Stock · Compatibility Verification Available

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Send us your part number, dimensions, photo, or sample — we'll help confirm the correct replacement before you order.

When You Need This Bearing, You're Usually Confirming a Very Specific Fit

The MR62ZZ is a miniature deep groove ball bearing with a 2 mm bore, 6 mm outside diameter, and 2.5 mm width.

At this size, even a small dimensional difference can matter. The correct replacement depends not only on the bore, but also on the outer diameter, width, shield type, material, and the requirements of the equipment.

If you're replacing an existing MR62ZZ or another 2×6×2.5 mm miniature bearing, we recommend confirming the complete specification before ordering.

Technical Specifications

The 2 × 6 × 2.5 mm boundary dimensions are confirmed for MR62ZZ by NSK's official product data.

What This Bearing Is

The MR62ZZ is a miniature single-row deep groove ball bearing designed for compact rotating assemblies.

The bearing measures:
2 mm bore × 6 mm outside diameter × 2.5 mm width

The ZZ designation indicates double metal shields. The shields help reduce the entry of external contaminants while retaining the internal lubricant.

NSK's published MR62ZZ specifications list 6 balls with a 1.2 mm ball diameter. This information is provided as a reference for the MR62ZZ designation and is not presented as an EKB inspection measurement.

Key Features

• Compact 2×6×2.5 mm Size
  The small envelope makes MR62ZZ suitable for compact mechanisms where installation space is limited.

• Double Metal Shields
  The ZZ configuration helps protect the internal bearing area from light external contamination while retaining lubricant.

• Stainless Steel or Chrome Steel Options
  Material selection can be matched to the application. Stainless steel is useful where corrosion resistance is important, while chrome steel is commonly used for general bearing applications.

• Miniature Deep Groove Design
  The deep groove raceway supports typical radial bearing applications within the bearing's operating limits.

Where This Bearing Is Used

MR62ZZ can be considered for applications such as:

• Micro motors and compact drive systems

• RC and hobby equipment

• Small instruments and precision mechanisms

• Optical and electronic equipment

• Miniature automation components

• Small gear and rotating assemblies

The exact suitability depends on load, speed, temperature, shaft and housing fit, lubrication, and operating environment.

See our Miniature Ball Bearings category for other miniature bearing sizes and configurations.

Need to Match an Existing MR62ZZ Bearing?

For miniature bearings, the difference between similar-looking models can be only a fraction of a millimeter.

A 2 mm bore alone does not confirm compatibility.

Before ordering, check:
Bore → Outer Diameter → Width → Shield / Seal → Material → Application

Also confirm whether your original bearing is:
MR62ZZ · another 2×6×2.5 mm bearing · stainless steel · chrome steel · shielded · sealed

Not sure which bearing you need? See our Bearing Identification Service.

Send us any of the following:

• Existing bearing number

• Bore, OD, and width

• Bearing photo

• Drawing

• Physical sample

• Equipment model

We'll check the dimensions and configuration before shipment.

Don't have all the information? Send us whatever you have.
A photo, partial dimensions, or the original bearing number may be enough for us to start the identification.

MR62ZZ Cross-Reference

MR62ZZ is a widely used miniature bearing designation, and similar 2×6×2.5 mm bearings may appear under different manufacturer or supplier designations.

Because naming can vary between manufacturers, cross-reference information should be treated as an identification aid rather than an automatic guarantee of interchangeability.

Always confirm the complete dimensions, shielding, material, precision, and application requirements before replacement.

MR62ZZ Material Options

Chrome Steel
Chrome steel is commonly used for general miniature bearing applications where conventional bearing-steel properties are required.

Stainless Steel
Stainless steel can be considered where corrosion resistance is an important requirement, such as humid or corrosion-sensitive environments.

Material selection should be based on the actual application rather than the model number alone.

For other stainless steel bearing options, see our Stainless Steel Bearings category.

Why Buy From EKB?

For miniature bearings, a part number may look simple, but the complete configuration still matters.

EKB helps customers check:
Dimensions → Configuration → Material → Application → Availability

We support difficult-to-source miniature and replacement bearing requirements and help customers confirm the correct specification before shipment.

About EKB

EKB Bearing (Hebei Shuanghejincheng Bearing Co., Ltd.) operates an 18,000 m² factory with 13 automated production lines and 42 high-precision testing units, with products exported to 66 countries.

We support customers with miniature, inch-size, special-dimension, and replacement bearing requirements.

Frequently Asked Questions

What are the dimensions of MR62ZZ?
The MR62ZZ dimensions are: 2 mm bore × 6 mm outside diameter × 2.5 mm width.
These dimensions are listed in NSK's official MR62ZZ product data.

What does ZZ mean on MR62ZZ?
ZZ indicates double metal shields.
The shields help reduce the entry of external contaminants while retaining the internal lubricant. NSK also identifies ZZ as shields on both sides for MR62ZZ.

How many balls does MR62ZZ have?
NSK's published MR62ZZ specification lists 6 balls, with a ball diameter of 1.2 mm. This is manufacturer reference data for the MR62ZZ designation.

Is MR62ZZ stainless steel?
This EKB version is available in stainless steel and chrome steel configurations.
The required material should be confirmed according to the application.

What is the difference between MR62ZZ and other 2×6×2.5 mm bearings?
Several miniature bearing designations may share the same basic dimensions.
The complete specification should be checked, including material, shield or seal type, precision, clearance, and application requirements.

Can MR62ZZ replace another 2×6×2.5 mm bearing?
It may be possible when the complete specification matches.
Do not rely on dimensions alone when the original bearing has a different material, seal, shield, clearance, precision, or application requirement.

What is the reference speed of MR62ZZ?
NSK lists a grease-lubricated reference speed of 75,000 min⁻¹ for MR62ZZ. Actual allowable speed depends on the bearing configuration, lubrication, load, temperature, and operating conditions.

What if I only have the old bearing?
Send us a photo, the dimensions you can measure, the original marking, or the physical sample.
You don't need to know the exact replacement model before contacting us.

Related Miniature Bearings

Looking for other compact bearing sizes? Check out:

• MR115-2RS Miniature Ball Bearing

• SMR63ZZ Stainless Steel Miniature Ball Bearing

Need to Confirm MR62ZZ?

Send us: Part Number · Dimensions · Photo · Drawing · Sample
We'll confirm: Size · Configuration · Material · Availability
Before you place the order.

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