3mm to 10mm bore
Metric Miniature Series
MR and 600 series metric miniature ball bearings.
Enquire NowMiniature Bearings
Small bore deep groove ball bearings for instruments, small motors, appliances and precision equipment, stocked from 3mm bore upward in open, shielded and sealed variants.
Product Range
Products We Stock
Miniature and extra small bore bearings across the common inch and metric sizes.
1/8 inch to 3/8 inch bore
Inch Miniature Series
R-series inch bearings common in imported small equipment.
Enquire Now 3mm to 10mm bore
Flanged Variants
Integrated outer flange for simplified housing location.
Enquire Now Select sizes
Stainless Steel Variants
Corrosion-resistant option for washdown and instrument use.
Enquire Now All sizes
Sealed 2RS/ZZ Variants
Pre-greased and sealed for maintenance-free small equipment.
Enquire NowSpecifications
Typical Specifications
Representative ranges across the stocked miniature bearing range.
Standard Reference
ISO 15 boundary dimensions
- Bore diameter
- 3 mm to 10 mm metric
- Inch bore range
- 1/8 to 3/8 inch
- Material
- Chrome steel or stainless
- Sealing
- Open, ZZ, 2RS
- Flanged option
- Available in most sizes
- Max speed
- High relative speed rating for size
- Temperature range
- -20 C to +100 C
- Precision class
- ABEC 1, ABEC 5 on request
Our Brands
Brands For
This Range
Stocked across our general bearing brand range.
Buying Guide
Specifying Miniature Bearings
What to confirm before ordering.
Step 01
Measure bore precisely
At this size range, fractions of a millimeter matter, use a caliper rather than estimating from the old part.
Step 02
Confirm metric or inch
Metric and inch miniature bearings are visually similar but not interchangeable, check the stamped size code.
Step 03
Consider stainless for corrosive environments
Standard chrome steel will corrode quickly in washdown or high humidity conditions.
Standards
Standards and Quality
Dimensional standards for this bearing family.
ISO 15
Boundary Dimensions
Standard interchangeable dimensions for metric sizes.
ABEC
Precision Classes
ABEC 1 through ABEC 7 precision grading available on request.
Corrosion Resistant
Stainless Options
440C stainless steel variants for corrosive or washdown environments.
Traceable
Batch Marked
Packaging marked with brand and batch for verification.
Applications
Common Applications
Typical mounting points for this bearing type.
01
Small DC Motors
Drive and non-drive end support in compact motors.
02
Cooling Fans
Electronics and appliance fan shaft bearings.
03
RC and Drone Mechanisms
Lightweight high speed rotating parts.
04
Measuring Instruments
Precision low-friction rotating mechanisms.
05
Kitchen Appliances
Mixer, grinder and small motor bearings.
06
Sewing Machines
Small precision shaft support.
Industries
Industries We Serve
Where small size and precision matter most.
Instrument Manufacturing
Precision small motors and measurement equipment.
Appliance Manufacturing
Small motors in domestic and commercial appliances.
Toy and Model Manufacturing
RC vehicles, drones and small mechanical models.
Electronics Assembly
Cooling fans and small actuator mechanisms.
FAQ
Frequently Asked Questions
Common questions about miniature bearings, answered by our counter team.
How small a bearing do you stock?
Down to 3mm bore in the metric range and 1/8 inch in the inch range, smaller specialty sizes can be sourced against order.
Do you have flanged miniature bearings?
Yes, flanged variants are stocked in most common sizes, useful where the bearing needs to locate directly against a housing face.
Can I get stainless steel miniature bearings?
Yes, for corrosive or washdown environments, ask for the stainless variant when ordering.
Need a miniature bearing priced?
Send the size or old part on WhatsApp for same-day confirmation.
Contact Us