Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Brand	NSK
Series	MR Series Miniature
Material	High Carbon Chrome Steel
Precision Grade	ISO Class 4 (ABEC-7)
Seal Type	ZZ (Metal Shield) or 2RS (Rubber)
Cage Material	Pressed Steel
Country of Origin	Japan
Lubrication	Factory Pre-lubricated Grease
Load Capacity	Radial and Axial
Common Applications	Drones, RC Models, Dental Handpieces

5 reviews

Anonymous

Mar 06, 2026

Rating: 5/5

Reliable for repairs

We use these for repairing miniature motors. Consistent quality across different inner diameter sizes. Fast shipping too.

Anonymous

Mar 05, 2026

Rating: 5/5

Perfect fit

Ordered the 5mm size for a custom gearbox project. Tolerances are tight and fitment was exact. No play whatsoever.

Anonymous

Feb 28, 2026

Rating: 4/5

Good performance

Low noise operation under load. Packaging was secure. Would prefer if bulk discounts were available for larger orders.

Anonymous

Feb 24, 2026

Rating: 5/5

Exceptional Smoothness

These bearings are incredibly smooth. I used the 3mm inner diameter for my racing drone motors and the RPM performance is noticeable.

Anonymous

Feb 13, 2026

Rating: 4/5

Great quality, pricey

Genuine NSK product as described. They work perfectly but are a bit more expensive than generic brands. You pay for precision.

5 FAQ

Q: Do I need to add additional lubrication before use?

A: No, these come factory pre-lubricated with high-speed grease ready for immediate installation.

Q: What is the difference between ZZ and 2RS seals?

A: ZZ offers metal shields for lower friction, while 2RS provides rubber seals for better contamination protection.

Q: Can I return the item if I ordered the wrong inner diameter?

A: Yes, unused items in original packaging can be returned within 30 days according to our return policy.

Q: Is this product compatible with standard 1mm shafts?

A: Yes, please select the variant with 1mm Inner Diameter from the options menu to ensure compatibility.

Q: Are these bearings suitable for continuous high RPM operation?

A: Yes, the MR Series is designed for high-speed applications such as miniature motors and spindles.

Explore your interests

WWI Anrui Motor Deep Groove Ball Bearings 6200, 6201, 6202, 6203, 6204-ZZ 2RZ High-Speed Quiet

$40.00

Domestic Bearing Steel Linear Guide Rail Block MGN12H 9H 7H 15H MGW7C 9C 12C 15CS

$4.50

Automotive Inspection Fixture Standard Parts Round Liner Shaft Bushing Straight Sleeve Threaded Sleeve Guide Bushing Inspection Pin Sleeve In Stock

$3.00

304 Stainless Steel Cross Recessed Indented External Hex Bolts GB29.2 External Hex Screws M3 M4 M5 M6

$1.00

304 Stainless Steel Hex Socket Screw Cup Head Bolt Cylinder Head Extended M2 M2.5 M3 M4 M5 M6 M8 M10mm

$1.43

Real Photo EZO Imported Stainless Steel Bearing 608HZZ 8*22*7mm S608ZZ High Speed

$13.50

SWC Light/Heavy Duty Cross Shaft Universal Coupling, Universal Shaft, Drive Shaft, and Universal Joint

$220.00

T-Shaped Rubber Hexagonal Spider Coupling Elastic Block Polyurethane Buffer Pad Water Pump Shock Absorber Toughened Hex Pad

$5.00

igus JSM Bushing Engineering Plastic Sliding Bearing, Wear-Resistant Self-Lubricating Oil-Free Liner

$3.00

Thickened Flange Nut with Washer, High-Strength Alloy Steel Press Plate Screw Nut M8-M36

$3.40

[M2-M20] Stainless Steel Spring Washer

$0.76

$Rubber Gear Coupling 14J\13J\12J\11J\10J\9J\8J\7J\6J\5J\4J\3J$

Rubber Gear Coupling 14J\13J\12J\11J\10J\9J\8J\7J\6J\5J\4J\3J

$15.00

Sunroom Column Base Steel Casting Embedded Parts 80 100 120 150 Special Square Tube Base Connector

$6.03

Nickel-Plated/Black PB Pan Head Flat Point Self-Tapping Screw, Cross Recessed Small Screw M1-M4

$1.00

Box-Type Shaft Slider Linear Bearing SCS8 10 12 13 16 20 25 30 35 40 50 60UU

$6.40

Maintenance-Free Plastic Linear Bearing Slide Bushing LM1016230450UU (igus Alternative)

$6.36

Non-Standard BFH Aluminum Alloy Bearing Housing with Retaining Ring, Round Flange, Single Bearing Fixed Mount BARA BFF23

$16.90

Daiwa Baitcasting Reel Parts, Coaster, Large/Small Black/Red Spider, Sea Spider, Elite One-Way Bearing Bushing

$20.00

Imported Bearing Model Assortment: 6000RS, 6001 High-Speed, 6002 Motor, 6003, 6004, 6005, 6006

$2.50

25mm Round Stainless Steel Pipe Connector, Clothes Drying Rack Accessory, Display Stand Fastener, Shelf Fixing Two-Way Joint

$1.20

Miniature Ball Bearings with Shoulder Flange Catalog - Inner Diameters 2 3 4 5 6 7 8 9 10

$13.00

L-Type Jaw Coupling, Spider Coupling, High Torque, Black Oxide Finish, Free Shipping from Manufacturer

$7.00

Japan EKI LM3 4 5 6 8 10 12 16 20 25 30 35 40 50UU Imported Linear Bearing

$10.50

Japanese Precision Imported NSK Linear Bearing LM 3 4 5 6 8 10 12 13 16 20 25 30 UU

$6.50

304 Stainless Steel Countersunk Hex Socket Screw and Nut Set with Flat and Spring Washers

$1.29

Grade 12.9 External Hex Screws and Nuts Complete Set High-Strength Bolts with Flat and Spring Washers M6-M24

$9.03

304 Stainless Steel Nuts, Caps, Flat Washers, and Spring Washers - Sizes M3, M4, M5, M6, M8, M10, M12, M16, M18, M20, M22, M24, M30

$1.00

C&U Bearings for Automotive Alternators - SA608, 6201, 6202, 6302, 6303, 6304/2RSM/C3

$3.50

Plastic Hammer Head Nut M8 M10 Furniture Connector Embedded Fastener Hardware Accessories

$5.11

Swing Cylinder Front Bucket Bushing 95*110*80 with TOM Oil Bronze Bushing for Excavator and Large Loader Liners

$90.00

304 Stainless Steel Rivet Nuts, Aluminum Flat Head Rivnuts, Countersunk Rivet Nuts Assortment M3 M4 M5 M6 M8 M10

$0.91

Stainless Steel Angle Bracket 90-Degree L-Shaped Fixator Corner Iron Right-Angle Triangle Support Shelf Bracket Hardware Connector Plate T

$2.66

Aluminum Alloy Socket Head Cap Screw, Cup Head Fastener M4-M10mm

$7.00

Galvanized High-Strength Imperial Hex Flange Nuts UNC Grade 8, Anti-Slip Locking; UNF Fine Thread Nuts

$2.20

M3-M20 PVC External Hex Head Screws, Gray Insulated Bolts, Acid and Alkali Resistant Plastic Fasteners

$2.64

NSK High-Speed Imported Micro Bearings 605 606 607 608 609 ZZ Z1 Z2 Z3 Z4

$3.00

High-Precision Hardened Steel Bushing/Guide Sleeve: ID 18/19/20mm, Custom Non-Standard Bearing Steel Inner Rings Assortment

$1.77

Phone Gimbal Shim, Screw Plate, Heavy-Duty Clamp Shim, Internal 1/4" Screw Pad, Nut Washer, Anti-Slip Fixation Pad

$2.80

304 Stainless Steel Extended Cylindrical Sleeve Shaft Bushing Non-Threaded Spacer Hollow Liner M2 M3 M4 M5

$1.66

Guwanji Zinc-Plated Iron Cross Countersunk Screw, Nut, Flat Head Bolt, and Spring Washer Assortment M2-M12

$1.82