Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Brand	HRB (Harbin)
Product Series	623, 624, 625, 626, 627, 628, 629
Material	Chrome Steel (GCr15)
Seal Type	2Z (Metal) or 2RZ (Rubber)
Precision Grade	P0 (ABEC-1)
Inner Diameter	3mm to 9mm (Varies by Model)
Outer Diameter	10mm to 24mm (Varies by Model)
Width	5mm to 8mm (Varies by Model)
Lubrication	Pre-lubricated with Grease
Origin	China

5 reviews

Anonymous

Apr 14, 2026

Rating: 5/5

Great for hobby projects

Bought the 625 series. Fit perfectly in my RC car wheels. No play or grinding.

Anonymous

Apr 12, 2026

Rating: 5/5

Perfect for 3D Printer Upgrade

Smooth rotation and genuine feel. Used them for my extruder upgrade and the noise reduced significantly.

Anonymous

Apr 09, 2026

Rating: 5/5

Genuine HRB product

Verified authentic. Low noise and high durability for motor mounts. Will buy again.

Anonymous

Mar 31, 2026

Rating: 4/5

Solid bearings

Work as expected. Packaging was a bit loose but no damage to the items.

Anonymous

Mar 19, 2026

Rating: 4/5

Good quality, slow shipping

Bearings are excellent quality, but took a while to arrive. Worth the wait for genuine HRB.

5 FAQ

Q: Are these authentic HRB bearings?

A: Yes, all products come directly from the official flagship store.

Q: What is the difference between 2Z and 2RZ?

A: 2Z has metal shields, 2RZ has rubber seals for better dust protection.

Q: Can these handle high speeds?

A: Yes, suitable for typical motor RPMs found in drones and printers.

Q: Do you offer bulk discounts?

A: Please contact customer support for orders over 100 units.

Q: Is the grease food safe?

A: No, this is industrial lubrication not intended for food contact.

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

Micro Flanged Mini Bearing with Retainer Ring ID 2 Bore 3 4 5 6 7 8 9 10 12 15 17 20

$8.00

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

Harbin Micro Small Bearing Complete Model Range, Inner Diameter 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, Mini Bearing

$9.00

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