Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material | 304 Stainless Steel |
| Outer Diameter | 4 mm |
| Available Bore Sizes | 2, 3, 5, 6, 7, 8, 9, 10, 12 mm |
| Width | 1.2 mm |
| Seal Type | ZZ Metal Shield |
| Precision Class | ABEC-7 |
| Dynamic Load Rating | 120 N |
| Maximum Speed | 30,000 RPM |
| Lubrication | Pre-greased |
| Package Quantity | 10 Pieces per Pack |
Anonymous
Apr 24, 2026
Rating: 3/5
Packaging needs improvement
The bearings themselves work well, but two arrived slightly dusty due to poor sealing in the bag. Cleaned them and they work fine.
Anonymous
Apr 16, 2026
Rating: 5/5
Great value bulk pack
Exactly what I needed for my robotics project. Consistent sizing across all 10 pieces in the pack.
Anonymous
Apr 13, 2026
Rating: 5/5
Silent operation
Replaced the noisy bearings in my desk fan with these. You can barely hear it now. Stainless steel is a nice touch for durability.
Anonymous
Apr 06, 2026
Rating: 4/5
Good quality, tight fit
Quality seems high for the price. The 3mm bore was a bit tight on my shaft initially but loosened up after use.
Anonymous
Feb 04, 2026
Rating: 5/5
Perfect for micro drones
These bearings are incredibly smooth. Used them on my 65mm whoop frame and the motors spin up instantly. Very quiet operation too.
Q: What grease is used inside?
A: They come pre-lubricated with standard lightweight bearing grease suitable for general use.
Q: Are these suitable for high RPM applications?
A: Yes, they are rated for up to 30,000 RPM depending on lubrication and load.
Q: Do you sell a 4mm bore version?
A: This specific listing is for 4mm OD. Please check our other listings for different outer diameter specifications.
Q: Can these be washed with water?
A: Being stainless steel, they resist rust, but we recommend drying them thoroughly after exposure to moisture.
Q: Is the 2mm bore true to size?
A: Yes, all bore sizes are machined to standard tolerance specifications.
Commercial Dumpling & Bun Filling Machine – Automatic Stainless Steel Vegetable Chopper
$4,400.00
HVAC Fan VFD Control Cabinet with Power Frequency to Variable Frequency Conversion
$1,238.00
Export Quality Original Bathroom Paint Pens, Yellow and Green (2-Pack), Draw on Tiles and Glass
$4.93
Imported Automotive Transmission Differential Bearing B39-4 580704A
$338.00
Fully Automatic Carbon Steel and Stainless Steel Filter, Self-Cleaning Vertical Filter, Automatic Blowdown Filter
$37,500.00
Sheepskin Rattle for Babies 0-3 Years - Chewable Intangible Cultural Heritage Handmade Toy with Solid Wood and Brass Shaker Stick, Newborn Gift Box
$12.78
Swiss ITI Dental Implant / Korean Imported Dentium Implant Package with Crown - Shanghai Hospital
$3,980.00
Yandi Retainer Storage Case - Double-Layer Drain & Soak Box for Invisible Aligners and Orthodontic Cleaning
$30.50
Leaf-Shaped Template Stamp for Kids - Transparent Silicone DIY Mold with Sponge for Maple Leaf Rubbing and Painting
$4.93
High-Speed Internal Clamping Double Diaphragm Coupling High Torque Servo Motor Leadscrew Module Elastic Coupler
$367.30
Eye-Care Journaling Highlighters for Students - Colorful Markers for Note-Taking and Key Points
$3.02
Natural Stone Abacus Beads with Large Holes 5*10mm White Crystal Rose Crystal Flat Beads Jewelry Accessories Semi-Precious Stones
$1.50
Heavy-Duty Lifting Chain with Shackles at Both Ends - Manganese Steel Hoist for Pipes, Rebar, and Stones
$72.00
Industrial Large Roll Oil-Absorbent Paper, Jumbo Lint-Free Wiping Rolls, Cleaning Paper, Wholesale Industrial Jumbo Rolls
$150.00
5-Inch Flocked Scouring Pad, Stainless Steel Rust Removal and Polishing Disc, Circular Brush Cloth with Backed Flocking for Polishing
$25.00
High-Temperature Fire-Resistant Cotton Incense Burner Mat, Flame-Retardant Pad for Stick Incense Boxes and Aromatherapy Burners, Heat Insulation for Burning Incense
$2.98
80 Pairs Zhuji Ankle Socks, Solid Color All-Season Trendy Student Casual Sports Boat Socks, Disposable Short Socks
$9.14
Smart Toilet Storage Rack for Bathroom, Multi-Tier Floor-Standing Organizer with Waterproof Tissue Holder
$273.00
Yihuashu Calligraphy Felt Mat - Thickened Grid Cloth for Student Practice, Brush Writing Pad
$1.98
![Xiankan Yunshu [Danran] Ceramic Brush Washer - Hand-Painted Elegant Lily Design under Glaze for Calligraphy Supplies](https://www.gosteppe.com/cache/small/product/269142/legacy-main-f8acbab3a83eee11ff108718.webp)
Xiankan Yunshu [Danran] Ceramic Brush Washer - Hand-Painted Elegant Lily Design under Glaze for Calligraphy Supplies
$32.90
Chunfei Grocery Store Commuter Hard Fork Low-Step Mountain Bike for Road, City, Suburb, School, and Outings
$2,224.64
Zhang Xiaofeng 'Fu Lu' Hotpot Inkstone Set – Covered Ceramic Ink Well for Calligraphy and Chinese Painting
$38.00
Invisalign Orthodontic Retainer Case, Portable Storage and Cleaning Box for Aligners and Dentures
$12.30
Natural 7A Lavender Loose Beads Single Round Bead DIY Amethyst Spacer Beads Jewelry Making Semi-Finished Accessories
$0.88
Paint Brush Cleaner - Mini Toilet Style Rinser for Watercolor and Gouache, Art Supply with Circulating Water System
$16.90
Traditional Wooden Rattle Drum with Sheepskin Head for Early Education, Visual Tracking and Hearing Training for Newborn Boys and Girls
$10.80
Car Tire Stone Removal Hook, Stainless Steel Multi-Function Tool for Cleaning Pebbles from Tires
$6.21
Factory Direct Mining Round Link Chains - High Cost-Performance Lifting Chains for Mining Applications
$153.00
Hangzhou Stomatological Hospital Dental Implant Initial Consultation Package – CT Scan, Missing Tooth Exam, and Custom Implant Plan Design
$1.00
Rockschool Acoustic Guitar Method Book (Chinese Edition) – Folk & Rock Guitar Grading Curriculum for Schools
$145.00
![[M2-M20] Stainless Steel Spring Washer](https://www.gosteppe.com/cache/medium/product/16306/legacy-main-ef3d2dba3bde669d48e6cca2.webp)
