Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand | ZCD / Jiuyuan |
| Model Series | 623, 624, 625, 626, 627, 628, 629 |
| Material | Chrome Steel GCr15 |
| Seal Type | ZZ (Metal Shield) / DDU (Rubber Seal) |
| Precision Rating | ABEC-1 / ISO P0 |
| Cage Material | Steel Cage |
| Lubrication | Pre-lubricated with Grease |
| Country of Origin | Imported (Japan Spec) |
| Package Quantity | 10 Pieces per Pack |
| Warranty | 6 Months Manufacturer Warranty |
Anonymous
Apr 08, 2026
Rating: 5/5
Reliable supplier
This is my third order. Consistency is key for my machinery projects and these deliver every time.
Anonymous
Apr 06, 2026
Rating: 5/5
Excellent quality
Genuine feel and weight. The ZZ shields are secure. Highly recommend for hobbyist robotics.
Anonymous
Apr 04, 2026
Rating: 5/5
Perfect for drone motors
These bearings are smooth and handle high RPMs well. I used them on my racing drone and noticed less friction.
Anonymous
Apr 01, 2026
Rating: 5/5
Smooth operation
Very quiet operation compared to my old bearings. Shipping was fast and packaging protected the items well.
Anonymous
Mar 11, 2026
Rating: 4/5
Good value for money
Quality is decent for the price. One bearing was slightly tight out of the box but loosened up after use.
Q: What is the maximum RPM for the 624 model?
A: It varies by load, but they are generally suitable for high-speed applications up to 30,000 RPM.
Q: Are these compatible with standard 626 mounts?
A: Yes, these bearings follow standard ISO dimensions for compatibility with standard mounts.
Q: Is the seal metal or rubber on the DDU version?
A: The DDU version features non-contact rubber seals for better dust and moisture protection.
Q: Do these come pre-lubricated?
A: Yes, all bearings come pre-lubricated with standard grease ready for installation.
Q: Can I mix sizes in one order?
A: Please select specific sizes per SKU, but you can order multiple SKUs in one checkout.
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
Commercial Food Warmer Cabinet, Small Heating Thermostat Display Counter for French Fries, Egg Tarts, Enlarged Chestnuts, and Fried Chicken
$334.00
Natural Green Peridot Crushed Stone, Small Raw Particles for Demagnetizing Energy, Aquarium Landscaping DIY Accessories
$8.50
3M 5-Inch Flocked Abrasive Disc with Hook-and-Loop Backing – Polishing Pad for Angle Grinders, Rust Removal & Cleaning
$3.20
Children DIY Art Rubbing Stick Round Painting Sponge Brush Graffiti Stamp Tool Kindergarten Rubbing Materials
$2.61
![[M2-M20] Stainless Steel Spring Washer](https://www.gosteppe.com/cache/medium/product/16306/legacy-main-ef3d2dba3bde669d48e6cca2.webp)
