Description
Reviews
| Brand | - |
| Category | Root / Hardware & Tools |
| Origin | - |
| Material | High-Carbon Chrome Steel (GCr15) |
| Inner Diameter Range | 1.5mm to 12mm |
| Precision Rating | ABEC-7 / P4 |
| Seal Type | ZZ (Metal Shield) or 2RS (Rubber Seal) |
| Cage Material | Steel or Nylon |
| Lubrication | Pre-lubricated with Low-Noise Grease |
| Max Speed | Up to 30,000 RPM (depending on size) |
| Origin | Imported |
| Application | Drones, RC Cars, Dental Handpieces, Spindles |
| Package Contents | 10 Pieces per Pack (Mixed Sizes Available) |
Anonymous
Mar 24, 2026
Rating: 5/5
Perfect for FPV Drone Motors
These micro bearings are exactly what I needed for my custom drone build. They spin incredibly smoothly and handle high RPMs without any noticeable heat buildup. The tolerances seem very tight.
Anonymous
Mar 22, 2026
Rating: 5/5
Precise dimensions
Measured several units with calipers, and the inner/outer diameters are spot on. No wobble detected. Will be ordering more for our prototype assembly line.
Anonymous
Mar 11, 2026
Rating: 4/5
Great performance for the price
Compared to branded options, these offer 90% of the performance at half the cost. They hold up well under stress. Just make sure to clean them before installation if they sat in storage.
Anonymous
Mar 08, 2026
Rating: 5/5
Essential for small motor repairs
I use these daily for repairing small electric motors and dental tools. The consistency across the batch is impressive. The rubber seals keep dust out effectively.
Anonymous
Mar 03, 2026
Rating: 5/5
Smooth operation
Used these for a kinetic sculpture project. The silence and smoothness of rotation are outstanding. Highly recommend for any precision mechanical project.
Anonymous
Mar 01, 2026
Rating: 4/5
Good quality, fast shipping
Bought the 3mm and 5mm sets for my RC car upgrades. They fit perfectly and reduced the friction significantly. One bearing felt slightly stiffer than the others, but overall a great value.
Q: Are these bearings suitable for underwater applications?
A: While the 2RS rubber-sealed versions offer some protection against moisture, these are not specifically designed for continuous submerged operation. For underwater use, we recommend applying additional corrosion-resistant lubricant.
Q: Can I remove the shields to clean and re-lubricate them?
A: Yes, the ZZ metal shields can be carefully pried off for cleaning and re-lubrication. However, the 2RS rubber seals are generally non-removable without damage. Proceed with caution to avoid bending the shields.
Q: Do you sell these in bulk quantities for manufacturing?
A: Yes, we offer bulk pricing for orders over 100 packs. Please contact our sales department directly through the 'Contact Seller' button for a custom quote.
Q: What is the exact outer diameter for the 5mm inner diameter model?
A: For the standard 5mm inner diameter micro bearing (model 685), the outer diameter is typically 11mm with a width of 5mm. Please check the specific sub-model selection for variations.
Q: What is the maximum temperature these bearings can withstand?
A: Standard grease lubrication allows for operating temperatures up to 120°C (248°F). For higher temperature environments, specialized high-temp grease would be required.
Sketch Blending Stump Set for Art Students - Highlight Detail Shadow Tool Kit with Replacement Sponge Heads for Beginners
$9.00
Changyiyou Outdoor Large-Capacity Wheeled Duffel Bag - Thickened Storage Backpack with Wheels for Camping Gear and Travel
$109.00
Lightweight Waterproof Dry Bag for River Trekking and Rafting – Travel Storage for Clothes, Shoes, Socks with Moisture-Proof Buckle, Roll-Top Carry Design
$15.80
Tupai 3D Self-Adhesive Wall Stickers, Custom Acrylic Logo Advertising Letters for Signage, Background Walls, and Image Wall Decor
$8.50
Durable Replacement DEUBLIN 525/357 Water Inlet/Outlet Rotary Union for Curved Surface Printing and Cup Printing Machines
$300.00
Detachable Large Water Barrel Rack for Mineral and Purified Water, Office Bottled Water Storage Stand with Wheels
$136.00
Tea Packaging Gift Box - Empty Ceramic Tea Canister for Longjing, Green Tea, White Tea, Ripe Pu'er, Universal Packaging
$68.00
Ruke Floating Skimmer Machine for Sewage Treatment Plant Biochemical Tanks
$12,064.00
Car Tire Stone Removal Tool Rock Picker Anti-Explosion Hook Stone Cleaner Car Hook Window Breaker Hammer
$2.07
Negotiable Price: Siemens 10mA Leakage Circuit Breaker, 2P 16A Ground Fault Protection
$130.00
Jingdezhen Ceramic Brush Washer Set, Blue and White Porcelain Calligraphy Ink Well and Pen Holder
$14.99
Beishanlang Outdoor Camping Foldable Lighting Stand Aluminum Alloy Portable Lamp Pole Bracket Camp Light Night Fishing Light
$49.00
Mobile Gas Cylinder Stand with Wheels - Plastic Base Tray for Propane Tanks and Water Buckets
$10.65
Fast Grocery Shopping Cart, Foldable Portable Home Trolley with Stair-Climbing Wheels, Lightweight Hand Truck for Seniors
$299.06
Car Tire Stone Hook - Multi-Function Rust-Resistant Tool for Removing Stones from Tires
$8.33
Zunjue 100% Cotton Watercolor Paper Mini Portable Pocket Sketchbook for Travel, 300g Cold Press Thickened Art Notebook for Gouache, Oil Pastel, and Colored Pencil
$3.32
Large Capacity Waterproof Phone Pouch for Outdoor Diving, Rafting, and Swimming - Touchscreen Compatible Waist Bag with Storage
$2.50
Custom Office Meeting Door Sign – Switchable 'Do Not Disturb' & 'Please Knock' Plate
$5.00
Multi-Function Over-Toilet Storage Rack – No-Drill, Multi-Tier Floor Stand for Bathroom Laundry Gap
$28.48
External Round Thread Welding Turning Tool, Threading Tool, Zhuzhou Alloy YT15 YG8 YW2 Lathe Tools, 20*25*30 Square
$17.00
Traditional Children's Rattle Drum, Classic Baby Hand-Shake Instrument, Plastic Toy for Newborn Boys and Girls
$2.90
Ultra-Soft Dual-Tip Blending Stump Set for Oil Pastels & Sketching – Washable Smudge Tools for Shading and Detail Work
$3.39
Chengzhutang Foldable Water Bucket Chinese Painting Brush Washer Gouache Watercolor Paint Cleaning Pail Art Student Brush Basin Collapsible Cup Oil Painting Color Pigment Bucket
$9.80
Meiao Dental Nobel Biocare Import Package - Swedish Dental Implants, Crowns, Abutments, and Dentures
$15,888.00
Outdoor Waterproof ABS Plastic Case - Shockproof Moisture-Proof Storage Box with Cushioning for EDC Tools and Travel
$12.00
Natural Loofah Dish Cloth - Oil-Resistant, Non-Scratch Industrial Scouring Pad
$3.43
Paper Blending Stumps for Sketching - Professional Art Supplies for Highlights, Shadows, Pastels, Oil Pastels, and Colored Pencils - Complete Set for Beginners and Artists
$4.40
Aromatherapy Cup Candle Container DIY Crystal Diffuser Stone Cup Plaster Cement Cup Glass Vessel Demagnetizing Bowl
$4.68
American Chicano West Coast Style Neon Sign - Gothic Script Rap Shop Decor, Opening Gift, Living Room Light-Up Art
$279.00
Data Cable Organizer, Desktop Fixed Charging Cable Storage, Solid Wood Phone Power Cord Clip, Anti-Tangle Adhesive Hook, No-Drill Computer Wire Winder, Wooden Edge Hanging Cable Collector
$35.00
![[Yugan Member Bulk Pack] Official Authentic Flagship Store Multiple Options Exclusive Medical Hyaluronic Acid Condoms](https://www.gosteppe.com/cache/medium/product/278183/legacy-main-c19ff6b8c4e5a8efea786d28.webp)
![[Black Gold 001 3-in-1] Durex Condoms Official Flagship Store; Ultra-Thin Authentic Safety Sets Bulk Pack](https://www.gosteppe.com/cache/medium/product/275389/legacy-main-7400ceae4a3df34eb3abed82.png)
