Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Inner Diameter (Bore) | 12 mm |
| Outer Diameter (OD) | 18/21/24/26/28/30/32/36 mm (Select Variant) |
| Material | Chrome Steel (GCr15) |
| Seal Type | ZZ (Metal) or 2RS (Rubber) |
| Precision Rating | ABEC-7 / P4 |
| Maximum Speed | 20,000 - 35,000 RPM |
| Lubrication | Pre-lubricated High-Speed Grease |
| Cage Material | Steel or Nylon |
| Operating Temperature | -20°C to +120°C |
| Package Quantity | 10 Pieces per Pack |
Anonymous
Mar 30, 2026
Rating: 5/5
Reliable non-standard sizes
Hard to find 21mm OD bearings locally. These are genuine chrome steel and hold up under load without issue.
Anonymous
Mar 06, 2026
Rating: 5/5
Great for high RPM applications
Using these in a high-speed grinder. No heat buildup after prolonged use and vibration is minimal.
Anonymous
Feb 26, 2026
Rating: 5/5
Ultra quiet as advertised
Replaced standard bearings in my CNC spindle. The noise reduction is noticeable immediately upon startup.
Anonymous
Feb 24, 2026
Rating: 4/5
Good quality, slight delay
Bearings are high quality and precise. Shipping took a bit longer than expected but worth the wait for the size.
Anonymous
Feb 09, 2026
Rating: 5/5
Perfect for custom motor build
Needed a specific OD for a drone motor modification. These fit perfectly and run very smooth. High quality steel.
Q: Are these sealed against dust?
A: Yes, choose the 2RS option for rubber sealing which protects against dust and moisture effectively.
Q: Can I mix different ODs in one order?
A: Please select specific OD variants separately to ensure accurate inventory allocation and shipping.
Q: What grease is used inside?
A: We use a high-speed synthetic grease suitable for most motor applications within the temperature range.
Q: Is the bore exactly 12mm?
A: Yes, the inner bore is standardized at 12mm with h6 tolerance for a secure shaft fit.
Q: Do you offer bulk pricing?
A: Yes, contact our support team directly for orders exceeding 100 packs for discounted rates.
Music Play Lao Wei Khalil Fong Guitar Chord Sheet - Digital Version
$9.00
Kimberly-Clark 41412 WYPALL X70 All-Purpose Wipes - Oil/Absorbent/Solvent Resistant Shop Towels
$110.00
EMG 60/85/81/81TW/89/89R Active Dual-Coil Guitar Pickups - Cuttable and Ready to Install
$910.00
Retainer Storage Case with Mirror for Cleaning and Soaking Portable Orthodontic Aligner Box
$24.93
Suitable for 195/55R15 & 195/60R15 Used Tires Year-Round Supply Low Price Guaranteed Quality
$80.00
Sink Drain Rack Corner Hanging Basket - Kitchen Sponge and Cloth Organizer, Multi-Function Home Storage Solution
$13.73
Magnetic Refrigerator Side Storage Rack - No-Drill Wall Organizer for Spices and Utensils
$9.10
Multi-Function Car Tire Stone Removal Hook Tool for Picking and Digging Out Debris
$7.35
Suction Cup Sink Strainer - Disposable Kitchen Drain Filter for Food Scraps and Waste
$14.30
Kimberly-Clark Wiper Paper, Industrial Cleaning Wipes for Oil and Grease, Factory & Laboratory Use
$963.52
Loose Gold Rutilated Quartz Beads, Donghai Agate, Chalcedony, Jade, Cat's Eye, Titanium Crystal, Aquamarine, White and Yellow Crystal Single Beads for Bracelets
$8.42
Faucet Drain Mat, Non-Slip Countertop Pad for Kitchen and Bathroom, Splash-Proof Sink Organizer, Thickened Mold-Resistant Silicone Mat
$3.78
New Pirelli Tire 255/40R20 101W AO PZERO PZ4 with Silent Cotton Original Fit for Audi A6L
$1,358.00
Oriental Pearl Dual Porcelain Jar Gift Set: Green Tea, Black Tea, Jin Jun Mei, Pu'erh Loose Leaf Tea in Porcelain Jars
$149.00
Purified Water Bucket Stand Inverted Water Dispenser Pump Simple Mineral Water Drinking Machine Press Pump
$10.80
New Children's Gouache Paint Brushes DIY Hand-Painted Graffiti Art Class Watercolor Acrylic Paint Brushes Bristle Round Tip Brush
$6.41
Natural Clear Quartz Fully Clean Untreated Faceted Round Rice Beads - For Women's Bracelets, Spacer Beads, and DIY Crafts
$6.63
Sponge Brushes for Kids' Crafts and Creative Painting - Student Art Stamping Tools, DIY Sponge Paintbrushes
$13.86
Jiuchenggong Liquan Ming Tang Dynasty Ouyang Xun Yao Mengqi Copybook, Regular Script Brush Calligraphy Workbook, 3 Volumes, 188 Pages
$17.90
Shaped Watercolor Paper Ticket Stubs - Blank Postage Stamp Bookmarks with Serrated Edges, Thickened 300g Premium Cotton Pulp, Fine Texture for Art Hand Painting, Easy Blending, High Absorbency, Wrinkle-Resistant - Perfect for Postcards and Creative Cards
$9.85
Naitong Automatic Retractable Air Hose Reel with PU Braided Hose for Pneumatic Tools and Car Detailing
$119.00
Premium Wall-Mounted Aromatherapy Empty Bottle – 100ML Plastic Square Diffuser Bottle with Wall-Mount Adhesive Sticker
$2.98
Leyingfang Floating Pen for Kids' Water Drawing, Colorful Water-Soluble Suspended Markers, Erasable Watercolor Pens
$13.80
Loose Rose Quartz Beads, Donghai Agate, Chalcedony, Jadeite, and Madagascar Pink Crystal for DIY Jewelry Making
$6.72
Expandable Stainless Steel Sink Rack, Multi-Function Kitchen Drain Board for Fruits, Vegetables, and Utensils
$14.90
Transparent Retainer Case Aligner Storage Box Portable Carry-On Squeeze Bag Orthodontic Appliance Rubber Band Cleaning Box
$18.50
Transparent Data Cable Organizer Bag for Travel - Portable Multi-Use Visible Storage for Digital Chargers and Cable Management
$7.36
Finished Seal Calligraphy Finished Stone Stamp Sellos Chines
$108.58
Chunfei Grocery Store Commuter Hard Fork Low-Beam Mountain Bike for Urban Roads, Suburbs, School, and Outings
$2,247.00
6-Cavity Large Square French Flower DIY Soap Silicone Mold for Essential Oil and Milk Soap
$4.93
![[M2-M20] Stainless Steel Spring Washer](https://www.gosteppe.com/cache/medium/product/16306/legacy-main-ef3d2dba3bde669d48e6cca2.webp)
