Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand | NSK |
| Material | High Carbon Chrome Steel |
| Country of Origin | Japan |
| Bearing Type | Deep Groove Ball Bearing |
| Seal Options | ZZ (Metal), VV (Rubber) |
| Internal Clearance | C3 or Standard (CN) |
| Precision Class | ISO Class 0 (ABEC-1) |
| Cage Material | Pressed Steel |
| Lubrication | Pre-lubricated with Grease |
| Recommended Application | Motors, Robotics, Precision Machinery |
Anonymous
Apr 06, 2026
Rating: 5/5
Genuine NSK Quality
Verified the markings on the bearing. Smooth rotation and minimal noise. Perfect for my servo motor project.
Anonymous
Mar 23, 2026
Rating: 5/5
Perfect fit for 3D printer
Replaced worn bearings in my extruder. The C3 clearance handles thermal expansion well. Highly recommend.
Anonymous
Mar 11, 2026
Rating: 5/5
Smooth operation
Bought the 688ZZ variety. They spin very freely with no grit. Packaging was secure against dust.
Anonymous
Feb 16, 2026
Rating: 5/5
Reliable supply
Ordered multiple sizes (685, 686). All arrived labeled correctly. Noise levels are significantly lower than previous suppliers.
Anonymous
Feb 06, 2026
Rating: 4/5
Good but pricey
Quality is undeniable compared to generic brands. Shipping took a bit longer than expected but worth the wait for genuine parts.
Q: What is the difference between ZZ and VV seals?
A: ZZ uses metal shields for high speed, VV uses non-contact rubber seals for better dust protection.
Q: How can I verify these are genuine NSK?
A: Genuine NSK bearings have laser-etched markings and come in branded packaging with authenticity codes.
Q: Is grease pre-applied?
A: Yes, all bearings come pre-lubricated with high-quality grease suitable for general use.
Q: What are the dimensions for the 688 model?
A: The 688 bearing typically has an 8mm bore, 16mm outer diameter, and 5mm width.
Q: Are these suitable for high RPM applications?
A: Yes, especially the ZZ variant which has less friction than rubber seals.
![[Sheet Music Collection for Teachers] Continuously Updated – HD, No Watermark, Includes Tutorial Videos](https://www.gosteppe.com/cache/small/product/270366/legacy-main-31b5e0667fb30a4c5628abbc.webp)
[Sheet Music Collection for Teachers] Continuously Updated – HD, No Watermark, Includes Tutorial Videos
$49.90
Orthodontic Retainer Case for Invisible Braces, Portable Storage and Cleaning Box for Teeth Aligners and Dentures
$23.10
Portable Retainer Case for Braces, Orthodontic Clear Aligner Storage Box with Chewie and Removal Tool
$3.98
Freestanding Multi-Tier Toilet Storage Rack for Bathroom, Laundry, and Balcony Organization
$174.00
Biliansheng Hair Transplant and Care - Herbal Hair Nourishment Treatment Package
$480.00
Traditional Wooden Rattle Drum with Sheepskin Head for Babies - Chewable Handheld Toy with Fortune Zodiac Design
$11.90
2026 Spring New FLTRP Grade 3 English Vocabulary & Sentence Flashcards for Classroom Teaching
$8.42
Custom Signs and Labels New Version No Smoking Material Signs Five Boards One Diagram Fire Safety Instructions PVC Acrylic Number Plate
$2.00
Water Brush Pen Set with Large Capacity, Gouache and Solid Watercolor Paints, Drawing Tools for Students and Beginners
$32.00
Chineng Commercial Automatic Small Scallion Chopper, Multi-function Vegetable Cutter for Chili Slicing and Filling Preparation in Cafeterias
$16,200.00
G80 Lifting Chain with Hook Head, Manganese Steel Alloy Chain for Hoisting Stones and Towing
$79.00
Car Interior Button Frame and Window Switch Chrome Panel, New Energy Vehicle ABS Parts with Hot Melt Welding and Injection Molding
$96.00
Foldable Multi-Function Tire Stone Removal Tool for Cars
$53.60
Premium 3D Printing Pen RP600A, No Display, Best-Selling Gift for Kids, 3D Pen RP6
$230.15
Marie's Thickened 8K Watercolor Pad, 16K Portable Sketchbook for Beginners and Art Students - Travel-friendly Multi-use Painting Book
$7.23
Car Tire Stone Removal Hook - Stainless Steel Multi-Function Tool for Cleaning Pebbles from Treads
$3.80
Premium Thickened 50% Wool Felt Mat for Calligraphy and Chinese Painting - Dedicated Tablecloth for Four Treasures of the Study; Ideal for Student Practice
$2.59
Fish Chunk Meat Tumbling Mixer Dried Meat Seasoning Mixer Red Oil King Oyster Mushroom Mixing Machine Yikang Machinery
$17,419.00
Custom Company Door Plaques, Bronze Plates, Outdoor Stainless Steel Signs, Factory Display Boards, Metal Advertising Signs with Etched Customization
$25.50
Blower Motor for BMW 5 Series, 6 Series, 7 Series, 8 Series, F90 M5, G Chassis
$480.00
Large Size Thickened Felt Mat for Calligraphy, Wool Felt Pad for Brush Practice, Traditional Chinese Painting Desk Mat
$13.50
Creative Studio Sign Custom Door Plate Company Billboard LOGO Design Storefront Display
$119.00
Router Storage Box, Cable Organizer, WiFi Set-Top Box Stand, Gigabit Broadband Shelf with Wall Mount
$23.60
Baby Rattle with Teether for 0-6 Month Newborns, Sand Shaker and Hand Drum for Visual and Auditory Tracking
$10.50
Splicable Folding Food Warmer Partition Temperature Control Insulation Plate Hot Dish Plate Induction Cooker Plate Constant Temperature Heating Food Warmer Table Mat
$315.00
Marie's Kneaded Eraser Cotton for Sketching, Student-Use Blending Stump, Makeup Sponge for Art Students, Paper Blending Tool, Soft Absorbent Water-Drop Sponge Ball for Sketching
$8.33
Soft Cheese Processing Equipment, Lab-Type Cheese Stretching and Mixing Machine, Multi-Function Hot Water Stretching Unit
$210,210.00
Imported IKO Needle Roller Bearings TAF121912, 121915, 121916, 142212, 142216, 142220
$26.00
Portable Watercolor Sketchbook – 100% Cotton Mini Square Pocket Book for Travel, On-the-Go Sketching, Tear-Off Art Pages
$10.90
Dongguan Rotary Pad Printer Manufacturer - Fully Automatic 4-Station Pad Printer for Plastic, Metal, Text, Patterns, and Logos
$500.00
![[M2-M20] Stainless Steel Spring Washer](https://www.gosteppe.com/cache/medium/product/16306/legacy-main-ef3d2dba3bde669d48e6cca2.webp)
