Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Brand Name | Harbin (HRB) |
| Bearing Type | Deep Groove Ball Bearing |
| Model Series | 6300 Series (6306-6311) |
| Seal Configuration | ZZ (Metal) or 2RS (Rubber) |
| Ring Material | GCr15 Chrome Steel |
| Precision Grade | P0 (ABEC-1) |
| Internal Clearance | C0 (Standard) |
| Cage Material | Steel Stamped |
| Lubrication | Pre-greased |
| Country of Origin | China |
Anonymous
Apr 15, 2026
Rating: 5/5
HRB Quality
Always trust HRB for industrial use. These bearings have a long lifespan compared to generic brands. Will order again.
Anonymous
Mar 27, 2026
Rating: 4/5
Good but packaging could be better
Bearings are genuine and work well, but the outer shipping box was slightly dented upon arrival. The product inside was safe though.
Anonymous
Mar 12, 2026
Rating: 4/5
Solid performance
Using in a high vibration environment for a pump motor. Holding up well after three months of continuous operation.
Anonymous
Feb 15, 2026
Rating: 5/5
Excellent for machinery
Replaced old bearings in my lathe with the 6308 model. Very smooth operation and no noise. Genuine HRB quality is evident.
Anonymous
Feb 07, 2026
Rating: 5/5
Fast shipping
Needed 6308 ZZ urgently for a repair job. Arrived on time and works great. No vibration issues.
Q: Do you offer bulk discounts for orders over 50 units?
A: Yes, please contact our sales department directly through the store page for volume pricing options.
Q: What is the maximum RPM for the 6309 bearing?
A: Max speed depends on load and lubrication, but the reference speed is approximately 7000 rpm for grease lubrication.
Q: What is the inner diameter of the 6310 model?
A: The 6310 bearing has an inner diameter of 50mm, an outer diameter of 110mm, and a width of 27mm.
Q: Are these bearings pre-lubricated with grease?
A: Yes, all units come pre-greased with standard industrial lubricant suitable for most general applications.
Q: How can I verify these are genuine HRB products?
A: Genuine HRB bearings feature laser-etched branding on the ring and come in official packaging with a security hologram.
![[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)
