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628 ZZ Silent Bearings are used in household appliances for noiseless bearings
628 ZZ Silent Bearings are used in household appliances for noiseless bearings
628 ZZ Silent Bearings are used in household appliances for noiseless bearings
628 ZZ Silent Bearings are used in household appliances for noiseless bearings
628 ZZ Silent Bearings are used in household appliances for noiseless bearings
628 ZZ Silent Bearings are used in household appliances for noiseless bearings
628 ZZ Silent Bearings are used in household appliances for noiseless bearings
628 ZZ Silent Bearings are used in household appliances for noiseless bearings
Specifications
Brand Name :
BUGAO
Model Number :
628 ZZ
Certification :
ISO 9001:2015
Place of Origin :
Ningbo, China
MOQ :
1,000 pcs
Price :
Negotiable
Payment Terms :
L/C,D/A,D/P,T/T,Western Union
Supply Ability :
30,000,000 pcs per year
Delivery Time :
Negotiable
Packaging Details :
Single Packing, Industrial/Tube Packing, Custom Packing
Oem Service :
Customization Welcomed
Bearing Material :
Chrome Steel
Cage Type :
Steel
Bearing Life :
Up to 10 years
Size :
Standard
Samples :
Available
Stock :
Rich
Description

The 628 ZZ is an ultra-quiet, double-shielded deep groove ball bearing specifically designed for noise-sensitive household appliances. With 8×24×8 mm (ID×OD×W) dimensions, this bearing delivers virtually silent operation (<15 dB) while maintaining long service life in washing machines, refrigerators, air purifiers, and small kitchen appliances.

Engineered with special noise-dampening technology, it features precision-polished raceways and optimized cage designs to eliminate operational sounds. The dual metal shields (ZZ) provide lifetime lubrication retention while preventing dust ingress in appliance environments.


Technical Specifications & Dimensions

Parameter Specification
Model 628 ZZ
Type Deep Groove Ball Bearing
Dimensions 8×24×8 mm (ID×OD×W)
Material Chrome Steel (GCr15) / Optional Stainless Steel (SUS420)
Shield Type Double Metal Shields (ZZ)
Clearance C2 (Tighter than standard)
Precision Grade ABEC-5 (Special Silent Grade)
Dynamic Load 4.2 kN
Static Load 2.0 kN
Max Speed 12,000 RPM (Grease)
Noise Level <15 dB at 1,500 RPM
Temperature Range -30°C to +150°C
Lubrication Special Silent Grease (NSF H1 certified)
L10 Life 30,000 hours @ 1,800 RPM


Key Features

✔ Whisper-Quiet Operation – <15 dB noise level for silent homes
✔ Vibration Control – Precision-balanced for smooth appliance performance
✔ Appliance-Grade Lubricant – NSF H1 food-safe grease option available
✔ Dual Protection – ZZ shields prevent lint/dust ingress in laundry apps
✔ Corrosion-Resistant – Optional stainless steel for humid environments


Household Applications

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628 ZZ Silent Bearings are used in household appliances for noiseless bearings

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Product Detail
Brand Name :
BUGAO
Model Number :
628 ZZ
Certification :
ISO 9001:2015
Place of Origin :
Ningbo, China
MOQ :
1,000 pcs
Price :
Negotiable
Contact Supplier
628 ZZ Silent Bearings are used in household appliances for noiseless bearings
628 ZZ Silent Bearings are used in household appliances for noiseless bearings
628 ZZ Silent Bearings are used in household appliances for noiseless bearings
628 ZZ Silent Bearings are used in household appliances for noiseless bearings

Ningbo Kent Bearing Co., Ltd

Verified Supplier
2 Years
zhejiang, ningbo
Since 2003
Business Type :
Manufacturer
Main Products :
6000 Series Bearing, Electric Motor Bearing, 6200 Series Bearing
Certification Level :
Verified Supplier
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