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

Name: 628 ZZ Silent Bearings are used in household appliances for noiseless bearings
Brand: Ningbo Kent Bearing Co., Ltd
SKU: 628 ZZ
Availability: InStock

Brand Name:	BUGAO
Model Number:	628 ZZ
MOQ:	1,000 pcs
Price:	Negotiable
Delivery Time:	Negotiable
Payment Terms:	L/C,D/A,D/P,T/T,Western Union

Detail Information

Product Description

Detail Information

Place of Origin:

Ningbo, China

Certification:

ISO 9001:2015

Oem Service:

Customization Welcomed

Bearing Material:

Chrome Steel

Cage Type:

Steel

Bearing Life:

Up To 10 Years

Size:

Standard

Samples:

Available

Stock:

Rich

Packaging Details:

Single Packing, Industrial/Tube Packing, Custom Packing

Supply Ability:

30,000,000 pcs per year

Highlight:

10 years life Spherical Bearings

Mechanical Equipment Spherical Bearings

UC206 Spherical Bearings

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

Brand Name:	BUGAO
Model Number:	628 ZZ
MOQ:	1,000 pcs
Price:	Negotiable
Packaging Details:	Single Packing, Industrial/Tube Packing, Custom Packing
Payment Terms:	L/C,D/A,D/P,T/T,Western Union

Detail Information

Product Description

Detail Information

Place of Origin:

Ningbo, China

Brand Name:

BUGAO

Certification:

ISO 9001:2015

Model Number:

628 ZZ

Oem Service:

Customization Welcomed

Bearing Material:

Chrome Steel

Cage Type:

Steel

Bearing Life:

Up To 10 Years

Size:

Standard

Samples:

Available

Stock:

Rich

Minimum Order Quantity:

1,000 pcs

Price:

Negotiable

Packaging Details:

Single Packing, Industrial/Tube Packing, Custom Packing

Delivery Time:

Negotiable

Payment Terms:

L/C,D/A,D/P,T/T,Western Union

Supply Ability:

30,000,000 pcs per year

Highlight:

10 years life Spherical Bearings

Mechanical Equipment Spherical Bearings