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628/8R-2Z Single Row Miniature Deep Groove Ball Bearing Double ZZ Metal Shield 8x16x5mm Micro Motor Precision Equipment

Name: 628/8R-2Z Single Row Miniature Deep Groove Ball Bearing Double ZZ Metal Shield 8x16x5mm Micro Motor Precision Equipment
Brand: Wuxi Guangqiang Bearing Trade Co.,Ltd
SKU: 628/8R-2Z
Price: 499.10 USD
Availability: InStock

Brand Name:	GQZ
Model Number:	628/8R-2Z
MOQ:	100.PCS
Price:	negotiation
Delivery Time:	5 working days
Payment Terms:	T/T,Paypal

Detail Information

Product Description

Detail Information

Place of Origin:

CHINA

Certification:

ISO9001/ISO14001/GJB9001

Feature:

High Precision

Bearings:

16014J/C3

Chamfer:

Black,bright,nature

Free Sample:

Available

Dimension:

110x150x20 Mm

Specifiexcavatorion:

65 × 140 × 33mm

Customized:

Acceptable

Outer Diameter D:

47 Mm

Packaging Details:

Standard Carton Box

Supply Ability:

1000.pcs / Month

Highlight:

8x16x5mm miniature deep groove ball bearing

double ZZ metal shield ball bearing

micro motor precision equipment bearing

Product Description

1.Product Overview

The 628/8R-2Z miniature deep groove ball bearing is equipped with double-sided ZZ metal dust shields, standard micro dimension 8×16×5mm. It features compact thin structure, low friction and stable high-speed rotation, can bear radial load and slight bidirectional axial load. Double steel shields block fine dust and particles, suitable for micro motors, model equipment, small cooling fans and miniature precision instruments.

👉 Get a quote within 24 hours for your project

2.Technical Specifications

Model	628/8R-2Z
Inner Diameter (d)	8mm
Outer Diameter (D)	16mm
Width (B)	5mm
Structure	Miniature single row deep groove ball bearing
Shield Type	Double sides ZZ stamped metal dust shield
Cage	Lightweight stamped steel cage
Material	High carbon chromium bearing steel
Clearance	Standard C0, C3 customizable
Limiting Speed (Grease)	42000rpm

👉 Full technical datasheet and installation drawings available upon request

3.Key Advantages

Double ZZ metal shields isolate fine dust, prevent internal grease leakage for long service life
Ultra-small compact size fits narrow installation space of miniature rotary parts
Superfinished raceway and tiny steel balls realize quiet, low-vibration high-speed operation
High-hardness bearing steel improves wear resistance for continuous micro equipment operation
Multiple variants available: open 628/8R, 628/8R-2RS rubber sealed, enlarged C3 clearance
ABEC-1/ABEC-3 precision grades optional for optical and testing precision devices

👉 Compact dust-proof micro bearing solution for small high-speed rotating equipment

4.Applications

This miniature double shield ball bearing is widely used in:

Model brushless motors, miniature cooling fans and drone small power assemblies
Optical lens adjusting parts, lab testing miniature precision instruments
3C electronic micro rotating components, small household appliance drive structures
Mini medical devices and tiny automation transmission assemblies

👉 Cost-effective dust-proof miniature bearing for micro motor and precision light industry

5.Why Choose GQZ Bearing

25+ years experience in miniature deep groove ball bearing manufacturing
Exported to 50+ countries worldwide
Rich OEM experience for 628 series ZZ/2RS sealed micro bearings
Strict dimensional, noise and high-speed durability inspection before shipment
Fast professional technical reply within 24 hours
Stable bulk supply for long-term micro motor and precision instrument factory cooperation

👉 We focus on stable low-noise micro bearing quality and long‑term partnership

6.Quality Assurance

Raw bearing steel incoming hardness inspection
Ultra-precision superfinishing for micro raceway and tiny steel balls
Standard quenching & tempering heat treatment for uniform hardness
High-speed rotation noise test, clearance grouping and full dimensional recheck
Anti-rust packaging and separate counting packing before delivery

👉 Consistent quiet high-speed dust-proof performance guaranteed for every miniature bearing

7.Get a Quote Now

Looking for double metal shield miniature 628/8R-2Z deep groove ball bearing supplier?

👉 Send your inquiry to get:

Fast factory quotation within 24h
Professional micro motor miniature bearing technical parameter support
Custom open type / 2RS seal & precision grade solution suggestions
Competitive bulk wholesale factory price

👉 Click “Send Inquiry” or contact us now

Spherical Roller Bearing Image 1

8.FAQ

Q1: What variants can you supply for 628/8R?
Open type 628/8R, dust-proof ZZ 628/8R-2Z, splash-proof rubber seal 628/8R-2RS, C3 clearance customized.
Q2: What’s the max working speed of 628/8R-2Z?
Grease lubrication limiting speed reaches 42000rpm for continuous high-speed running.
Q3: What is your standard production lead time?
Standard stock models:7–12 working days
Custom sealed/precision grade orders take 12–18 days

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