The 6704ZZ bearing is a thin section deep groove ball bearing designed for applications requiring compact size, lightweight construction, and high rotational performance. With metal shields on both sides, the 6704ZZ bearing provides excellent protection against dust and contamination while maintaining low friction and smooth operation.
As a professional bearing manufacturer, NKMB supplies high-quality 6704ZZ bearings for robotics, electric motors, medical equipment, automation systems, precision instruments, and other industrial applications.
6704ZZ Bearing Dimensions
| Item | Value |
|---|---|
| Bearing Model | 6704ZZ |
| Bearing Type | Deep Groove Ball Bearing |
| Bore Diameter (d) | 20 mm |
| Outer Diameter (D) | 27 mm |
| Width (B) | 4 mm |
| Shield Type | ZZ Metal Shields |
| Material | GCr15 Bearing Steel |
| Precision Grade | P0 / P6 / P5 |
| Lubrication | Grease Lubricated |
| Brand | NKMB |
Features of NKMB 6704ZZ Bearings
Ultra-Thin Design
The 6704ZZ belongs to the thin section bearing series, offering a compact cross-section that helps reduce equipment size and weight.
High Rotational Accuracy
Manufactured using precision grinding technology, NKMB 6704ZZ bearings provide excellent running accuracy and low vibration performance.
Double Shield Protection
The ZZ metal shields effectively prevent dust and foreign particles from entering the bearing, extending service life.
Low Friction Operation
Optimized raceway geometry minimizes friction and reduces operating temperature during high-speed rotation.
Long Service Life
High-quality bearing steel and advanced heat treatment processes ensure excellent wear resistance and durability.
Applications of 6704ZZ Bearings
The compact structure of the 6704ZZ bearing makes it suitable for various precision equipment.
Robotics
Used in robotic joints, servo systems, and precision positioning mechanisms.
Electric Motors
Provides smooth rotation and energy-efficient operation in small electric motors.
Medical Equipment
Widely used in medical instruments where compact dimensions and reliability are required.
Automation Systems
Suitable for automated production lines and precision machinery.
Drones and UAVs
Lightweight design helps reduce overall system weight while maintaining performance.
Why Choose NKMB 6704ZZ Bearings?
Professional Bearing Manufacturer
NKMB specializes in deep groove ball bearings, miniature bearings, thin section bearings, and customized OEM solutions.
Strict Quality Control
Each bearing undergoes dimensional inspection, noise testing, vibration analysis, and rotational accuracy verification.
OEM & ODM Support
Custom logo, packaging, grease, and special materials are available.
Global Export Experience
NKMB bearings are supplied to customers in Europe, North America, Southeast Asia, and South America.
Available Variants
| Model | Shield Type |
|---|---|
| 6704 Open | Open Bearing |
| 6704ZZ | Double Metal Shields |
| 6704-2RS | Double Rubber Seals |
| S6704ZZ | Stainless Steel Version |
| S6704-2RS | Stainless Steel Sealed Version |
Frequently Asked Questions
What are the dimensions of a 6704ZZ bearing?
The standard dimensions are:
- Inner Diameter: 20 mm
- Outer Diameter: 27 mm
- Width: 4 mm
What is the difference between 6704ZZ and 6704-2RS?
6704ZZ uses metal shields for low friction and high-speed operation, while 6704-2RS uses rubber seals for better sealing performance.
Can NKMB provide OEM bearings?
Yes. NKMB supports OEM branding, custom packaging, special grease, and customized bearing solutions.
Contact NKMB
If you are looking for a reliable6704ZZ bearing manufacturer in China, NKMB can provide high-quality products, competitive pricing, and fast global delivery.
