What is the difference between shielded (ZZ) and sealed (2RS) deep-groove ball bearings?

Shielded (ZZ) bearings use metal shields that retain grease and block larger debris while allowing higher speeds. Sealed (2RS) bearings use rubber contact seals that give better protection against fine dust and moisture, which suits dusty or humid Indian conditions. Choose based on your speed and contamination needs.

How do I know which deep-groove bearing size I need?

Match the ISO designation, which encodes the dimensions — for example a 6702ZZ has a 15mm inner diameter, 21mm outer diameter and 4mm thickness. Measure your shaft diameter and housing bore, then select the bearing whose stated metric dimensions match exactly.

Are uxcell 6702ZZ bearings suitable for high-speed applications in India?

These 6702ZZ bearings are double shielded, which is good for retaining grease and blocking dust. They are rated for normal accuracy and Z2 noise levels, making them suitable for general industrial use and micro motors. For extremely high-speed applications, open or specifically designed high-speed bearings might be more appropriate, but these offer good reliability for typical motor speeds.

Can I use these bearings in humid Indian weather without them rusting?

The bearings are made from Chromium Steel (GCr15), which offers good durability. While not stainless steel, the double shielding helps protect the internal components from moisture and dust. For prolonged exposure to heavy monsoon rains or highly corrosive environments, stainless steel bearings would offer superior rust resistance, but these are generally suitable for typical industrial use.

What is the load capacity of the uxcell 6702ZZ bearings?

The uxcell 6702ZZ bearings have a static load rating of 581 newtons and a dynamic load rating of 937 newtons. This indicates their ability to withstand stationary and moving forces respectively, making them suitable for various mechanical components and equipment that operate under moderate loads.

How to buy original uxcell 6702ZZ ball bearings in India?

All customs duties and Indian import taxes are pre-paid by crowcrowcrow and included in the listed INR price. These bearings are sourced directly from authorized US retailers and authorized brand partners, ensuring authenticity and quality. They are factory-sealed and delivered via ExpressBox with tracking, providing a secure and transparent purchasing experience.

uxcell 6702ZZ Ball Bearings 15x21x4mm | Angular Contact Ball Bearing India

Name: uxcell 6702ZZ Deep Groove Ball Bearings 15mm x 21mm x 4mm Double Shielded Chrome Steel 2 Pcs | Industrial Grade Precision
Brand: uxcell
SKU: mwr2682
Price: 1080.00 INR
Availability: InStock

About this item

uxcell 6702ZZ deep groove ball bearings provide essential functionality for various industrial applications in India. These bearings, measuring 15mm x 21mm x 4mm, are constructed from high-quality Chromium Steel (GCr15) and feature double shielding (ZZ) to effectively retain lubricant and protect against dust and debris, ensuring consistent performance even in challenging environments.

Designed for normal accuracy with ABEC 1 (P0) tolerance and a Z2 noise level, these bearings are suitable for micro motors, small rotary motors, and office equipment. Their pre-lubricated nature and low friction minimize maintenance requirements, making them a cost-effective choice for continuous operation. The static load rating is 581N and the dynamic load rating is 937N.

Imported directly from authorized US retailers, these bearings offer superior quality compared to many local alternatives. All customs duties and GST are included in the final price. Delivered via ExpressBox with tracking, ensuring timely arrival with 12-14 days.

Key Features

6702ZZ (I.D.=15mm, O.D.=21mm, Thickness=4mm)
6702-2Z bearings are shielded on BOTH SIDES to keep lubricant in
Made from Chromium Steel (GCr15), durability and resistance to under heavy loads
ABEC Tolerance 1 (P0), Z2 Noise Level for most general use
Static load rating of 581 newtons and dynamic load rating of 937 newtons

Why choose this product

Engineered for Industrial Performance

These uxcell 6702ZZ bearings are built with Chromium Steel (GCr15) for superior hardness and wear resistance, crucial for applications experiencing constant motion and load. The double shielding (ZZ) ensures lubricant retention and protection against contaminants, a vital feature for longevity in environments prone to dust or humidity. With ABEC 1 (P0) accuracy and Z2 noise levels, they provide a balance of performance and quiet operation suitable for micro motors and office equipment. Unlike generic bearings, these are sourced from authorized US channels, guaranteeing authenticity and quality.

Ideal for Dusty & Humid Indian Climates

These bearings are best suited for applications where dust and moisture are concerns, such as in small machinery operating in workshops or humid coastal regions of India. Their double-shielded design significantly reduces the risk of contamination and rust, extending their lifespan. They are ideal for DIY projects, small motor repairs, or upgrading components in office equipment. Individuals seeking bearings for high-speed, clean-room environments might consider open or sealed (RS/2RS) variants for different lubrication and speed requirements.

How to use

Confirm your application requires a bearing with a 15mm inner diameter, 21mm outer diameter, and 4mm thickness. Ensure the shaft and housing match these precise metric measurements. — Verify Dimensions
Carefully press the bearing onto the shaft or into the housing. Avoid applying excessive force directly to the inner ring or the balls; use a bearing press or appropriate fixture for even pressure distribution. — Install Bearing
Gently rotate the bearing by hand to ensure it spins freely without excessive noise or resistance. The double shielding should keep the pre-applied grease contained, facilitating smooth operation. — Check Rotation

Example scenarios

Typical situations where uxcell 6702ZZ Deep Groove Ball Bearings 15mm x 21mm x 4mm Double Shielded Chrome Steel 2 Pcs | Industrial Grade Precision helps — illustrative scenarios, not customer reviews.

Scenario 1

Illustrative example

Where it helps

Repairing a small electric motor in a fan or pump in a dusty workshop environment.

How this product helps

The uxcell 6702ZZ bearings' double shielding protects the internal grease from dust ingress, ensuring smoother operation and longer motor life compared to open bearings. This reduces the need for frequent maintenance in such conditions.

Scenario 2

Illustrative example

Where it helps

Replacing worn bearings in office equipment like a printer or scanner in a humid Indian city.

How this product helps

The Chromium Steel construction offers good resistance to wear. While not stainless, the sealed nature helps prevent moisture from reaching critical components, extending the life of the equipment in humid climates where rust can be a concern.

Specifications

Usage

Lubricant Type	Grease
Application	Industrial equipment, micro motors, small rotary motors, office equipment
Cost per use	2 bearings at ₹1,080 — ₹540 per piece
Shelf life after opening	12 Months (Category Default)
Reapplication math	N/A (Durable Product)
Contraindications	Not recommended for extremely high-speed applications or environments requiring liquid resistance (consider RS/2RS seals).
Allergens / common irritants	None explicitly listed

How we compare

Feature	uxcell 6702ZZ Deep	Others
Authenticity & Sourcing	Sourced from authorized US retailers and brand partners, factory-sealed.	Varies by local supplier; authenticity and sourcing transparency can be inconsistent.
Material & Durability	Chromium Steel (GCr15) for good hardness and load resistance.	Often standard steel or alloy steel; quality and specific grade can vary significantly.
Shielding & Protection	Double Shielded (ZZ) to retain lubricant and block dust/debris.	May be open, single-shielded, or double-shielded; protection level varies.
Cost per Bearing	2 bearings at ₹1,080 — ₹540 per piece	Local 2-piece sets can range from ₹150-₹400 depending on brand and specs.
Accuracy & Noise	ABEC 1 (P0) tolerance, Z2 noise level for general use.	Accuracy and noise levels can range widely; often not specified clearly.

SKU	mwr2682
Brand	uxcell
Model Number	6702ZZ
Seal Type	Double Shielded (ZZ)
Material	Chromium Steel (GCr15)
Cage Material	Stamping Steel
Inner Diameter	15 mm (0.59 in)
Outer Diameter	21 mm (0.83 in)
Thickness	4 mm (0.16 in)
Accuracy Class	P0 (ABEC 1)
Noise Level	Z2
Dynamic Load Rating (Cr)	937 N
Static Load Rating (Cor)	581 N
Package Contents	2 Pcs
Country of Origin	Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners

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uxcell 6702ZZ Deep Groove Ball Bearings 15mm x 21mm x 4mm Double Shielded Chrome Steel 2 Pcs | Industrial Grade Precision

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About this item

Key Features

Why choose this product

How to use

Example scenarios

Specifications

Usage

How we compare

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