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 6203 has a 17mm bore, 40mm outer diameter and 12mm width. Measure your shaft diameter and housing bore, then select the bearing whose stated metric dimensions match exactly.

Are these uxcell bearings suitable for Indian industrial environments?

Yes, the double-sealed (2RS) design with chrome steel construction offers good resistance to dust and moisture, making them suitable for many Indian industrial environments. For extremely humid or corrosive conditions, stainless steel bearings might be preferred, but these offer a durable, cost-effective solution for general use.

What is the load rating for these MR128-2RS bearings?

These bearings have a static load rating of 219 newtons and a dynamic load rating of 462 newtons. This makes them suitable for moderate loads in applications like micro motors and office equipment.

How to choose hardware_bearing for Indian buyers?

When choosing hardware bearings for India, consider the environment. Double-sealed bearings (like these 2RS models) are recommended for protection against dust and humidity. Verify the metric dimensions (bore, OD, thickness) precisely match your application. Ensure the load ratings are adequate for your intended use. Imported bearings from authorized US retailers and authorized brand partners offer consistent quality.

Can I use these bearings for high-speed applications?

These MR128-2RS bearings are designed for normal accuracy and general use with a Z2 noise level. While they have a high-limit speed, they are not specifically designed for extremely high-speed applications. Shielded bearings (Z/ZZ) typically offer higher speed capabilities than sealed bearings.

What is the best hardware_bearing for general use?

For general industrial use, deep groove ball bearings with double seals (like these MR128-2RS) made from chrome steel are a good choice. They offer a balance of durability, protection from contaminants, and cost-effectiveness. Ensure the dimensions and load ratings match your specific needs.

uxcell MR128-2RS Deep Groove Ball Bearings 8x12x3.5mm | Double Sealed Chrome Steel, 10 Pcs

Name: uxcell MR128-2RS Deep Groove Ball Bearings 8mm ID x 12mm OD x 3.5mm Bore, Double Sealed Chrome Steel, 10 Pcs | Industrial Grade Radial Ball Bearings
Brand: uxcell
SKU: xkf5402
Price: 1405.00 INR
Availability: InStock

About this item

uxcell MR128-2RS deep groove ball bearings provide reliable performance for industrial equipment and small motors. These bearings feature a chrome steel construction for durability and resistance to heavy loads. The double-sealed design retains lubricant, ensuring low maintenance and extended service life. Imported from authorized US retailers and authorized brand partners, all customs duties and GST are included in the listed price. Delivery is handled via ExpressBox tracked shipping, arriving within 13-15 days.

Each bearing has an 8mm inner diameter, 12mm outer diameter, and 3.5mm thickness. They are rated ABEC-1 (P0) for normal accuracy and have a Z2 noise level, making them suitable for general use. The chrome steel (GCr15) material offers good durability, while the double rubber seals (2RS) protect against contaminants and moisture. These bearings are designed to accommodate both radial and axial loads in both directions, offering cost-effectiveness with little maintenance required.

For applications in India, these bearings are a practical choice for micro motors, small rotary motors, and office equipment. While local alternatives may exist, these imported bearings ensure consistent quality and performance. The pack contains 10 pieces, providing value for multiple applications. Ensure correct dimensions (8x12x3.5mm) are matched to your shaft and housing requirements before ordering.

Key Features

MR128-2RS (I.D.=8mm, O.D.=12mm, Thickness=3.5mm)
mr128-2rs bearings are sealed on BOTH SIDES to keep lubricant in
Made from Chrome Steel (GCr15), durability and resistance to under heavy loads
ABEC Tolerance 1 (P0), Z2 Noise Level for most general use
Static load rating of 219 newtons and dynamic load rating of 462 newtons

Why choose this product

Engineered for Reliability

uxcell MR128-2RS bearings are built with chrome steel for robust performance and resistance to wear. The double-sealed design ensures lubricant stays in and contaminants stay out, a critical factor for longevity in India's varied climate. They are rated for specific load capacities (static 219N, dynamic 462N) and normal accuracy (ABEC-1, Z2 noise), making them suitable for general industrial applications where consistent performance is key. Imported directly from authorized US retailers and authorized brand partners, these bearings offer a reliable alternative to local options, ensuring you receive a product built to international standards.

Ideal for Small Motors & Equipment

These bearings are best suited for applications like micro motors, small rotary motors, and office equipment where precise, low-maintenance rotation is needed. They are ideal for users who require specific metric dimensions (8x12x3.5mm) and a double-sealed design to protect against dust and moisture. Users needing high-speed applications or extremely high load capacities might consider shielded bearings or larger models. For general industrial tasks requiring reliable radial and axial load support, these bearings are a practical choice.

How to use

Confirm the required inner diameter (8mm), outer diameter (12mm), and thickness (3.5mm) precisely match your shaft and housing specifications before installation. — Verify Dimensions
Ensure the shaft and housing bore are clean and free from debris or old lubricant. A clean surface is essential for proper bearing seating and performance. — Clean Mounting Area
Carefully press the bearing onto the shaft or into the housing. Apply force evenly to the outer ring when pressing into the housing, or to the inner ring when pressing onto the shaft, to avoid damaging the bearing. — Install Bearing
After installation, gently rotate the bearing by hand to ensure smooth operation. Listen for any unusual noises or resistance, which may indicate improper installation. — Check Rotation

Example scenarios

Typical situations where uxcell MR128-2RS Deep Groove Ball Bearings 8mm ID x 12mm OD x 3.5mm Bore helps — illustrative scenarios, not customer reviews.

Scenario 1

Illustrative example

Where it helps

Replacing worn bearings in a small electric motor for a household appliance in a humid coastal city.

How this product helps

The uxcell MR128-2RS bearings' double-sealed design protects against moisture and dust, crucial for longevity in humid Indian conditions. Their precise 8x12x3.5mm dimensions ensure a proper fit, and the chrome steel construction offers durability for continuous operation.

Scenario 2

Illustrative example

Where it helps

Upgrading bearings on a hobbyist's 3D printer or small drone in a dusty workshop environment.

How this product helps

The double-sealed 2RS design effectively prevents fine dust particles from entering the bearing, maintaining smooth rotation. The ABEC-1 accuracy and Z2 noise level are suitable for these applications, ensuring reliable performance without excessive noise.

Specifications

Composition

Inner/Outer Race Material	Chrome Steel (GCr15)
Seal Material	Nitrile Butadiene Rubber (NBR)
Cage Material	Stamping Steel

Usage

Suitable For	Industrial equipment, micro motors, small rotary motors, office equipment
Load Type	Radial and Axial loads in both directions
Lubricant Type	Oil
Cost per use	10 bearings at ₹1,405 — ₹141 per bearing
Shelf life after opening	12M (standard for pre-lubricated bearings)
Reapplication math	N/A (sealed bearings are pre-lubricated for life)
Contraindications	Not suitable for extremely high speeds or very heavy loads beyond specified ratings; not for use in highly corrosive environments without additional protection.
Allergens / common irritants	Nitrile Butadiene Rubber (NBR) in seals

How we compare

Feature	uxcell MR128-2RS Deep	Others
Material	Chrome Steel (GCr15)	Chrome Steel (GCr15) or Stainless Steel; quality varies by brand.
Seal Type	Double Sealed (2RS) - Excellent dust/moisture protection	Single/Double Sealed or Shielded; protection level varies.
Load Rating (Dynamic)	462N	Typically 400-500N for similar size, varies by brand.
Accuracy Class	ABEC-1 (P0)	ABEC-1 or ABEC-3 common; quality can differ.
Cost per bearing (10-pack)	₹141 per bearing	₹50 - ₹150 per bearing, depending on brand and type.

Attributes	Current uxcell MR128-2RS Deep Groove Ball Bearings 8mm ID x 12mm OD x 3.5mm Bore, Double Sealed Chrome Steel, 10 Pcs \| Industrial Grade Radial Ball BearingsBuy Now	uxcell MR148-2RS Deep Groove Ball Bearings 8mm Inner Dia 14mm OD 4mm Bore Double Sealed Chrome Steel Z2 10pcs \| Radial Ball Bearings for General UseBuy Now	uxcell MR126-2RS Deep Groove Ball Bearings 6mm x 12mm x 4mm \| Double Sealed Chrome Steel (10 Pcs)Buy Now	HARFINGTON M2 PVC Flat Washers 2mm ID x 5mm OD x 0.3mm Thick \| 300-Piece Pack for Sealing & Gasket ApplicationsBuy Now	Tnisesm 10SQ050 Schottky Blocking Diode 50V 40 Pcs \| Rectifier Diode Kit for Solar PanelBuy Now	FURWEY 10ML Sterile Vials with Injection Ports, 20 Pack \| Borosilicate Glass for High/Low Temp ResistanceBuy Now	Gorilla All Weather Duct Tape, Black, 1.88" x 25 yd (6 Rolls) \| Waterproof Outdoor Repair TapeBuy Now
Spec
Price

uxcell MR128-2RS Deep Groove Ball Bearings 8mm ID x 12mm OD x 3.5mm Bore, Double Sealed Chrome Steel, 10 Pcs | Industrial Grade Radial Ball Bearings

Product details

Frequently bought together

Crowcrowcrow: The Only Safe Lane for US-Market Exclusives

Tested and Trusted · Always Original & 100% Imported