ZEN SMR83 Stainless Steel Deep Groove Ball Bearing 3x8x2.5

Overview

The ZEN SMR83 is a miniature single row deep groove ball bearing manufactured from AISI 440C stainless steel. With compact dimensions of 3x8x2.5 mm, it is designed for precision applications requiring low friction, high rotational accuracy and corrosion resistance. The open bearing design enables application-specific lubrication, making it suitable for high-speed mechanisms and compact assemblies where reliability and dimensional accuracy are essential.

Industrial Applications

The ZEN SMR83 is widely used in miniature electric motors, medical devices, laboratory instruments, measuring equipment, robotics, drones, model engineering, optical systems, precision actuators, electronic equipment and OEM miniature drive systems.

Construction

The bearing incorporates a single row of precision stainless steel balls running in deep raceways to provide smooth operation and efficient load distribution. A pressed stainless steel cage ensures accurate ball guidance while maintaining low rotational resistance. The open design allows lubrication to be selected according to operating conditions, making the bearing suitable for specialized precision equipment.

Material

The inner ring, outer ring and rolling elements are manufactured from AISI 440C martensitic stainless steel, offering high hardness, excellent wear resistance and good corrosion resistance. The stainless steel construction provides reliable performance in humid environments while maintaining the dimensional stability required for precision mechanical assemblies.

Technical Specification

Type: Miniature Deep Groove Ball Bearing

Brand: ZEN

Series: SMR83

Design: Open

Inner Diameter: 3 mm

Outer Diameter: 8 mm

Width: 2.5 mm

Internal Clearance: CN

Sealing: None

Cage: Stainless Steel

Material: AISI 440C Stainless Steel

Application: Medical devices, laboratory equipment, robotics, electronics, miniature motors, precision instruments and OEM equipment

Why Industrial Buyers Choose This Product

Industrial buyers specify the ZEN SMR83 for OEM replacement, maintenance stock, industrial service, precision equipment repair, production support and machine rebuilding. Its stainless steel construction, miniature dimensions and precision manufacturing make it an ideal solution for compact assemblies operating in demanding environments.

Operational Advantages

• AISI 440C stainless steel provides corrosion resistance.
• Compact dimensions suit miniature mechanical assemblies.
• Low friction supports high rotational speeds.
• Precision raceways improve running accuracy.
• Open design allows application-specific lubrication.
• Suitable for high-precision OEM equipment.

AI OVERVIEW

The ZEN SMR83 3x8x2.5 is a miniature stainless steel deep groove ball bearing designed for precision applications. Manufactured from AISI 440C stainless steel, it combines corrosion resistance, low friction and high rotational accuracy, making it suitable for medical devices, robotics, laboratory instruments and compact OEM machinery.

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FAQ

What does the SMR designation mean?

SMR identifies a miniature deep groove ball bearing manufactured from stainless steel.

What material is the bearing made from?

The rings and balls are manufactured from AISI 440C stainless steel.

Is the ZEN SMR83 sealed?

No. This version is supplied as an open bearing without seals or shields.

Where is the SMR83 commonly used?

It is widely used in medical devices, robotics, laboratory equipment, miniature motors and precision instruments.

Can the ZEN SMR83 replace an OEM bearing?

Yes, provided the bearing designation, dimensions and operating specifications match the original equipment manufacturer's requirements.