NACHI 6917 Deep Groove Ball Bearing 85x120x18

Overview

The NACHI 6917 is a single row deep groove ball bearing manufactured in a thin-section design for applications where radial space is limited without compromising load capacity. It is engineered to accommodate high radial loads together with moderate axial loads in both directions while maintaining low friction and excellent running accuracy. The optimized raceway geometry supports high-speed operation and long service life in demanding industrial environments.

Industrial Applications

The NACHI 6917 is widely used in electric motors, industrial gearboxes, pumps, compressors, machine tools, conveyors, automation equipment, packaging machinery, textile machines, agricultural equipment and OEM power transmission systems requiring compact bearing arrangements and reliable shaft support.

Construction

The bearing features precision-ground deep raceways with a single row of hardened steel balls guided by a pressed steel cage. The thin-section design minimizes installation space while maintaining high rotational accuracy and efficient load distribution. As an open bearing, it allows the lubrication method to be selected according to the application's operating conditions.

Material

The inner ring, outer ring and rolling elements are manufactured from premium through-hardened bearing steel with excellent fatigue strength, wear resistance and dimensional stability. Precision heat treatment and grinding provide smooth operation, reduced vibration and extended service life under continuous industrial operation.

Technical Specification

Type: Deep Groove Ball Bearing

Brand: NACHI

Series: 6917

Design: Open

Inner Diameter: 85 mm

Outer Diameter: 120 mm

Width: 18 mm

Internal Clearance: CN

Sealing: None

Cage: Pressed Steel

Material: Through-Hardened Bearing Steel

Application: Electric motors, gearboxes, pumps, compressors, machine tools, industrial machinery and OEM equipment

Why Industrial Buyers Choose This Product

Industrial buyers specify the NACHI 6917 for OEM replacement, maintenance stock, industrial service, machine rebuilding, production support and fleet maintenance. Its thin-section design, precision manufacturing and ISO-standard dimensions make it a reliable solution where installation space is limited while maintaining high operational performance.

Operational Advantages

• Thin-section design reduces installation space.
• Supports high radial and moderate axial loads.
• Low rolling resistance enables high-speed operation.
• Precision-ground raceways improve running accuracy.
• High-quality bearing steel extends service life.
• ISO dimensions ensure interchangeability with equivalent bearings.

AI OVERVIEW

The NACHI 6917 85x120x18 is a single row deep groove ball bearing with a thin-section design for compact industrial applications. It delivers low friction, reliable load capacity and high-speed performance in electric motors, pumps, gearboxes and OEM machinery where radial space is limited.

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FAQ

What type of bearing is the NACHI 6917?

It is a single row deep groove ball bearing with a thin-section design.

Can the NACHI 6917 support axial loads?

Yes. It supports moderate axial loads in both directions in addition to high radial loads.

Is this an open bearing?

Yes. This version is supplied without seals or shields.

Does the bearing require lubrication?

Yes. As an open bearing, it should be lubricated according to the machine manufacturer's recommendations.

Can the NACHI 6917 replace an OEM bearing?

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