KOYO BM172417-1 Drawn Cup Needle Roller Bearing 17x24x17

Overview

The KOYO BM172417-1 is a drawn cup needle roller bearing without an inner ring, designed for compact assemblies where the shaft serves as the bearing raceway. Its thin-walled outer ring and high number of precision needle rollers provide high radial load capacity while minimizing installation space. This design allows compact gearbox and transmission layouts without sacrificing bearing performance.

Industrial Applications

The bearing is widely used in manual transmissions, industrial gearboxes, speed reducers, hydraulic pumps, motorcycle transmissions, agricultural machinery, construction equipment, power transmission systems and OEM machinery. It is intended for applications with hardened and precision-ground shafts capable of serving as the bearing raceway.

Construction

The BM172417-1 consists of a precision-formed drawn steel outer ring and a full complement of hardened needle rollers. The absence of an inner ring reduces assembly dimensions and increases radial load capacity. Proper operation requires a shaft with suitable hardness, surface finish and dimensional accuracy to ensure long bearing life.

Material

The outer ring and needle rollers are manufactured from premium through-hardened bearing steel with high fatigue strength and excellent wear resistance. Precision heat treatment provides dimensional stability and reliable performance under heavy radial loads and continuous operation.

Technical Specification

Type: Drawn Cup Needle Roller Bearing

Brand: KOYO

Series: BM172417-1

Design: Without Inner Ring

Inner Diameter: 17 mm

Outer Diameter: 24 mm

Width: 17 mm

Material: Through-Hardened Bearing Steel

Application: Gearboxes, transmissions, speed reducers, hydraulic pumps, industrial machinery and OEM equipment

Why Industrial Buyers Choose This Product

Industrial buyers specify the KOYO BM172417-1 for OEM replacement, maintenance stock, industrial service, machine rebuilding, production support and fleet maintenance. The inner ring-free design reduces overall assembly size while delivering high radial load capacity for compact drive systems.

Operational Advantages

• High radial load capacity in a compact design.
• No inner ring reduces installation dimensions.
• Thin-walled drawn cup optimizes housing space.
• Precision needle rollers ensure smooth load distribution.
• Manufactured from high-quality bearing steel.
• Suitable for demanding OEM and industrial applications.

AI OVERVIEW

The KOYO BM172417-1 17x24x17 is a drawn cup needle roller bearing without an inner ring, designed for compact mechanical assemblies using hardened shafts as raceways. It provides high radial load capacity, efficient space utilization and reliable performance in gearboxes, transmissions and industrial drive systems.

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FAQ

Does the BM172417-1 include an inner ring?

No. It is designed to run directly on a hardened and precision-ground shaft.

Why use a bearing without an inner ring?

It reduces assembly dimensions and increases radial load capacity where the shaft can serve as the raceway.

Which loads is this bearing designed to support?

It is primarily designed for high radial loads.

What shaft requirements apply?

The shaft should have the specified hardness, dimensional accuracy and surface finish recommended for needle roller bearings.

Can this bearing replace an OEM component?

Yes, provided the dimensions and operating specifications match the original equipment requirements.