IKO K40X45X27 KT404527C3

IKO K 40X45X27 Needle Roller and Cage Assembly

Description

The IKO K 40X45X27 is a high-performance needle roller and cage assembly designed for applications requiring high load capacity and rigidity within a limited radial space. As a component-style bearing, it allows for the use of the shaft and housing bore as raceways, enabling a more compact and lightweight machine design. This bearing is precision-engineered for smooth operation and long service life in demanding industrial environments.

Specifications

• Manufacturer: IKO
• Type: K 40X45X27
• Category: Needle Roller and Cage Assembly
• Inside Diameter (d): 40 mm
• Outside Diameter (D): 45 mm
• Width (B): 27 mm
• Cage Material: Steel
• Rollers Material: Bearing Steel

Label Info

• IKO K 40X45X27
• KT404527C3
• B032

Application

This type of bearing is commonly used in automotive transmissions, two-cycle engines, construction equipment, gear pumps, and various other industrial machinery where space is a critical constraint and high radial loads are present.

Country of Origin

Made in Japan.

CO2 Impact

Opting for this component helps save 0.076 kg of CO2 compared to new production, contributing to a more sustainable industrial practice.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What are the lubrication requirements for the K 40X45X27?

This bearing assembly requires proper lubrication with either oil or grease, depending on the operational speed and temperature. For high-speed applications, oil lubrication is generally recommended. Always refer to the machine’s maintenance manual for specific lubricant types.

Can this needle cage be used without hardened inner and outer raceways?

No, for optimal performance and to achieve the specified load ratings and service life, the shaft and housing bore that serve as raceways must be hardened (typically 58 to 64 HRC) and precision-ground.

What is the significance of the ‘C3’ in the part number KT404527C3?

The ‘C3’ suffix typically denotes a radial internal clearance that is greater than normal. This is often required in applications with tight fits, significant temperature gradients, or shaft deflection to prevent preloading of the bearing.

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Last Update: Friday, March 13, 2026