Timken 31308 Tapered Roller Bearing

Description

The Timken 31308 is a high-quality single-row tapered roller bearing designed for precision and durability. Its tapered design allows it to handle both radial and axial loads simultaneously, making it ideal for a variety of demanding industrial applications. This bearing ensures low friction and long service life, contributing to efficient and reliable machinery operation.

Specifications

• Manufacturer: Timken
• Model: 31308
• Type: Tapered Roller Bearing
• Bore Diameter (d): 40 mm
• Outside Diameter (D): 90 mm
• Total Width (T): 25.25 mm
• Material: High-grade bearing steel

Label Info

• Part Number: 31308-90KA1
• EAN: 053893804972
• Markings: X31308, ISOCLASS, CV

Application

This bearing is commonly used in applications such as automotive wheel hubs, industrial gearboxes, agricultural machinery, and various power transmission systems where combined loads are present.

Country of Origin

Made in France.

CO2 Impact

By purchasing this reconditioned part, you contribute to a circular economy and avoid the emission of approximately 1.5 kg of CO2. This is comparable to the savings from driving a car for 7.5 kilometers.

Availability

This item is in new condition, comes in its original packaging (opened for pictures), and is available for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

What is the significance of the 'ISOCLASS' marking?

'ISOCLASS' refers to the tolerance class of the bearing, indicating its dimensional and running accuracy according to ISO standards. This ensures interchangeability and precise fitting.

Is this bearing pre-lubricated or does it require initial greasing?

Tapered roller bearings like the 31308 are typically shipped with a preservative oil coating to prevent rust. They are not pre-lubricated for operation and must be cleaned and lubricated with the appropriate grease or oil upon installation.

What is the correct procedure for mounting a tapered roller bearing?

Mounting involves pressing the cone (inner ring assembly) onto the shaft and the cup (outer ring) into the housing. It is critical to apply pressure only to the face of the ring being mounted and to set the correct preload or end-play to ensure optimal performance and bearing life.

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Last Update: Friday, March 13, 2026