TIMKEN 30308M 90KM1

Timken 30308M Tapered Roller Bearing

Description

The Timken 30308M is a high-performance, single-row tapered roller bearing designed for precision and durability. It is engineered to handle combined radial and axial loads efficiently. This bearing is part of Timken’s IsoClass series, ensuring globally interchangeable dimensions and high-quality manufacturing standards. The ‘M’ suffix indicates a robust machined brass cage, making it suitable for applications with high speeds and heavy loads.

Specifications

• Inner Diameter (Bore): 40 mm
• Outer Diameter: 90 mm
• Width (T): 25.25 mm
• Cage Material: Machined Brass
• Number of Rows: 1
• Load Direction: Radial and Axial (one direction)

Label Info

• Brand: Timken
• Model: 30308M
• Part Number on Box: 30308M-90KM1
• Country of Origin: Poland

Application

This bearing is commonly used in automotive wheel ends, industrial gearboxes, agricultural machinery, and other power transmission systems where reliability is paramount.

Country of Origin

This product is manufactured in Poland.

CO2 Impact

Choosing this reused component avoids the emission of approximately 1.54 kg of CO2, which is involved in producing a new steel bearing of this size. This saving is comparable to the emissions from driving a standard car for 7 kilometers.

Availability

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

FAQ

What does the ‘M’ suffix in 30308M signify?

The ‘M’ in the Timken 30308M designation indicates a machined brass or bronze cage. This type of cage offers superior strength and performance in demanding applications with high speeds or vibrations compared to standard steel cages.

Is this bearing a matched set, and can I interchange the cup and cone with other 30308 bearings?

Yes, this is a complete bearing assembly, including the cone (inner race with rollers) and the cup (outer race). While the components are manufactured to standard metric dimensions, it is highly recommended to use the supplied cup and cone as a matched set to ensure optimal performance, clearance, and bearing life. Mixing components from different manufacturers or even different production batches is not advised.

What type of lubrication is suitable for the Timken 30308M?

The Timken 30308M is suitable for both grease and oil lubrication. The choice depends entirely on the application’s operating speed, load, and temperature. For most general industrial machinery, a high-quality, lithium-based grease with an NLGI 2 consistency is appropriate. For high-speed or high-temperature applications, oil lubrication may be required. Always consult your machinery’s maintenance manual for specific recommendations.

Last Update: Friday, March 13, 2026

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