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Timken 2MM9108WI is a super precision angular contact ball bearing (P4S class) designed for high-speed, high-rigidity applications such as machine tool spindles and precision grinders. It features a phenolic outer land riding cage (CR type) for reduced friction and heat generation. The bearing has a dynamic load rating of 4920 lbf and a static load rating of 3360 lbf, supporting demanding operational requirements.
MODEL 2MM9108WI
$439.89 Each
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Returnable: Yes
Ball diameter
0.312500 in
Ball type
Steel
Bearing width
0.5906 in
Cage type
CR - Phenolic Outer Land Riding Cage
Contact angle
15 °
Design units
METRIC
Dynamic radial rating
4920 lbf
I.D.
1.5748 in
Inner ring "to clear" radius
0.039 in
Inner ring backing diameter
1.800 in
Limiting speed (grease)
19900 rpm
Limiting speed (oil)
39800 rpm
O.D.
2.6772 in
Outer ring "to clear" radius
0.039 in
Outer ring backing diameter
2.450 in
Precision class
ISO P4S (ABEC 7/9)
Static radial rating
3360 lbf
# Bearings The Timken 2MM9108WI Ball P4S Super Precision Bearing is an exceptionally engineered single row angular contact bearing designed to provide superior performance in demanding applications. This bearing is crafted from high-quality materials, ensuring durability and reliability while offering precise load handling capabilities. ## Key Features • Precision Grade: This bearing is rated P4S, ensuring high precision and performance under high-speed conditions. • Single Row Design: The angular contact design allows for optimal axial and radial load distribution, enhancing overall stability. • Material Composition: Constructed from high-grade steel, providing enhanced resistance to wear and fatigue, ensuring a longer service life. • Sealed Design: Equipped with advanced sealing technology to prevent contamination and retain lubrication, crucial for maintaining performance in harsh environments. • Operating Temperature: Suitable for applications with operating temperatures ranging from -40°C to +150°C, making it versatile for various industrial uses. ## Applications • High-Speed Machinery: Ideal for use in precision equipment such as CNC machines and robotics where accuracy is crucial. • Automotive Applications: Suitable for high-performance automotive components requiring dependable and precise bearings. • Aerospace Industry: Perfect for aerospace applications demanding high reliability and performance under extreme conditions. • Industrial Equipment: Compatible with a wide range of industrial machinery, enhancing operational efficiency and reducing downtime. ## Benefits • Enhanced Reliability: The P4S precision rating ensures superior accuracy and reliability, reducing the risk of failure in critical applications. • Improved Efficiency: Reduced friction and optimized load handling contribute to lower energy consumption, enhancing overall system efficiency. • Long Service Life: Robust construction and sealing technology lead to prolonged bearing life, reducing maintenance costs and downtime. --- Product information compiled with AI assistance for reference purposes.
SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read moreHow do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
What is the difference between deep groove and angular contact ball bearings?
Deep groove ball bearings are the most common type. They’re designed to handle mainly radial loads, but they can also take some axial load in both directions. They’re simple, versatile, and used in everything from motors to conveyors. Angular contact ball bearings are built for combined loads, especially where there’s significant axial force in one direction. They’re often used in pairs and are common in higher precision or higher load applications like pumps and gearboxes. If your load is mostly radial, go deep groove. If axial load matters more, angular contact is usually the better choice.
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SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read more