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Timken 2MM9113WI is a super precision angular contact ball bearing (P4S) designed for high-speed machine tool spindles and precision applications. It features a phenolic outer land riding cage (CR) for reduced friction and heat generation. With a dynamic load rating of 8950 lbf and a static load rating of 7330 lbf, this bearing provides the rigidity and accuracy required for ABEC 7/9 precision class equipment.
MODEL 2MM9113WI
$455.59 Each
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Returnable: Yes
Ball diameter
0.406250 in
Ball type
Steel
Bearing width
0.7087 in
Cage type
CR - Phenolic Outer Land Riding Cage
Contact angle
15 °
Design units
METRIC
Dynamic radial rating
8950 lbf
I.D.
2.5591 in
Inner ring "to clear" radius
0.039 in
Inner ring backing diameter
2.840 in
Limiting speed (grease)
12700 rpm
Limiting speed (oil)
25400 rpm
O.D.
3.9370 in
Outer ring "to clear" radius
0.039 in
Outer ring backing diameter
3.670 in
Precision class
ISO P4S (ABEC 7/9)
Static radial rating
7330 lbf
Single Row Angular Contact Bearings The Timken (Fafnir) 2MM9113WI Ball P4S Super Precision Bearing is engineered for optimal performance in high-speed applications, ensuring longevity and reliability in demanding environments. This super precision bearing is designed to meet the rigorous demands of various industries, including automotive, aerospace, and industrial machinery. ## Key Features • **Precision Grade:** P4S rating provides superior accuracy and performance, ensuring minimal running clearances and high rotational precision. • **Ball Material:** Crafted with high-quality chrome steel for enhanced hardness and resistance to wear, contributing to a longer lifespan. • **Contact Angle:** Designed with an angular contact configuration, allowing for higher load capacities and improved axial load handling. • **Dimensions:** Inner diameter of 65 mm, outer diameter of 100 mm, and a width of 18 mm, providing a compact solution for space-constrained applications. • **Lubrication:** Features optimized grease lubrication for reduced friction and heat generation, enhancing overall efficiency. ## Applications • **High-Speed Machinery:** Ideal for high-speed spindles and precision tooling where accuracy is critical. • **Aerospace Components:** Perfect for applications requiring stringent performance standards and reliability under extreme conditions. • **Industrial Automation:** Compatible with automated systems needing dependable motion solutions for efficient operation. ## Benefits • **Enhanced Performance:** The P4S precision rating ensures high-speed capabilities and reduces vibration, leading to improved machine performance. • **Durability:** With superior materials and design, the bearing offers resistance to wear and operational fatigue, reducing maintenance needs. • **Efficiency:** Optimized for low friction, this bearing contributes to energy savings and extended equipment life through reduced heat generation. --- *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.
| Brand | MROSupply Fasteners |
| Model | FSTPCK-772276 |
SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read more