The S9912YMD0408FS0 is a ball bearing featuring a 4mm bore and an 8mm outside diameter, constructed from 440C stainless steel. It is designed to meet ISO 4 tolerances, which are approximately equivalent to ABEC 5 standards. The bearing is lubricated with oil according to MIL-L-6085A specifications. It has a radial play tolerance of 0.005 to 0.013 mm, making it suitable for applications requiring precise movement and minimal friction. The dynamic load rating is 253 N, while the static load rating is 431 N, indicating its capacity to handle both dynamic and static loads effectively. This bearing is appropriate for various engineering applications where durability and reliability are essential.
A bearing is a device that reduces friction between moving components by preventing metal-to-metal contact while assisting components (shafts, axles, and wheels) to freely rotate around a fixed axis, cutting down on heat generation and the amount of energy that is consumed. By replacing sliding motion with low-friction rolling motion, the life of the rotating components is increased. A bearing also keeps the shaft in the proper position, providing support and alignment and transferring the axial or radial loads to the housing.
The types of bearings that we offer include rolling element bearings, which consist of both ball bearings and roller bearings.
Balls are utilized as the rolling element in ball bearings; a retainer holds the balls in place and allows them to freely rotate. The balls are kept inside channels cut in both the inner and outer races. Because there is no surface contact between the balls and races, precision ball bearings have a lower load capacity for their size than other bearings.
| Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|
| Product Category | Ball Bearings |
| Product Number | S9912YMD0408FS0 |
| Product Name | 4mm Bore, 8mm Outside Dia., 440C Stainless / ISO 4 Ball bearing, Lube With Oil (MIL-L-6085A) |
| Application | Pump |
| Material / Plating | Stainless Steel |
| Bearing Class | 440C Stainless / ISO 4 |
| Features | Flanged |
| Design Units | Metric |
