Designed specifically for miniaturization and high-precision applications.Geometric accuracy of rings and balls can reach ultra-precision grades like ABEC-7(P4)or ABEC-9(P2).Special processes control raceway roundness and surface roughness to achieve very low rotational torque and radial runout.Undergoes strict micro-vibration screening,categorized into different vibration grades(e.g.,Z1,V1).Offers options in both stainless steel and bearing steel;the stainless version provides corrosion resistance,while the bearing steel version offers slightly higher load capacity.Available in open or shielded designs.
An example model is R-1030ZZ.Dimensional tolerances strictly adhere to high-precision grades within ISO standards.Balls are typically G3 or G5 grade ultra-high precision.Stainless steel rings are made from AISI 440C,quenched to a hardness above HRC 58.The cage is precision-machined from phenolic resin laminated fabric tube(yellow)or stamped stainless steel.Shields are made of stainless steel(ZZ).Internal bearing cleanliness is strictly controlled,making it suitable for clean environments.
Used in various high-precision,space-constrained devices such as hard disk drive spindles,micro turbo blowers,rotating parts in fiber optic connectors,guide shafts for precision measuring instruments,dental instruments,gimbal motors for drones,and high-speed motors for model racing cars.Their performance directly impacts the host equipment's accuracy,lifespan,and reliability.
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