B7201-E-2RSD-T-P4S-DUL Spindle Bearing_Ball Bearing,Roller Bearing,Pillow Block Bearing

B7201-E-2RSD-T-P4S-DUL Spindle Bearing
SEMRI B7201-E-2RSD-T-P4S-DUL Spindle Bearing

Brand	=	SEMRI
Manufacturer Part Number	=	B7201-E-2RSD-T-P4S-DUL
Inside Diameter（d）	=	12mm
Outside Diameter（D）	=	32mm
Width（B）	=	10mm
Combined Width (2B)	=	20mm
Contact Angle	=	25°
Precision Grade	=	P4S
Seals or Shields	=	Non Contact Seals
Clearance	=	CN = Standard Internal clearance
Cage Type	=	T = Outerring Guided Phenolic Cage

Key application areas include the following core sectors:
1. Machine Tool Spindles and Accessories: Spindles for small-scale engraving machines and CNC milling/engraving machines (high-speed electric spindles for micro and compact CNC engravers); internal grinding heads (high-speed units demanding exceptional bearing precision and minimal heat generation); and precision indexing heads and CNC rotary tables (for achieving micron-level workpiece positioning).
2. Precision Instruments and Metrology Equipment: Coordinate Measuring Machines (CMMs)—leveraging P4S-grade rotational precision to ensure ultra-high repeatability during measurement arm movement; optical and semiconductor inspection equipment—such as wafer inspection and optical focusing systems requiring silent, vibration-free micro-motion mechanisms; and high-speed balancing machines—providing rotational support for balancing micro-motor rotors and turbines.
3. Semiconductor and Electronics Manufacturing Equipment: Pick-and-place nozzles and precision sliders—serving as critical rotary joints for robotic arms that rapidly pick and place chips; and PCB drilling machines—providing high-speed support for micro-drills (often operating at tens of thousands of RPM) used on printed circuit boards.
4. Automation and Micro-robotics: Precision robot joints—transmission components in collaborative robots or microsurgical robots requiring zero backlash and high rigidity; and micro-servo motors and encoders—minimizing axial and radial runout to significantly enhance feedback signal accuracy.

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