HCB7018-C-T-P4S-UL Hybrid Ceramic Bearing_Ball Bearing,Roller Bearing,Pillow Block Bearing

HCB7018-C-T-P4S-UL Hybrid Ceramic Bearing

Brand	=	SEMRI
Manufacturer Part Number	=	HCB7018-C-T-P4S-UL
Inside Diameter	=	90mm
Outside Diameter	=	140mm
Width	=	24mm
Contact Angle	=	15°
Precision Grade	=	P4S
Seals or Shields	=	None
Material	=	Hybrid Ceramic
Clearance	=	CN = Standard Internal clearance
Cage Type	=	T = Outerring Guided Phenolic Cage

Core Applications

1. Machine Tool Spindles

This is the most common application. It acts as the core rotational support in:

High-Speed CNC Milling Machines & Machining Centers: Provides rigid and precise radial/axial support during high-speed cutting
CNC Engraving and Routing Machines: Perfect for mold-making where high RPMs and minimal vibration are required to prevent tool marks.
Precision Grinding Spindles: Internal grinding heads require absolute rotational accuracy to achieve flawless workpiece surface finishes.

2. Semiconductor & Optical Manufacturing Equipment

Silicon Wafer Dicing Saws: Precision dicing requires sub-micron spindle runout. The HCB7018 maintains extreme rigidity and low thermal expansion at high speeds.
Optical Lens Grinding / Fly-cutting Spindles: Ensures flawless surface reflectivity and precise geometries on optical components.

3. Vacuum Systems & High-Speed Testing

Turbo-molecular Vacuum Pumps: Used in semiconductor processing environments. Ceramic balls prevent cold welding (seizure) in high-vacuum conditions and provide electrical insulation.

Dynamic Balancing Machines: Supports high-speed rotors during balance testing with minimal friction interference.

4. Advanced High-Speed Turbomachinery

Micro Gas Turbines & Turbochargers: Used in experimental or niche high-speed turbo systems where low heat generation and high rotational speeds are paramount.