Angular Contact Ceramic Ball Bearing H7001C-2RZ HQ1

The H7001C-2RZ HQ1 is an advanced hybrid angular contact ball bearing engineered for high-frequency spindle applications. By combining high-carbon chrome steel rings with aerospace-grade Silicon Nitride (Si3N4) ceramic balls, this bearing achieves a limiting speed of 96,000 RPM with grease lubrication. The ceramic ball material offers superior hardness and significantly lower thermal expansion than steel, resulting in reduced friction, lower operating temperatures, and increased stiffness. With a 12mm bore and 28mm outside diameter, it provides a slightly higher load rating (3.8 KN Basic Dynamic Load) than its H7000 counterparts, making it ideal for precision routers and high-speed dental tools.

Hybrid design with Silicon Nitride (Si3N4) Ceramic Balls
12mm Bore x 28mm OD x 8mm Width
High-speed 2RZ non-contact shielding
96,000 RPM Grease Limiting Speed
Increased 3.8 KN Dynamic Load Rating
Advanced P4 Grade precision for spindle accuracy

⚡ Quick Technical Datasheet:

Power OutputN/A

Max SpeedN/A

Voltage RatingN/A

Collet InterfaceER Standard

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Comparative Technical Spindle Motor Configurations Matrix

Use the structural data catalog matrix below to evaluate power outputs, maximum RPM, operating voltages, and cooling styles across standard TriQuench CNC spindle models.

Spindle Capacity	Operating Speed	Operating Voltage	Cooling System
12.0 kW	18,000 RPM	380 V	Water-Cooled
0.8 kW	24,000 RPM	220 V	Air-Cooled (Long Shaft)
3.7 kW	40,000 RPM	380 V	Water-Cooled ISO20
9.0 kW	18,000 RPM	380 V	Air-Cooled

Technical Specifications

Technical Parameter	Engineering Specification Value
MECHANICAL	weight: approx 0.02 kg \| sealingType: 2RZ (Non-contact) \| precisionClass: P4 / HQ1
INSIDE DIAMETER	12 mm
OUTSIDE DIAMETER	28 mm
WIDTH DIMENSION	8 mm
MAX SPEED GREASE	96000 RPM
BASIC LOAD RATING CR	3.8 KN
BASIC LOAD RATING COR	1.7 KN
BEARING TYPE	Angular Contact Hybrid Ceramic
BALL MATERIAL	Silicon Nitride (Si3N4)
RING MATERIAL	Chrome Steel (GCR15)

Industrial Applications

Usage Scenario	Target Industry
High-Frequency Electric Spindles	Precision Engineering and Tooling
Precision Dental and Surgical Tools	Medical and Dental Equipment Manufacturing
CNC Router and Engraving Spindles	Aerospace and Defense
Aerospace Gyroscopes and Centrifuges	Semiconductor Manufacturing
Vacuum Pumps and Turbochargers	High-End Automotive Engineering
Micro-Machining Tool Holders	General Engineering

Technical FAQ & Operational Guide

What is the difference between H7000C and H7001C bearings?

The H7001C has a slightly larger footprint (12mm bore vs 10mm) and offers a higher basic dynamic load rating (3.8 KN vs 3.4 KN) while maintaining ultra-high speed capabilities.

Does this bearing come pre-lubricated?

Yes, it is typically factory-supplied with high-speed grease optimized for the 96,000 RPM limiting speed.

How do 2RZ seals help in high-speed applications?

2RZ are non-contact seals. They provide excellent protection against dust and contaminants without adding friction, allowing the bearing to reach maximum RPM without overheating.

How is the rotational balancing calibrated on this spindle motor?

Every spindle motor is dynamically balanced in accordance with the ISO 1940 balancing standard to guarantee vibration-free running and maximum stability at high RPMs.

What are the runout tolerances of the shaft and collet interface?

The internal shaft taper maintains a runout accuracy tolerance of under 0.003mm (3 microns), maintaining precise tool concentricity and preventing premature cutter wear.

What cooling precautions are built-in to prevent heat exhaustion?

Built-in temperature dissipation channels support continuous water/liquid cooling circulation or forced fan airflow, preventing thermal expansion of components.

Is this spindle motor compatible with standard VFD inverters and collets?

Yes, the spindle supports direct electrical integration with standard variable frequency drives (VFD) and accepts industrial ER collets (ER11, ER20, ER25, or ER32) to match standard toolholder dimensions.

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Angular Contact Ceramic Ball Bearing H7001C-2RZ HQ1

Hybrid design with Silicon Nitride (Si3N4) Ceramic Balls

12mm Bore x 28mm OD x 8mm Width

High-speed 2RZ non-contact shielding

96,000 RPM Grease Limiting Speed

Increased 3.8 KN Dynamic Load Rating

Advanced P4 Grade precision for spindle accuracy

⚡ Quick Technical Datasheet:

Power OutputN/A

Max SpeedN/A

Voltage RatingN/A

Collet InterfaceER Standard

Comparative Technical Spindle Motor Configurations Matrix

Use the structural data catalog matrix below to evaluate power outputs, maximum RPM, operating voltages, and cooling styles across standard TriQuench CNC spindle models.

Spindle Capacity	Operating Speed	Operating Voltage	Cooling System
12.0 kW	18,000 RPM	380 V	Water-Cooled
0.8 kW	24,000 RPM	220 V	Air-Cooled (Long Shaft)
3.7 kW	40,000 RPM	380 V	Water-Cooled ISO20
9.0 kW	18,000 RPM	380 V	Air-Cooled

Technical Parameter

Engineering Specification Value

MECHANICAL

weight: approx 0.02 kg | sealingType: 2RZ (Non-contact) | precisionClass: P4 / HQ1

INSIDE DIAMETER

12 mm

OUTSIDE DIAMETER

28 mm

WIDTH DIMENSION

8 mm

MAX SPEED GREASE

96000 RPM

BASIC LOAD RATING CR

3.8 KN

BASIC LOAD RATING COR

1.7 KN

BEARING TYPE

Angular Contact Hybrid Ceramic

BALL MATERIAL

Silicon Nitride (Si3N4)

RING MATERIAL

Chrome Steel (GCR15)

Usage Scenario

Target Industry

High-Frequency Electric Spindles

Precision Engineering and Tooling

Precision Dental and Surgical Tools

Medical and Dental Equipment Manufacturing

CNC Router and Engraving Spindles

Aerospace and Defense

Aerospace Gyroscopes and Centrifuges

Semiconductor Manufacturing

Vacuum Pumps and Turbochargers

High-End Automotive Engineering

Micro-Machining Tool Holders

General Engineering