Angular Contact Ceramic Ball Bearing H7000C-2RZ HQ1

The Angular Contact Ceramic Ball Bearing H7000C-2RZ HQ1 is the pinnacle of high-speed spindle technology. Engineered with Silicon Nitride (Si3N4) ceramic balls and high-carbon steel rings, this hybrid bearing is designed to operate at an incredible grease-lubricated speed of 106,700 RPM. The ceramic balls are 40% less dense than steel, significantly reducing centrifugal force and internal friction. This results in cooler operating temperatures, minimal thermal expansion, and a vastly extended service life compared to traditional steel bearings, making it ideal for ultra-precision dental, aerospace, and micro-machining spindles.

High-performance Si3N4 Ceramic Ball construction
10mm Bore x 26mm OD x 8mm Width
2RZ non-contact seals for ultra-high-speed protection
Optimized contact angle for precision load distribution
Extreme limiting speed (106,700 RPM)
Lightweight hybrid design (approx 0.02 kg)

⚡ 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 seal) \| precisionClass: P4 / HQ1
INSIDE DIAMETER	10 mm
OUTSIDE DIAMETER	26 mm
WIDTH DIMENSION	8 mm
MAX SPEED GREASE	106700 RPM
BASIC LOAD RATING CR	3.4 KN
BASIC LOAD RATING COR	1.5 KN
BEARING TYPE	Angular Contact Hybrid Ceramic
BALL MATERIAL	Silicon Nitride (Si3N4) Ceramic
RING MATERIAL	High-Carbon Chrome Steel

Industrial Applications

Usage Scenario	Target Industry
Ultra-High Speed CNC Spindles	Medical and Dental Technology
Dental Handpieces and Medical Drills	Precision Micro-Machining
Aerospace Gyroscopes and Instruments	Aerospace and Defense
Precision Grinding and Micro-Milling	High-End Automotive Racing
High-Frequency Electric Motors	Electronics Manufacturing
Semiconductor Processing Equipment	General Engineering

Technical FAQ & Operational Guide

What is the speed limit for the H7000C-2RZ HQ1 ceramic bearing?

This bearing is capable of operating at speeds up to 106,700 RPM with grease lubrication, significantly exceeding the limits of all-steel bearings.

What are the benefits of ceramic balls over steel balls?

Ceramic balls (Si3N4) are lighter, harder, and have lower thermal expansion. This allows for higher RPM, less heat generation, and longer life in high-speed applications.

Is this bearing suitable for dental equipment?

Yes, its extreme speed capability and small footprint make it a preferred choice for precision dental handpieces and medical drilling tools.

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 H7000C-2RZ HQ1

High-performance Si3N4 Ceramic Ball construction

10mm Bore x 26mm OD x 8mm Width

2RZ non-contact seals for ultra-high-speed protection

Optimized contact angle for precision load distribution

Extreme limiting speed (106,700 RPM)

Lightweight hybrid design (approx 0.02 kg)

⚡ 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 seal) | precisionClass: P4 / HQ1

INSIDE DIAMETER

10 mm

OUTSIDE DIAMETER

26 mm

WIDTH DIMENSION

8 mm

MAX SPEED GREASE

106700 RPM

BASIC LOAD RATING CR

3.4 KN

BASIC LOAD RATING COR

1.5 KN

BEARING TYPE

Angular Contact Hybrid Ceramic

BALL MATERIAL

Silicon Nitride (Si3N4) Ceramic

RING MATERIAL

High-Carbon Chrome Steel

Usage Scenario

Target Industry

Ultra-High Speed CNC Spindles

Medical and Dental Technology

Dental Handpieces and Medical Drills

Precision Micro-Machining

Aerospace Gyroscopes and Instruments

Aerospace and Defense

Precision Grinding and Micro-Milling

High-End Automotive Racing

High-Frequency Electric Motors

Electronics Manufacturing

Semiconductor Processing Equipment

General Engineering