Angular Contact Ceramic Ball Bearing H7009C-2RZ HQ1

The H7009C-2RZ HQ1 is a high-performance hybrid angular contact ball bearing designed for advanced spindle systems requiring exceptional speed and thermal stability. By pairing high-carbon chrome steel rings with aerospace-grade Silicon Nitride (Si3N4) ceramic balls, this bearing reaches a limiting speed of 33,000 RPM with grease lubrication. The ceramic balls provide a 58% reduction in density compared to steel, drastically lowering centrifugal forces and internal heat generation during operation. With a 45mm bore and 75mm outside diameter, it offers a robust dynamic load rating of 13.1 KN. This P4 precision grade bearing is specifically engineered for high-precision CNC machining, industrial robotics, and aerospace components where durability, high-speed consistency, and electrical insulation are mandatory.

Hybrid Silicon Nitride (Si3N4) Ball technology
45mm Bore x 75mm OD x 16mm Width
High-speed limiting speed (33,000 RPM)
P4 Grade precision for machining excellence
13.1 KN Basic Dynamic Load rating
Friction-reducing 2RZ non-contact shielding

⚡ Quick Technical Datasheet:

Power OutputN/A

Max SpeedN/A

Voltage RatingN/A

Collet InterfaceER Standard

Shop Now

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 0.24 kg \| sealingType: 2RZ (Non-contact) \| precisionClass: P4 / HQ1
INSIDE DIAMETER	45 mm
OUTSIDE DIAMETER	75 mm
WIDTH DIMENSION	16 mm
MAX SPEED GREASE	33000 RPM
BASIC LOAD RATING CR	13.1 KN
BASIC LOAD RATING COR	10.2 KN
BEARING TYPE	Angular Contact Hybrid Ceramic
BALL MATERIAL	Silicon Nitride (Si3N4)
RING MATERIAL	High-Carbon Chrome Steel (GCR15)

Industrial Applications

Usage Scenario	Target Industry
Precision CNC Machine Spindles	Precision Machine Tooling
Industrial Robotics and Automation Systems	Automotive and Aerospace
High-Frequency Motors and Blowers	Robotics and Advanced Automation
Automotive Turbochargers and Performance Engineering	Medical Technology Manufacturing
Aerospace Rotating Components	General Industrial Engineering
Medical and Dental Machining Equipment	General Engineering

Technical FAQ & Operational Guide

What is the limiting speed of the H7009C-2RZ HQ1 with grease?

This hybrid ceramic bearing is rated for a limiting speed of up to 33,000 RPM when used with high-speed grease lubrication.

How do ceramic balls improve bearing performance?

Ceramic balls (Si3N4) are harder, smoother, and much lighter than steel. They generate 40% less heat, reduce centrifugal force at high speeds, and are naturally resistant to corrosion and electrical conductivity.

What does the 2RZ seal do?

The 2RZ refers to double non-contact seals. They provide a barrier against dust and contaminants while allowing the bearing to reach its maximum RPM without the friction and heat of a standard contact seal.

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.

Request Quote

Share your requirements, and we’ll provide a tailored quote.

Please wait...

Angular Contact Ceramic Ball Bearing H7009C-2RZ HQ1

Hybrid Silicon Nitride (Si3N4) Ball technology

45mm Bore x 75mm OD x 16mm Width

High-speed limiting speed (33,000 RPM)

P4 Grade precision for machining excellence

13.1 KN Basic Dynamic Load rating

Friction-reducing 2RZ non-contact shielding

⚡ 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 0.24 kg | sealingType: 2RZ (Non-contact) | precisionClass: P4 / HQ1

INSIDE DIAMETER

45 mm

OUTSIDE DIAMETER

75 mm

WIDTH DIMENSION

16 mm

MAX SPEED GREASE

33000 RPM

BASIC LOAD RATING CR

13.1 KN

BASIC LOAD RATING COR

10.2 KN

BEARING TYPE

Angular Contact Hybrid Ceramic

BALL MATERIAL

Silicon Nitride (Si3N4)

RING MATERIAL

High-Carbon Chrome Steel (GCR15)

Usage Scenario

Target Industry

Precision CNC Machine Spindles

Precision Machine Tooling

Industrial Robotics and Automation Systems

Automotive and Aerospace

High-Frequency Motors and Blowers

Robotics and Advanced Automation

Automotive Turbochargers and Performance Engineering

Medical Technology Manufacturing

Aerospace Rotating Components

General Industrial Engineering

Medical and Dental Machining Equipment

General Engineering