Angular Contact Ceramic Ball Bearing H7010C-2RZ HQ1

The H7010C-2RZ HQ1 is a high-performance hybrid angular contact ball bearing engineered for demanding industrial environments requiring extreme precision and speed. By integrating aerospace-grade Silicon Nitride (Si3N4) ceramic balls with precision-ground steel rings, this bearing achieves a grease-lubricated limiting speed of 29,500 RPM. The 50mm bore and 80mm outside diameter make it a robust choice for medium-to-large CNC spindles and robotic joints. Ceramic balls are 58% lighter than steel, significantly reducing centrifugal forces and internal heat generation at high velocities. Certified to P4/HQ1 precision standards, this bearing offers unmatched thermal stability, low vibration, and natural electrical insulation for sensitive high-speed rotating equipment.

Hybrid Silicon Nitride (Si3N4) Ball technology
50mm Bore x 80mm OD x 16mm Width
High-speed limiting speed (29,500 RPM)
Precision P4 Grade for minimal runout
15.4 KN Basic Dynamic Load capacity
High-efficiency 2RZ non-contact shielding

⚡ 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 0.24 kg \| sealingType: 2RZ (Non-contact) \| precisionClass: P4 / HQ1
INSIDE DIAMETER	50 mm
OUTSIDE DIAMETER	80 mm
WIDTH DIMENSION	16 mm
MAX SPEED GREASE	29500 RPM
BASIC LOAD RATING CR	15.4 KN
BASIC LOAD RATING COR	12 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
High-Speed Industrial CNC Spindles	Machine Tool Manufacturing
Precision Robotics and Automation Systems	Industrial Automation and Robotics
Aerospace Rotating Components	Aerospace and Defense Engineering
Performance Automotive Powertrains	Automotive and Motorsport
High-Frequency Electric Motors	Precision Research and Development
Advanced Scientific Instrumentation	General Engineering

Technical FAQ & Operational Guide

What is the limiting speed of the H7010C-2RZ HQ1?

This hybrid ceramic bearing is rated for a limiting speed of up to 29,500 RPM when used with high-speed grease lubrication.

How do ceramic balls improve performance in a 50mm bearing?

In 50mm shafts, rotational mass becomes significant. Ceramic balls (Si3N4) are much lighter than steel, which minimizes centrifugal loading and heat build-up, allowing for 20-30% higher speeds and better stability.

Does this bearing provide electrical insulation?

Yes. Silicon Nitride ceramic is naturally non-conductive, making this bearing excellent for electric spindles where it prevents electrical pitting caused by stray currents.

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 H7010C-2RZ HQ1

Hybrid Silicon Nitride (Si3N4) Ball technology

50mm Bore x 80mm OD x 16mm Width

High-speed limiting speed (29,500 RPM)

Precision P4 Grade for minimal runout

15.4 KN Basic Dynamic Load capacity

High-efficiency 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

50 mm

OUTSIDE DIAMETER

80 mm

WIDTH DIMENSION

16 mm

MAX SPEED GREASE

29500 RPM

BASIC LOAD RATING CR

15.4 KN

BASIC LOAD RATING COR

12 KN

BEARING TYPE

Angular Contact Hybrid Ceramic

BALL MATERIAL

Silicon Nitride (Si3N4)

RING MATERIAL

High-Carbon Chrome Steel (GCR15)

Usage Scenario

Target Industry

High-Speed Industrial CNC Spindles

Machine Tool Manufacturing

Precision Robotics and Automation Systems

Industrial Automation and Robotics

Aerospace Rotating Components

Aerospace and Defense Engineering

Performance Automotive Powertrains

Automotive and Motorsport

High-Frequency Electric Motors

Precision Research and Development

Advanced Scientific Instrumentation

General Engineering