Angular Contact Steel Ball Bearing 7009C-2RZ DBB

The Angular Contact Steel Ball Bearing 7009C-2RZ DBB is meticulously designed for high-precision, high-speed applications. With an inside diameter of 45mm and an outside diameter of 75mm, this bearing provides superior strength and reliability in demanding mechanical systems. It is engineered to withstand combined radial and axial loads, making it an essential component for CNC spindle assemblies and robotics. The non-contact 2RZ seals ensure efficient operation at speeds up to 24600 RPM without excessive heat buildup, ensuring long-term accuracy in industrial environments.

High-strength hardened steel ball construction
45mm Bore x 75mm OD x 16mm Width
2RZ non-contact seals for high-speed performance
Optimized contact angle for uniform load distribution
High limiting speed (24600 RPM)
Low vibration and noise for precision applications

⚡ 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 0.245 kg \| sealingType: 2RZ (Non-contact seal) \| precisionClass: P4 / DBB
INSIDE DIAMETER	45 mm
OUTSIDE DIAMETER	75 mm
WIDTH DIMENSION	16 mm
MAX SPEED GREASE	24600 RPM
BASIC LOAD RATING CR	15.4 KN
BASIC LOAD RATING COR	12 KN
BEARING TYPE	Angular Contact Steel Ball
BALL MATERIAL	Hardened Chrome Steel
RING MATERIAL	High-Carbon Steel

Industrial Applications

Usage Scenario	Target Industry
High-Speed CNC Spindle Units	Machine Tool Manufacturing
Industrial Robotics and Automated Systems	Automotive Production
Precision Lathes and Milling Centers	Industrial Automation
High-Performance Electric Motors	Aerospace and Defense
Aerospace Mechanical Components	Electronics Manufacturing
Automotive Production Equipment	General Engineering

Technical FAQ & Operational Guide

What is the speed limit for the 7009C-2RZ DBB bearing?

The bearing is capable of operating at speeds up to 24600 RPM when using grease lubrication, thanks to its precision design and 2RZ non-contact seals.

Does this bearing support combined axial and radial loads?

Yes, its angular contact construction is specifically optimized to handle both radial and axial loads simultaneously, ensuring stability in mechanical systems.

What are the dimensions of this bearing?

The 7009C-2RZ DBB has an inside diameter of 45mm, an outside diameter of 75mm, and a width of 16mm.

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 Steel Ball Bearing 7009C-2RZ DBB

High-strength hardened steel ball construction

45mm Bore x 75mm OD x 16mm Width

2RZ non-contact seals for high-speed performance

Optimized contact angle for uniform load distribution

High limiting speed (24600 RPM)

Low vibration and noise for precision applications

⚡ 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 0.245 kg | sealingType: 2RZ (Non-contact seal) | precisionClass: P4 / DBB

INSIDE DIAMETER

45 mm

OUTSIDE DIAMETER

75 mm

WIDTH DIMENSION

16 mm

MAX SPEED GREASE

24600 RPM

BASIC LOAD RATING CR

15.4 KN

BASIC LOAD RATING COR

12 KN

BEARING TYPE

Angular Contact Steel Ball

BALL MATERIAL

Hardened Chrome Steel

RING MATERIAL

High-Carbon Steel

Usage Scenario

Target Industry

High-Speed CNC Spindle Units

Machine Tool Manufacturing

Industrial Robotics and Automated Systems

Automotive Production

Precision Lathes and Milling Centers

Industrial Automation

High-Performance Electric Motors

Aerospace and Defense

Aerospace Mechanical Components

Electronics Manufacturing

Automotive Production Equipment

General Engineering