Angular Contact Steel Ball Bearing 7002C-2RZ DBB

The Angular Contact Steel Ball Bearing 7002C-2RZ DBB is a precision-engineered component designed to handle demanding industrial conditions. With an inside diameter of 15mm and an ultra-high limiting speed of 68100 RPM (grease), this bearing is optimized for high-speed CNC machines and robotic arm joints. Made from high-grade hardened steel, it provides exceptional durability and rigidity while supporting both radial and axial loads. The 2RZ non-contact seals ensure low friction and protection against contaminants without sacrificing speed.

High-speed 7002C series steel balls
Optimized contact angle for axial/radial load support
Non-contact 2RZ seals for thermal stability
Precision ground steel rings for low runout
Compact 15x32x9mm design for space-sensitive integrations
High-precision DBB configuration compatibility

⚡ 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: 2.2 kg \| sealingType: 2RZ (Non-contact seal) \| precisionClass: P4 / DBB
INSIDE DIAMETER	15 mm
OUTSIDE DIAMETER	32 mm
WIDTH DIMENSION	9 mm
MAX SPEED GREASE	68100 RPM
BASIC LOAD RATING CR	4.4 KN
BASIC LOAD RATING COR	2.2 KN
BEARING TYPE	Angular Contact Steel Ball
BALL MATERIAL	High-Carbon Steel
RING MATERIAL	Hardened Chrome Steel

Industrial Applications

Usage Scenario	Target Industry
High-Speed CNC Spindles	Automotive Manufacturing
Industrial Robotics and Automation	Aerospace & Defense
Automotive Precision Components	CNC Machinery Builders
High-Speed Electric Motors	Robotics & Mechatronics
Machine Tool Rotating Assemblies	Precision Engineering Workshops
Precision Laboratory Equipment	General Engineering

Technical FAQ & Operational Guide

What is the limiting speed for the 7002C-2RZ DBB bearing?

This bearing is designed for extreme high-speed applications, featuring a limiting speed of 68100 RPM with grease lubrication.

Can this bearing handle both axial and radial loads?

Yes, its angular contact design allows it to support both radial and axial loads simultaneously, making it highly versatile for spindle applications.

What does the 2RZ designation indicate?

2RZ refers to non-contact seals on both sides of the bearing, which protect the internal components from dust while allowing for ultra-high speeds without generating excessive heat.

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 Steel Ball Bearing 7002C-2RZ DBB

High-speed 7002C series steel balls

Optimized contact angle for axial/radial load support

Non-contact 2RZ seals for thermal stability

Precision ground steel rings for low runout

Compact 15x32x9mm design for space-sensitive integrations

High-precision DBB configuration compatibility

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

INSIDE DIAMETER

15 mm

OUTSIDE DIAMETER

32 mm

WIDTH DIMENSION

9 mm

MAX SPEED GREASE

68100 RPM

BASIC LOAD RATING CR

4.4 KN

BASIC LOAD RATING COR

2.2 KN

BEARING TYPE

Angular Contact Steel Ball

BALL MATERIAL

High-Carbon Steel

RING MATERIAL

Hardened Chrome Steel

Usage Scenario

Target Industry

High-Speed CNC Spindles

Automotive Manufacturing

Industrial Robotics and Automation

Aerospace & Defense

Automotive Precision Components

CNC Machinery Builders

High-Speed Electric Motors

Robotics & Mechatronics

Machine Tool Rotating Assemblies

Precision Engineering Workshops

Precision Laboratory Equipment

General Engineering