7007 CE/P4ATBTB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7007 CE/P4ATBTB
Basic Information
System of measurement
Metric
Weight
0.45 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
62 mm
Outside diameter tolerance
-0.004mm to 0
Width
42 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
5558 lbf
Radial static load rating
4500 lbf
Limiting speed
56 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Triplex Back-to-Back (TBT)
Number of bearings in matched set
3
Universal matching bearing
No (Standard)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
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7007 CE/P4ATBTB Bearing Product Overview & Core Advantages
The **7007 CE/P4ATBTB** is a **super-precision angular contact ball bearing** configured in a **triplex back-to-back (TBT) matched set**. Engineered for the most demanding applications, this pre-assembled set of three bearings delivers exceptional **system rigidity** and **rotational accuracy**. It is designed to handle **combined loads** (radial and axial) simultaneously and is optimized for **high-speed operation**. With a **P4A tolerance class** and a **light preload (Class B)**, it is the ideal solution for spindles and other high-precision machinery requiring maximum performance and stability.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7007 | Basic bearing series and size designation (35mm bore, 62mm OD, 14mm single width). |
| CE | Internal design optimized for **high-speed performance** and low torque. |
| P4A | Indicates a **super-precision tolerance class** (exceeding ABEC 7), ensuring extremely tight dimensional and running accuracy. |
| TBT | Specifies the **matched arrangement** as **Triplex Back-to-Back** (a set of three bearings). |
7007 CE/P4ATBTB Bearing Structural Features & Performance Benefits
- Unmatched Rigidity and Stability: The **triplex back-to-back (TBT) arrangement** creates an extremely rigid bearing system that effectively resists moment loads, making it perfect for applications like machine tool spindles where minimal deflection is critical.
- Super-Precision Performance: Manufactured to **P4A tolerance class**, this bearing guarantees superior running accuracy, low vibration, and consistent performance at high speeds.
- Optimized for High Speeds: The **phenolic resin cage** (specified for the set) is lightweight and robust, contributing to lower centrifugal forces and enabling a high **limiting speed** of 56,000 rpm. The **15° contact angle** provides an excellent balance between radial load capacity and high-speed axial load capability.
- Enhanced Load Capacity: As a matched set of three bearings, the **7007 CE/P4ATBTB** offers a significantly higher **dynamic and static load rating** compared to a single bearing, allowing it to handle heavier **combined loads**.
- Pre-Configured for Immediate Use: The set is supplied with a **light preload (Class B)**, eliminating the need for complex on-site preload adjustment and ensuring optimal performance from installation.
7007 CE/P4ATBTB Bearing Typical Application Areas
This precision bearing set is specifically designed for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing spindles.
- High-Frequency Motors: Spindles for high-RPM electric motors.
- Other Precision Rotary Equipment: Where the highest levels of **rotational accuracy**, **rigidity**, and **speed** are non-negotiable.
