726AC
Miniature Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
726AC
Basic Information
System of measurement
Metric
Weight
0.0081 kg
ABEC rating
P5(ABEC-5),P4(ABEC-21)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
6 mm
Outside diameter
19 mm
Width
6 mm
Contact angle
25 °
Performance
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Preload
Available
Materials
Ball material
Steel,Ceramic
Cage material
Nylon,Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
726AC Bearing Product Overview & Core Advantages
The 726AC is a metric precision angular contact ball bearing engineered for applications requiring exceptional rotational accuracy and rigidity. This double row angular contact ball bearing is designed to accommodate combined loads—simultaneously handling significant radial and bidirectional axial loads. Its compact design, with a 6mm bore and 19mm outside diameter, makes it ideal for space-constrained, high-precision assemblies. Available in both sealed and open configurations, and with options for steel or ceramic balls, it offers versatility for demanding high-speed and high-reliability applications.
726AC Bearing Model Code Explained, Specifications & Naming Convention
The 726AC model number and its available suffixes indicate specific technical features:
- 726: Basic series designation, indicating the boundary dimensions (6x19x6mm).
- AC: Angular Contact, defining the bearing type and its 25° contact angle.
- Seal Type: Options include Sealed (for contaminant exclusion) and Open (for custom lubrication regimes).
- Preload: Available, allowing for controlled internal clearance to enhance system rigidity and precision.
- SU: Universal Matchable, meaning bearings can be paired in any combination for duplex sets.
- Ball Material: Steel (standard) or Ceramic (for higher speed and reduced weight).
- Cage Material: Nylon or Phenolic, contributing to quiet operation and reduced friction.
- ABEC Rating: P5 (ABEC-5) or P4 (ABEC-7), denoting very high and ultra-precision tolerance classes.
726AC Bearing Structural Features & Performance Benefits
The design of the 726AC translates directly into superior performance:
- High Rigidity & Load Capacity: The double row ball complement and the 25° contact angle provide a stiff bearing arrangement capable of supporting substantial combined loads from multiple directions.
- Precision & High-Speed Performance: Manufactured to ABEC P5/P4 standards, it ensures minimal runout and smooth operation. The lightweight Nylon or Phenolic cage is optimized for high-speed applications, reducing centrifugal forces and allowing for higher limiting speeds.
- Versatility & Longevity: The availability of sealed versions with factory lubrication offers a maintenance-free, long-service-life solution. The universal matchable (SU) feature provides design flexibility for creating preloaded bearing sets.
726AC Bearing Typical Application Areas
The 726AC precision bearing is ideally suited for:
- Machine Tool Spindles
- High-Speed Dental Handpieces
- Precision Instrumentation and Encoders
- Small High-Performance Electric Motors
- Robotic Drives and Actuators
