Angular Contact Bearing Pair 7000–7007 ACDBBP4 | P4 Precision

Precision Machine Tool Pairing Angular Contact Bearings – 7000 to 7007 Series ACDBBP4

Upgrade your machinery with these high-precision angular contact ball bearing pairs, available in the full 7000 series range (7000, 7001, 7002, 7003, 7004, 7005, 7006, 7007) in ACDBBP4 specification. Designed for machine tool spindles, CNC equipment, and other high-speed rotating applications, these paired bearings deliver exceptional rigidity, low runout, and superior axial and radial load capacity. Sold as a matched pair for optimal performance and easy installation.

Key Features

• Full 7000 Series Range: Choose from 7000 through 7007 to match your exact spindle or shaft dimensions.
• ACDBBP4 Specification: Angular contact design with 25° contact angle, brass cage, matched pair mounting (DB/DF/DT arrangements), and P4 super-precision tolerance class.
• Bearing Steel Construction: High-grade bearing steel inner and outer races for excellent hardness, wear resistance, and long service life.
• Matched Pairing: Factory-matched pairs ensure uniform preload distribution and precise axial positioning — ideal for high-speed spindle applications.
• High-Speed Capable: Engineered for demanding rotational speeds typical in CNC machining centers, lathes, milling machines, and grinding equipment.
• Low Noise & Vibration: P4 precision class minimises runout and vibration for smooth, consistent operation.
• Versatile Application: Suitable for machine tool spindles, pumps, compressors, and precision industrial equipment.

Specifications

What Are Angular Contact Bearings Used For?

Angular contact ball bearings are specifically designed to handle combined radial and axial loads simultaneously. Their angled contact geometry makes them the go-to choice for high-speed, high-precision spindles in CNC lathes, machining centres, and grinding machines. The P4 tolerance class ensures dimensional accuracy tighter than standard bearings, making these ideal for applications where precision is paramount.

For more information on bearing standards and industrial machinery safety, visit the NIST Manufacturing Portal for relevant technical guidance.

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Frequently Asked Questions

Q: What does the ACDBBP4 designation mean for these angular contact bearings?

A: The ACDBBP4 designation breaks down as follows — AC indicates a 25° contact angle optimised for combined axial and radial loads; DB denotes a back-to-back (O-arrangement) paired mounting configuration; and P4 refers to the super-precision tolerance class, which is tighter than standard P0 and suitable for high-speed, high-accuracy machine tool spindles.

Q: Which bearing size should I choose from the 7000 to 7007 series?

A: Select the bearing number that matches your shaft and housing dimensions. The 7000 series follows a standard bore size progression: for example, 7000 has a 10mm bore, 7001 has a 12mm bore, 7002 has a 15mm bore, 7003 has a 17mm bore, 7004 has a 20mm bore, 7005 has a 25mm bore, 7006 has a 30mm bore, and 7007 has a 35mm bore. Always verify your exact shaft diameter and housing specifications before ordering.

Q: Are these bearings sold individually or as a pair?

A: These angular contact bearings are sold as a matched pair. Factory-matched pairs are important because they ensure consistent preload and load distribution when mounted together in a spindle or shaft assembly, providing better accuracy and longer service life than two separately sourced bearings.

Q: What applications are these machine tool pairing bearings suitable for?

A: These P4-precision angular contact bearing pairs are ideal for CNC machining centre spindles, lathes, milling machines, grinding machines, high-speed pumps, compressors, and any precision industrial application requiring tight tolerances and the ability to handle both axial and radial loads simultaneously.