SKF BTW 55 CATN9/SP thrust ball bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Thrust ball bearings
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Description
SKF BTW 55 CATN9/SP belongs to thrust ball bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for BTW 55 CATN9/SP and any equivalents.
The SKF BTW series thrust ball bearing is built for axial loads in one direction, with the capacity and rigidity needed for precise positioning and preload. You will find it in machine tool spindles, rotary tables and similar assemblies where axial stiffness and smooth running matter. The single-row ball design and hardened steel rings support high speeds.
Reading the designation helps you match the bearing to the job. BTW identifies the high-precision thrust ball bearing series. The number after it is the bore in millimeters: BTW 55 CATN9/SP has a 55 mm bore, BTW 80 CATN9/SP has an 80 mm bore, and BTW 90 CATN9/SP has a 90 mm bore. CATN9 covers internal design and tolerance characteristics, while /SP marks a special precision execution.
Typical applications include milling and grinding machines, coordinate tables, measuring equipment and high-speed spindles. Robotics and positioning systems that need smooth, repeatable movement also use this type. Because the bearing takes axial loads in one direction, it suits assemblies that call for axial rigidity and rotational precision.
Selection depends on the axial load, rotation speed and lubrication conditions. Assembly requires precise alignment between shaft and housing, as these bearings are sensitive to misalignment. Use high-quality oil or grease, and check that axial clearance matches the application. Sealing depends on the environment; contaminated areas may need extra protection. Preload is set through the assembly design.
For interchangeability, SKF BTW series thrust ball bearings can be replaced by products from other manufacturers that follow the same dimensions and tolerances. Verify bore diameter, outer diameter and height before committing. Alternatives exist from brands such as FAG, NSK or NTN, but always confirm against the manufacturer's data sheet.
To get a quote, send the complete part number by WhatsApp or email, for example BTW 55 CATN9/SP. We supply customers across the United States and in several Latin American countries, and our team can suggest equivalents and help you choose.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does the CATN9/SP suffix mean in BTW bearings?
- CATN9 refers to internal design, tolerances and internal clearance, while /SP indicates a special precision execution. Consult the manufacturer's data sheet or contact us for details.
- Where are BTW thrust ball bearings used?
- They are used where axial loads must be carried with high precision, such as machine tool spindles, rotary tables, measuring equipment and positioning systems.
- How do I choose the right BTW bearing for my machine?
- Consider the axial load, rotation speed and lubrication conditions, and verify the shaft and housing dimensions. Send us your application data by WhatsApp and we will advise you.