SKF BTW 75 CTN9/SP thrust ball bearing

SKF BTW 75 CTN9/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 75 CTN9/SP and any equivalents.

For machine tool ball screws and other setups that need axial rigidity and accurate rotation, the SKF BTW CTN/SP series of precision thrust ball bearings is built to handle axial loads in both directions. MR Industrial Accessories supplies these bearings as part of its SKF line, and can help you confirm the right model for your assembly.

Reading the part number helps you match a bearing to the application. BTW is the precision thrust ball bearing series. The number that follows is the shaft diameter in millimeters, such as 40, 45 or 50. CTN describes design details, including cage type and ball arrangement, and the digit after it (9 in these examples) can indicate a construction variant. The /SP suffix marks special precision, with tolerances tighter than a standard bearing. So a BTW 40 CTN9/SP is a thrust ball bearing for a 40 mm shaft, with CTN9 design and SP precision.

These bearings are common in machine tool ball screws on milling machines, grinding machines and machining centers, where axial rigidity and rotational accuracy matter. They also appear in rotary tables, drill heads and similar mechanisms that must take axial loads in both directions with low friction. Metalworking, automotive and capital goods operations rely on them where dimensional accuracy and repeatability affect machining quality.

When selecting a bearing, review the axial load, the rotational speed and the precision level required. The BTW CTN/SP series suits assemblies where axial clearance must stay minimal, so check preload and fit during mounting. Use lubrication suited to high speeds, typically a quality grease or oil, and keep the shaft and housing aligned to avoid parasitic loads that shorten service life. Clean assembly with the correct tools supports the expected performance.

Precision thrust ball bearings from other manufacturers may carry similar designations, but they are not always directly interchangeable. Tolerances, preload and load capacity can differ and affect performance. Before replacing a bearing, verify the technical specifications or ask a specialist. MR Industrial Accessories can help you find a suitable option within its SKF range and other brands it supplies.

Send your part number by WhatsApp or email to MR Industrial Accessories for a prompt quote. If you need help identifying the correct model, the team can suggest equivalents and guide your choice so your equipment keeps running with the precision it needs.