Self-Aligning Ball B. FAG 1217 -K-TVH-C3

The FAG 1217 -K-TVH-C3 self-aligning ball bearing, with a bore of 85 mm, an outside diameter of 150 mm and a width of 28 mm, automatically compensates for misalignment and shaft deflection.

The double-row self-aligning ball bearing 1217 -K-TVH-C3 is an open rolling bearing made from standard rolling bearing steel (100Cr6) with a common hollow-spherical raceway in the outer ring. This design accommodates misalignment between the inner and outer rings without noticeably impairing running characteristics. Fitted with a polyamide cage (TVH), the bearing guides the rolling elements with low vibration. The tapered bore allows for precise mounting on tapered shaft seats or in combination with suitable adapter sleeves.

In which applications does the 1217 -K-TVH-C3 self-aligning ball bearing compensate for misalignment?

This self-aligning ball bearing is primarily used where shaft deflection or misalignment between bearing locations is to be expected. Typical applications include designs with longer shaft spacings or shafts that are susceptible to bending. As the bearing is open at both ends, it is primarily suitable for installations with an external housing seal and centralised lubrication via grease or lubricating oil.

What are the advantages of the tapered bore and the C3 clearance?

The tapered internal profile, with a taper ratio of 1:12, facilitates a secure fit on the shaft and allows the operating clearance to be precisely adjusted via the axial displacement. Thanks to the slightly increased radial bearing clearance (C3), the bearing has sufficient residual clearance should thermal expansion occur during operation or the inner ring be elastically expanded during press-fitting. This provides designers and maintenance engineers with a reliable margin for thermally demanding operating conditions within a temperature range of -30 to +120 degrees Celsius.