Deep Groove Ball Bearings FAG 6315 -Z

The FAG 6315-Z deep-groove ball bearing (75x160x37 mm) features a single-sided sheet metal cover plate, providing protection against dirt particles whilst ensuring low friction.

The 6315-Z deep groove ball bearing is a single-row radial ball bearing, manufactured from standard rolling-element bearing steel (100Cr6). As a versatile machine component, this rolling bearing primarily absorbs radial forces, but also guides shafts precisely when subjected to axial forces acting from both sides. With a bore of 75 mm, an outer diameter of 160 mm and a width of 37 mm, this component is suitable for designs with high demands on smooth running and load-carrying capacity. The symmetrically designed raceways ensure an even distribution of forces across the rolling elements.

In which applications is the 6315-Z deep-groove ball bearing used?

This radial deep-groove ball bearing is used in rotating bearing arrangements where combined radial and axial loads occur. Thanks to its robust sheet steel cage, the bearing guides the rolling elements with low vibration and low noise at both constant and varying speeds. The single-row bearing covers a wide operating temperature range from –30 to +150 degrees Celsius and retains its dimensional stability even under thermal stress. This makes the design suitable for applications where fluctuating operating temperatures and continuous rotational movement prevail.

What is the function of the single-sided Z cover plate?

The suffix ‘Z’ denotes a non-contact gap seal made from profiled sheet metal on one side of the bearing. This cover keeps coarse contaminants and foreign particles away from the raceway system without generating any additional frictional torque. The open side on the opposite side allows for targeted relubrication or installation in enclosed housings with an existing oil bath. The standard radial bearing clearance ensures smooth running during operation with standard mounting fits and compensates for minor heat-induced expansion of the components.