A shaft is supported by identical Timken TS series tapered roller bearings in an indirect mount...

Transcribed Image Text:

A shaft is supported by identical Timken TS series tapered roller bearings in an indirect mount (mount details not depicted). The shaft carries an external transverse force of 2000 N and an external axial load of 800 N. (a) What is the effective bearing spread, EBS, (mm) for this shaft? (b) Determine the equivalent radial load (N) at bearing A. (c) Determine the equivalent radial load (N) at bearing B. T 12.700 mm 2000 N + 800 N 38.100 mm (d) What is the life in revolutions that can be expected for the bearings? 40 cm 40 cm A B A reliability of 99% is required. A load application factor of k = 1.5 should be used to account for input transients. The bearings are lubricated with clean, high quality grease, so a grease life factor of a3,grease = 0.79 should be applied (no other lubrication factor is needed). Answers (a) EBS (mm) (b) PA (N) (c) PB (N) (d) L (rev) A shaft is supported by identical Timken TS series tapered roller bearings in an indirect mount (mount details not depicted). The shaft carries an external transverse force of 2000 N and an external axial load of 800 N. (a) What is the effective bearing spread, EBS, (mm) for this shaft? (b) Determine the equivalent radial load (N) at bearing A. (c) Determine the equivalent radial load (N) at bearing B. T 12.700 mm 2000 N + 800 N 38.100 mm (d) What is the life in revolutions that can be expected for the bearings? 40 cm 40 cm A B A reliability of 99% is required. A load application factor of k = 1.5 should be used to account for input transients. The bearings are lubricated with clean, high quality grease, so a grease life factor of a3,grease = 0.79 should be applied (no other lubrication factor is needed). Answers (a) EBS (mm) (b) PA (N) (c) PB (N) (d) L (rev)