x F F F F

MAK 312-1 Makina Elemanları – Fall 2015
QUIZ 6 , Şube 1
16 November 2015
Ad, Soyad:
Instructor: Prof. M. Ali Güler
No:
y
FCy
FAz
FAx
A
a
FCz
T
C
FBz
T
FCx
B
x
b
FBy
FAy
z
Figure 6.1: Shaft layout
Problem: Figure 6.1 shows the input shaft of the crane gear box, supported in the gear box
by deep-groove ball-bearings A and B. Also, the axial load Fa is acted on A. Determine:
(a) The equivalent load
(b) The median life in hours
(c) Analyze the load-carrying capacity of the bearing
Given: The shaft has 50-mm diameter and operates at 1200rpm. Assume that the inner ring
rotates and the 02-series bearings are subjected to light shock load.
FCy  150 N
a  33 mm
FCz  412 N
b  42 mm
FCx  100 N
T  4.12 N.m
Prepared by: Torkan Shafighfard