Rolling Bearing Damage 2009 Part 8 docx
Rolling Bearing Damage 2009 Part 8 docx
... cleanliness.
FAG 48
Evaluation of running features and damage to dismounted bearings
Lip contact
80 : Scoring on the face of a tapered
roller
79: Lip area scoring due to foreign
particles
78: Normal ... with
tapered roller bearings), figs. 79 and 80 .
Their depth into the lip area depends on
the rolling element radius the foreign
particle became stuck in.
Causes:
Hard foreign partic...
Rolling Bearing Damage 2009 Part 2 potx
... damage to dismounted bearings
FAG 12
12: Rolling bearing damage symptoms and their causes
Symptom Damaged area of bearing Typical causes of rolling bearing damage
Mounting
Seats Rolling Lip Cage ... damage
Bearing monitoring with technical devices
FAG 6
40 60 80 100 120 140 160 180 200
Undamaged bearing
Damaged bearing
Vibration acceleration
0, 086 g
0, 086 g
0
Freq...
Rolling Bearing Damage 2009 Part 3 pptx
... taken
3.1 Measures to be taken
3.1.1 Marking separate parts
– When there are several bearings from
the same type of bearing location
number all bearing parts and keep a
record of their arrangement in ... is particularly good they are the
only indication of the position of the
load zones in the bearing, fig 23.
When temperatures are above
approximately 80 °C discolouration of
the racewa...
Rolling Bearing Damage 2009 Part 4 ppt
... during mounting
– Set suitable bearing clearance
FAG 26
Evaluation of running features and damage to dismounted bearings
Pattern of rolling contact
38: Misaligned bearings
a: Tilting of the inner ... designed as the locating
bearing, the bearing on the drive end
as the floating bearing.
b: Tracks on bearings in working order.
The locating bearing shows the
characteristics of a...
Rolling Bearing Damage 2009 Part 5 pot
... surrounding parts
– Correct mounting
FAG 30
Evaluation of running features and damage to dismounted bearings
Pattern of rolling contact
46: Fatigue damage in groove bottom of an angular contact ball bearing& apos;s ... of running features and damage to dismounted bearings
Pattern of rolling contact
44: Reduction in life due to different contaminants
45: Fatigue damage caused by f...
Rolling Bearing Damage 2009 Part 6 ppt
... flowing
through the bearing (earthing, insula-
tion).
– Use current insulated bearings.
FAG 38
Evaluation of running features and damage to dismounted bearings
Pattern of rolling contact
59: ... with rolling
bearing manufacturer's specifications
– Improvement in seals
– Use lubricant with corrosion inhibi-
tors
35 FAG
Evaluation of running features and damage to dismounted...
Rolling Bearing Damage 2009 Part 9 ppsx
... and
Dismounting of Rolling Bearings").
57 FAG
Evaluation of running features and damage to dismounted bearings
Cage damage
94: Melted fase of plastic cage in the case of incorrect bearing heating ... self-aligning bearings, avoid mis-
alignment
55 FAG
Evaluation of running features and damage to dismounted bearings
Cage damage
90: Diagonal wear in cage pockets of roller beari...
Rolling Bearing Damage 2009 Part 10 ppsx
... 2 28, 616 1,673 2 68 962 415 179515 107157
Manganese 257,610 1,3 18 -76 -121 -34 6 781 6 51496
Chromium 267,716 1,476 381 669 195 76696 51 688
Copper 324,754 0 ,83 4 -471 80 660 2297 3316
Molybdenum 281 ,615 ... -17 89 99 47 781 44543
Nickel 231,604 1,7 78 4 114 62 384 87 21640
Vanadium 311,071 0,937 -37 5 45 642 28 685 60
Tungsten 400 ,87 5 0,742 -16 4 26 14129 19053
Silicon 251,611 2...
Rolling Bearing Damage 2009 Part 11 pot
... info@schaeffler.com
In Germany:
Phone 0 180 500 387 2
Fax 0 180 500 387 3
From other countries:
Phone +49 9132 82 -0
Fax +49 9132 82 -4950
Notes
4.7 Calculation of load
conditions
In several cases bearings, whose load
situation ... calculate values for the ex-
ternal bearing load, tilting between
mounted rings, internal stress, kinematic
procedures within the bearing, deforma-
tion of...
Dynamics of Mechanical Systems 2009 Part 8 docx
... work–energy principle,
then, is:
(10 .8. 15)
or
(10 .8. 16)
or
(10 .8. 17)
If the pendulum is to rise all the way to the vertical equilibrium position (θ = π), we have:
(10 .8. 18)
If is exactly 4gᐉ, the pendulum ... concepts, consider again the rolling circular disk (or rolling coin”)
discussed in Sections 4.12 and 8. 13 and as shown in Figure 11.3.1. Recall from Eqs. (4.12.3)
and (8. 1...
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