Datasets:
nfulton
/
stembolts_dataset

Dataset card Data Studio Files
xet
 Community
1
input
stringlengths
44
76
part
stringclasses
20 values
diag_confidence
float64
0.26
0.99
regulator seat damaged from water hammer event at 20 kPa
pressure regulator
0.91
housing distorted 0.12mm after weld repair attempt
housing
0.78
seal ring contact surface scored by foreign object debris
seal ring
0.76
stress crack propagating from housing relief groove
housing
0.58
bushing squeaks during slow rotation, silent at operating speed
bushing
0.47
fluid weeping from gasket joint under 8.6 kPa static pressure
gasket
0.63
gasket material hardened and cracked after UV exposure exposure
gasket
0.8
regulator lockup pressure 37% above setpoint under no-flow condition
pressure regulator
0.51
stem shaft runout measured at 0.03mm, spec is 0.04mm max
stem shaft
0.76
anti-rotation feature on locking mechanism sheared off
locking mechanism
0.83
dampener fluid discolored and viscosity changed after overtemp event
dampener
0.76
compression spring end coils ground unevenly causing tilt under load
compression spring
0.6
seal works fine at room temp but leaks at 15C operating temperature
o-ring
0.7
torque limiter calibration drifted 25% over service interval
torque limiter
0.68
dampener cavitating under high-frequency low-amplitude input
dampener
0.48
valve core return spring broken, found in two pieces
valve core
0.61
surface cracking visible on o-ring under 10x magnification
o-ring
0.7
collar surface finish degraded, measured Ra 4.7 vs spec Ra 1.1
collar
0.89
customer reports stembolt loosens after 5000 hours of continuous vibration
locking mechanism
0.74
coupling sleeve fractured at stress concentration notch
coupling sleeve
0.91
dampener force-velocity curve shifted 57% from baseline
dampener
0.54
gasket failed bubble test at 5.3 kPa differential
gasket
0.77
fluid weeping from gasket joint under 11.4 kPa static pressure
gasket
0.32
retention clip material fatigue from 100 vibration cycles
retention clip
0.73
compression spring hydrogen embrittlement from plating process
compression spring
0.82
torque limiter slip time of 300ms exceeds 200ms maximum
torque limiter
0.9
pressure regulator sticking during rapid pressure changes
pressure regulator
0.49
compression spring end coils ground unevenly causing tilt under load
compression spring
0.5
intermittent seal failure, cannot reproduce in shop conditions
valve core
0.37
anti-rotation feature on locking mechanism sheared off
locking mechanism
0.53
bearing running rough during manual rotation check
bearing
0.58
high-pitched whine from unit during operation between 3000-3500 RPM
bearing
0.4
casting porosity found in housing near high-stress region
housing
0.58
housing sealing surface damaged by improper gasket removal
housing
0.41
collar material yielded under sustained compressive loading
collar
0.88
bearing running rough during manual rotation check
bearing
0.97
locking mechanism spring fractured, lock no longer holds
locking mechanism
0.55
retention clip found loose during routine inspection
retention clip
0.76
mating holes misaligned by 0.11mm, pins binding on insertion
alignment pin
0.65
coupling sleeve splines badly worn on drive side only
coupling sleeve
0.79
seal ring friction torque 45% higher than specification
seal ring
0.52
housing paint bubbling near heat-affected zone, possible substrate issue
housing
0.7
coupling sleeve splines badly worn on drive side only
coupling sleeve
0.49
flange raised face damaged by overtorqued bolting
flange
0.59
collar face runout of 0.050mm causing uneven seal loading
collar
0.51
collar locking feature stripped, collar free to rotate on shaft
collar
0.88
seal ring swollen after contact with coolant mixture
seal ring
0.63
slow pressure bleed observed over 300 hour static hold test
o-ring
0.86
diamond pin not allowing for thermal growth, binding at 90C
alignment pin
0.83
collar OD worn beyond replacement tolerance from contact wear
collar
0.57
customer complaint of pulsating pressure at downstream gauge
pressure regulator
0.75
retention clip yield marks visible, permanently deformed
retention clip
0.96
surface cracking visible on o-ring under 20x magnification
o-ring
0.59
pressure drop across regulator exceeds 0.6 kPa limit
pressure regulator
0.42
actuator linkage bent from external impact or overtorque
actuator
0.75
unit overheats during sustained operation above 3000 RPM
bearing
0.66
regulator hysteresis of 0.6 kPa between increasing and decreasing flow
pressure regulator
0.7
variable rate spring transition point shifted from -40mm to 60mm
compression spring
0.4
bushing material transfer onto mating shaft surface visible
bushing
0.78
retention clip missing from assembly, found loose in packaging
retention clip
0.61
housing drain port clogged, fluid pooling in lower cavity
housing
0.88
flange to pipe misalignment of 1.6mm causing bolt strain
flange
0.91
spring relaxation of 44% measured after 500 hour soak at 60C
compression spring
0.76
mechanic notes stembolt leaks at installation angle above 45 degrees
gasket
0.42
o-ring splice joint separated after 200 pressure cycles
o-ring
0.91
bushing flange cracked from excessive axial thrust load
bushing
0.64
seal ring swollen after contact with isopropyl alcohol
seal ring
0.65
seal ring swollen after contact with mineral oil
seal ring
0.78
lock engagement inconsistent, works roughly every other attempt
locking mechanism
0.48
torque limiter slip time of 500ms exceeds 150ms maximum
torque limiter
0.54
intermittent sealing failure under load above 13.8 kPa
seal ring
0.68
stem shaft spline wear pattern indicates misalignment
stem shaft
0.58
interference fit between coupling sleeve and housing lost
coupling sleeve
0.56
flash from o-ring molding process interfering with seal contact
o-ring
0.76
pressure regulator output oscillates +/- 1.2 kPa at steady state
pressure regulator
0.92
spring tangling in assembly, wrong wire diameter suspected
compression spring
0.72
clip ejected from groove during 11.8 kPa pressure event
retention clip
0.9
collar surface finish degraded, measured Ra 3.6 vs spec Ra 1.2
collar
0.9
fluid weeping from gasket joint under 4.6 kPa static pressure
gasket
0.28
bearing temperature 70C above baseline during operation
bearing
0.5
customer reports random loss of seal during night shift operation
actuator
0.32
compression spring coils clashing at 16% of rated travel
compression spring
0.41
dampener bottoming out during high-amplitude vibration test
dampener
0.62
stem shaft keyway showing early signs of fretting corrosion
stem shaft
0.83
customer complaint of pulsating pressure at downstream gauge
pressure regulator
0.88
coupling sleeve axial float exceeds 1.8mm allowable
coupling sleeve
0.75
retention clip wrong size installed from factory, loose fit
retention clip
0.7
slight oozing at gasket face, worsens under vibration loading
gasket
0.45
actuator stalls under load at 85% of rated capacity
actuator
0.67
o-ring groove dimensions out of spec by 0.13mm on diameter
o-ring
0.55
variable rate spring transition point shifted from -10mm to 100mm
compression spring
0.74
torque limiter reset mechanism jammed in tripped position
torque limiter
0.82
thread plating peeling, causing rough engagement feel
thread assembly
0.73
valve core stem bent 0.10mm, causing binding in guide bore
valve core
0.64
bushing retaining feature damaged, bushing can walk axially
bushing
0.95
stem shaft spline wear pattern indicates misalignment
stem shaft
0.91
valve core seating surface pitted from cavitation damage
valve core
0.39
retention clip corroded, barely holding after chemical spray exposure
retention clip
0.72
anti-rotation feature on locking mechanism sheared off
locking mechanism
0.59
alignment pin length 1.0mm short, insufficient engagement depth
alignment pin
0.74