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
seal ring has flat spot from prolonged storage under compression
seal ring
0.58
oil leaks when self-sealing apparatus is oriented between 0.5 - 0.6 radians
gasket
0.8
locking mechanism engages but does not hold under shock loading
locking mechanism
0.72
flange bolt elongation measured, 9 of 12 bolts yield-stretched
flange
0.83
sleeve to shaft clearance increased by 33% from original
coupling sleeve
0.59
retention clip fractured at bend radius during removal
retention clip
0.57
coupling sleeve OD corroded from exposure to cutting oil
coupling sleeve
0.8
stem shaft chrome plating cracked and flaking at seal zone
stem shaft
0.57
axial endplay measured at 0.04mm, spec is 0.02mm max
bearing
0.92
actuator output shaft seal leaking hydraulic fluid
actuator
0.51
diamond pin not allowing for thermal growth, binding at 80C
alignment pin
0.75
torque limiter reset mechanism jammed in tripped position
torque limiter
0.54
thread cross-threading reported by 9 different installation crews
thread assembly
0.51
locking mechanism pawl worn to 83% of original thickness
locking mechanism
0.58
spring tangling in assembly, wrong wire diameter suspected
compression spring
0.4
customer notes leak worsens proportionally with shaft speed
seal ring
0.8
stem shaft surface hardness measured at HRC 45, spec is HRC 58-64
stem shaft
0.67
high-pitched whine from unit during operation between 2500-6000 RPM
bearing
0.74
coupling sleeve keyway damaged from improper installation
coupling sleeve
0.75
retention clip material fatigue from 20000 vibration cycles
retention clip
0.71
actuator diaphragm ruptured during pressure spike event
actuator
0.64
regulator lockup pressure 52% above setpoint under no-flow condition
pressure regulator
0.6
spring fatigue fracture at 3.4 turns from active end
compression spring
0.41
unit leaks only when mounted horizontally, fine in other positions
gasket
0.26
intermittent seal failure, cannot reproduce in shop conditions
valve core
0.48
valve core soft seat material worn through to metal substrate
valve core
0.85
collar locking feature stripped, collar free to rotate on shaft
collar
0.8
customer hears a pop sound when self-seal first engages
compression spring
0.62
retention clip deformed during over-torque event at installation
retention clip
0.96
intermittent seal failure, cannot reproduce in shop conditions
valve core
0.74
mechanism cycles 7 times before failing to lock, spec is 1000
locking mechanism
0.82
customer reports intermittent failure to engage in humid environments
actuator
0.75
torque readings inconsistent between -30-80 Nm range
torque limiter
0.72
customer reports dry running noise during first 20 seconds of start
bushing
0.47
torque limiter spring preload decayed 87% from original set
torque limiter
0.51
regulator lockup pressure 43% above setpoint under no-flow condition
pressure regulator
0.61
regulator hysteresis of 0.6 kPa between increasing and decreasing flow
pressure regulator
0.73
customer notes leak worsens proportionally with shaft speed
seal ring
0.77
fretting debris visible at collar-to-shaft interface
collar
0.74
seal ring lip torn, likely during assembly process
seal ring
0.66
stem shaft chrome plating cracked and flaking at seal zone
stem shaft
0.82
bearing temperature 60C above baseline during operation
bearing
0.94
torque limiter clutch plates glazed from repeated slip events
torque limiter
0.84
collar surface finish degraded, measured Ra 4.2 vs spec Ra 1.0
collar
0.48
visible extrusion of seal ring material into clearance gap
seal ring
0.78
pilot signal required to shift valve core exceeds 6.4 kPa
valve core
0.32
fluid weeping from gasket joint under 3.0 kPa static pressure
gasket
0.89
o-ring extruded from groove under 8 kPa sustained pressure
o-ring
0.72
thread cross-threading reported by 3 different installation crews
thread assembly
0.76
bushing squeaks during slow rotation, silent at operating speed
bushing
0.67
flange bolt hole cracking observed at 2 o'clock position
flange
0.82
bearing temperature 70C above baseline during operation
bearing
0.91
customer reports same vibration issue across multiple replacement units
dampener
0.91
casting porosity found in housing near high-stress region
housing
0.77
customer says bolt worked for a week then suddenly stopped sealing
valve core
0.41
gasket groove corroded, preventing proper gasket seal
gasket
0.33
interference fit between coupling sleeve and housing lost
coupling sleeve
0.64
actuator travel reduced to 53% of full stroke
actuator
0.65
torque limiter cycling between slip and grip under steady load
torque limiter
0.67
dampener body dented from external impact, piston binding
dampener
0.47
clip ejected from groove during 4.4 kPa pressure event
retention clip
0.84
corrosion visible on outer housing near fluid contact zone
housing
0.75
torsional windup of 1.3 degrees measured on stem shaft under load
stem shaft
0.88
retention clip corrosion products contaminating seal area
retention clip
0.66
spring tangling in assembly, wrong wire diameter suspected
compression spring
0.93
torque limiter spring preload decayed 82% from original set
torque limiter
0.79
coupling sleeve fractured at stress concentration notch
coupling sleeve
0.47
collar clamping force measured at 64% of minimum specification
collar
0.76
thread class fit too tight, requires excessive assembly torque
thread assembly
0.64
dampener bottoming out during high-amplitude vibration test
dampener
0.66
leakage rate of 2.0 mL/hr at the gasket seam, above tolerance
gasket
0.39
torque limiter engagement lag of 100ms under rapid load application
torque limiter
0.42
retention clip deformed during over-torque event at installation
retention clip
0.73
bushing press fit loosened after 1000 thermal cycles
bushing
0.61
dampener fluid level low, possible slow leak from housing
dampener
0.53
seal ring cracked circumferentially at 10 o'clock position
seal ring
0.77
torque limiter clutch plates glazed from repeated slip events
torque limiter
0.78
lead angle error causing bolt to bind at 4.3 turns engagement
thread assembly
0.87
pressure regulator sticking during rapid pressure changes
pressure regulator
0.74
customer says bolt worked for a week then suddenly stopped sealing
valve core
0.72
torque limiter calibration drifted 11% over service interval
torque limiter
0.46
sleeve to shaft clearance increased by 89% from original
coupling sleeve
0.49
unit leaks only when mounted vertically, fine in other positions
gasket
0.73
hairline crack found on stem shaft during ultrasonic inspection
stem shaft
0.96
bushing operating temperature 65C above expected steady-state value
bushing
0.73
surface cracking visible on o-ring under 50x magnification
o-ring
0.8
actuator stalls under load at 30% of rated capacity
actuator
0.77
flash from o-ring molding process interfering with seal contact
o-ring
0.89
locking mechanism pawl worn to 93% of original thickness
locking mechanism
0.92
bushing squeaks during slow rotation, silent at operating speed
bushing
0.54
bushing operating temperature 110C above expected steady-state value
bushing
0.76
flash from o-ring molding process interfering with seal contact
o-ring
0.78
retention clip deformed during over-torque event at installation
retention clip
0.87
flange bolts found finger-tight during inspection
flange
0.56
seal ring groove shows wear marks indicating improper installation
seal ring
0.52
bushing worn oval, clearance doubled from original spec
bushing
0.88
actuator fails to retract fully, self-seal remains partially engaged
actuator
0.33
dampener bushing eye worn, causing clunking under load reversal
dampener
0.7
bushing operating temperature 50C above expected steady-state value
bushing
0.87
leakage rate of 1.7 mL/hr at the gasket seam, above tolerance
gasket
0.88