controlarm(upper/lower)a suspensionlink that locatesthe wheel andallows verticalmotionridequality/ridecomfortthe feel of thevehicle throughsuspensionmovement anddampingwheeland tireserviceincludesbalancing,mounting,inflation,rotation, andinspectiontie rodendconnects thesteering linkageto the steeringknuckle,transferringsteering motioncontrolarmbushinga rubber orelastomericmount thatcushions andlocates thecontrol armstrutmount/bearingthe top mountingpoint of a strutassembly, oftencontaining abearing forsteeringmovementlostmotionexcessive freeplay in steeringbefore wheelmovementoccursanti-rollbar (swaybar)/ swaybar linkconnects bothsides of thesuspension toreduce bodyrolljounce/reboundbumperlimitssuspensiontravel at theextreme endsof movementtorsionbara springingmember thatresists twistand sets rideheight andspring rateshockabsorber(damper)a componentthat controlsspringoscillations andmotiondampingloadleveling/heightsensingsystems thatadjustsuspensionheight undervarying loadsidler arm/pitmanarmsteering linkagecomponentsthat support ortransfersteering motionwheeloffsetthe distancefrom the wheel’smountingsurface to itscenterline;affects fitmentundersteer/oversteerhandlingconditions wherethe vehicle turnsless (understeer)or more(oversteer) thanintendedsteering gear(rack andpinion /recirculatingball)convertssteeringwheel inputinto wheelmotionwheelalignmentadjustingcamber, caster,toe, and thrustangle to meetvehiclespecificationsairsuspensionuses airsprings insteadof conventionalcoil or leafspringsspringratethe stiffnessof a spring;resistance tocompressionthrustangleadjustmentaligning therear axlethrust line withthe vehicle’scenterlinecamberthe tilt of the wheelor tire inward oroutward whenviewed from thefront of the vehiclerideheightthe verticaldistance betweenthe vehicle’schassis and theground (or frameand axle)powersteeringpump /control valvehydraulic orelectriccomponentsthat reducesteering effortrackpiston /sectorshaftinternal parts ofa steering gearthat can causeplay orlooseness ifworncamberchangeduringrebound/compressionvariation incamber angleas thesuspensionmoves up ordownsteeringcolumnthe shaft andhousingconnecting thesteering wheelto the steeringgearstrutassemblycombines ashock absorberwith a structuralcomponentsupporting thechassisbindingwhen asteering orsuspensionpart does notmove freelysteeringratiothe amount ofroad wheelturn comparedto steeringwheel inputshort-arm/long-arm (SLA)suspensiona frontsuspensiondesign usingunequal lengthcontrol armspower-steeringbelt/pulleydrives thepowersteering pumpin manyvehiclesnegativecamber/positivecambertop of the tiretilts inward(negative) oroutward(positive)thrustanglethe direction therear wheelspush the vehiclerelative to thecenterline of thevehiclecasterthe tilt of thesteering axiswhen viewedfrom the side(forward orrearward tilt)balljointa pivot pointallowing multi-directionalmovement,connecting controlarms and steeringknuckleswheelimbalanceuneven weightdistribution in awheel/tireassemblycausingvibrationcastertrail/steeringtrailthe distancebetween the tire’scontact patch andthe steering axisintersection pointtoe-in/toe-outthe angle the tiresare pointed toward(toe-in) or awayfrom (toe-out)each other whenviewed from abovethrustlinethe direction inwhich the rearaxle pushesrelative to thevehicle’scenterlinecontrolarm(upper/lower)a suspensionlink that locatesthe wheel andallows verticalmotionridequality/ridecomfortthe feel of thevehicle throughsuspensionmovement anddampingwheeland tireserviceincludesbalancing,mounting,inflation,rotation, andinspectiontie rodendconnects thesteering linkageto the steeringknuckle,transferringsteering motioncontrolarmbushinga rubber orelastomericmount thatcushions andlocates thecontrol armstrutmount/bearingthe top mountingpoint of a strutassembly, oftencontaining abearing forsteeringmovementlostmotionexcessive freeplay in steeringbefore wheelmovementoccursanti-rollbar (swaybar)/ swaybar linkconnects bothsides of thesuspension toreduce bodyrolljounce/reboundbumperlimitssuspensiontravel at theextreme endsof movementtorsionbara springingmember thatresists twistand sets rideheight andspring rateshockabsorber(damper)a componentthat controlsspringoscillations andmotiondampingloadleveling/heightsensingsystems thatadjustsuspensionheight undervarying loadsidler arm/pitmanarmsteering linkagecomponentsthat support ortransfersteering motionwheeloffsetthe distancefrom the wheel’smountingsurface to itscenterline;affects fitmentundersteer/oversteerhandlingconditions wherethe vehicle turnsless (understeer)or more(oversteer) thanintendedsteering gear(rack andpinion /recirculatingball)convertssteeringwheel inputinto wheelmotionwheelalignmentadjustingcamber, caster,toe, and thrustangle to meetvehiclespecificationsairsuspensionuses airsprings insteadof conventionalcoil or leafspringsspringratethe stiffnessof a spring;resistance tocompressionthrustangleadjustmentaligning therear axlethrust line withthe vehicle’scenterlinecamberthe tilt of the wheelor tire inward oroutward whenviewed from thefront of the vehiclerideheightthe verticaldistance betweenthe vehicle’schassis and theground (or frameand axle)powersteeringpump /control valvehydraulic orelectriccomponentsthat reducesteering effortrackpiston /sectorshaftinternal parts ofa steering gearthat can causeplay orlooseness ifworncamberchangeduringrebound/compressionvariation incamber angleas thesuspensionmoves up ordownsteeringcolumnthe shaft andhousingconnecting thesteering wheelto the steeringgearstrutassemblycombines ashock absorberwith a structuralcomponentsupporting thechassisbindingwhen asteering orsuspensionpart does notmove freelysteeringratiothe amount ofroad wheelturn comparedto steeringwheel inputshort-arm/long-arm (SLA)suspensiona frontsuspensiondesign usingunequal lengthcontrol armspower-steeringbelt/pulleydrives thepowersteering pumpin manyvehiclesnegativecamber/positivecambertop of the tiretilts inward(negative) oroutward(positive)thrustanglethe direction therear wheelspush the vehiclerelative to thecenterline of thevehiclecasterthe tilt of thesteering axiswhen viewedfrom the side(forward orrearward tilt)balljointa pivot pointallowing multi-directionalmovement,connecting controlarms and steeringknuckleswheelimbalanceuneven weightdistribution in awheel/tireassemblycausingvibrationcastertrail/steeringtrailthe distancebetween the tire’scontact patch andthe steering axisintersection pointtoe-in/toe-outthe angle the tiresare pointed toward(toe-in) or awayfrom (toe-out)each other whenviewed from abovethrustlinethe direction inwhich the rearaxle pushesrelative to thevehicle’scenterline

CATS ASE Steering & Suspension Vocab - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. a suspension link that locates the wheel and allows vertical motion
    control arm (upper/ lower)
  2. the feel of the vehicle through suspension movement and damping
    ride quality/ ride comfort
  3. includes balancing, mounting, inflation, rotation, and inspection
    wheel and tire service
  4. connects the steering linkage to the steering knuckle, transferring steering motion
    tie rod end
  5. a rubber or elastomeric mount that cushions and locates the control arm
    control arm bushing
  6. the top mounting point of a strut assembly, often containing a bearing for steering movement
    strut mount/ bearing
  7. excessive free play in steering before wheel movement occurs
    lost motion
  8. connects both sides of the suspension to reduce body roll
    anti-roll bar (sway bar)/ sway bar link
  9. limits suspension travel at the extreme ends of movement
    jounce/ rebound bumper
  10. a springing member that resists twist and sets ride height and spring rate
    torsion bar
  11. a component that controls spring oscillations and motion damping
    shock absorber (damper)
  12. systems that adjust suspension height under varying loads
    load leveling/ height sensing
  13. steering linkage components that support or transfer steering motion
    idler arm/ pitman arm
  14. the distance from the wheel’s mounting surface to its centerline; affects fitment
    wheel offset
  15. handling conditions where the vehicle turns less (understeer) or more (oversteer) than intended
    understeer/ oversteer
  16. converts steering wheel input into wheel motion
    steering gear (rack and pinion / recirculating ball)
  17. adjusting camber, caster, toe, and thrust angle to meet vehicle specifications
    wheel alignment
  18. uses air springs instead of conventional coil or leaf springs
    air suspension
  19. the stiffness of a spring; resistance to compression
    spring rate
  20. aligning the rear axle thrust line with the vehicle’s centerline
    thrust angle adjustment
  21. the tilt of the wheel or tire inward or outward when viewed from the front of the vehicle
    camber
  22. the vertical distance between the vehicle’s chassis and the ground (or frame and axle)
    ride height
  23. hydraulic or electric components that reduce steering effort
    power steering pump / control valve
  24. internal parts of a steering gear that can cause play or looseness if worn
    rack piston / sector shaft
  25. variation in camber angle as the suspension moves up or down
    camber change during rebound/ compression
  26. the shaft and housing connecting the steering wheel to the steering gear
    steering column
  27. combines a shock absorber with a structural component supporting the chassis
    strut assembly
  28. when a steering or suspension part does not move freely
    binding
  29. the amount of road wheel turn compared to steering wheel input
    steering ratio
  30. a front suspension design using unequal length control arms
    short-arm/long-arm (SLA) suspension
  31. drives the power steering pump in many vehicles
    power-steering belt/ pulley
  32. top of the tire tilts inward (negative) or outward (positive)
    negative camber/ positive camber
  33. the direction the rear wheels push the vehicle relative to the centerline of the vehicle
    thrust angle
  34. the tilt of the steering axis when viewed from the side (forward or rearward tilt)
    caster
  35. a pivot point allowing multi-directional movement, connecting control arms and steering knuckles
    ball joint
  36. uneven weight distribution in a wheel/tire assembly causing vibration
    wheel imbalance
  37. the distance between the tire’s contact patch and the steering axis intersection point
    caster trail/ steering trail
  38. the angle the tires are pointed toward (toe-in) or away from (toe-out) each other when viewed from above
    toe-in/toe-out
  39. the direction in which the rear axle pushes relative to the vehicle’s centerline
    thrust line