What is SAI on an alignment?
Return. Steering Axis Inclination (SAI) SAI is the measurement in degrees of the steering pivot line when viewed from the front of the vehicle. This angle, when added to the camber to form the included angle (see below) causes the vehicle to lift slightly when you turn the wheel away from a straight ahead position.
What is suspension Sai?
Steering axis inclination is the inward tilt of the suspension toward the center of the vehicle. The line runs through the upper and lower ball joints in a conventional suspension system. Unlike SAI, the caster angle is adjustable.
Why is SAI used as a diagnostic angle?
The Steering Axis Inclination (SAI) angle has a direct effect on steering and handling because it causes the wheel spindle to angle downward slightly as the wheel is steered.
What is the common value for the SAI?
“Human values are innate qualities” – Sathya Sai Baba Sathya Sai Education is based on five human values: Truth, Right Conduct, Peace, Love, and Nonviolence.
Does Sai cause tire wear?
The effects of SAI are most notable on open-tread, off-road tires because the camber change through a turn is often sufficient to wear the corners off the tread blocks. Since SAI is a fixed angle built into the spindle, SAI-related tire wear complaints are generally caused by offset wheels and bent spindles.
What does SAI stand for in automotive?
SAI. Secondary Air Injection (automotive)
Does toe cause pull?
Therefore, toe in (or out, or both) can definitely make your steering wheel crooked when driving straight, but it almost never causes a pull. On the other hand, though it may not cause a pull, it is the single greatest cause of premature tire wear.
What is the most critical tire wearing angle?
Toe
Toe is the most critical tire wearing angle. Tires that “toe-in” point toward one another. Tires that “toe-out” point away from each other. This refers to the tilt of the wheels toward or away from one another when viewed from the front.
What is cross camber in wheel alignment?
Camber spread (or cross camber) is the difference in camber. values between the left and right side of the vehicle. This. difference is normally specified as a maximum of 30′ (0.5°) or. 45′ (0.75°) depending upon the model.
Which alignment angle is most likely to cause tire wear?
Inner-edge tire tread wear is the most common tread wear problem most technicians see. The angles causing this type of wear are typically negative toe and camber. For parts, there are three component sources of the inner-edge tread wear: bushings, springs and loads.
What is an SAI number in insurance?
A statement of additional information (SAI) is a supplementary document added to a mutual fund’s prospectus that contains additional information about the fund and includes further disclosure regarding its operations.
What is the SAI stand for?
Acronym. Definition. SAI. Statement of Additional Information (SEC)
What is Sai angle on a front wheel?
SAI and the Included Angle. The (SAI) Steering Axis Inclination angle is created and measured in degrees. It runs from the lower ball joint through the upper ball joint, or on most front wheel vehicles, through the center of the strut mount. The illustration uses ball joints to represent the angle.
What is steering axis inclination (SAI)?
This is because Steering Axis Inclination is a non-adjustable angle. When this angle is out of specifications, there is likely something bent somewhere in the steering or suspension. The included angle is the fixed SAI with the camber angle included.
Why is my alignment Sai lower than the specs?
Let’s say you check the alignment readings on a customer’s car and find that SAI is OK, but the camber and included angle readings are both LESS than what they should be. The most likely cause would be a bent strut and/or knuckle. Ditto if SAI is within specs, but the camber and included angle readings are both GREATER than specifications.
Does Sai angle include Camber angle?
This measurement of degrees includes the measurement from lower ball joint to the upper ball joint or the upper strut mount and true vertical (the tire actually sitting straight up and down). The SAI angle doesn’t include the camber angle. This is because Steering Axis Inclination is a non-adjustable angle.