Tolerance Types: Limit Dimensions
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the max and min size that a part can obtain and still function properly
Dimension Line
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thin solid line terminated by arrowheads which indicate the direction and
extent of a dimension
a number is placed in the middle to specify size
,Fasteners
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include items such as bolts, nuts, screws .....
not permanent means of assembly
used in machines that may need to be taken apart and serviced
Types of fits: Transition Fit
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fit might be a clearance OR an interference
min clear < 0
max clear > 0
The higher the internal tolerance (IT) grades, the ____ the cost
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lower
The _____ view shows the most features or characteristics of the object. It contains the
least number of hidden lines.
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, front
Leader Line
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a straight inclined thin solid line that is usually terminated by an arrowhead.
It is used to direct a dimension, note, symbol, item number, or part number
to the inteded feature on a drawing
It is not horizontal or vertical except for a short portion extending to the
first or last letter of a note.
Minor DIA (d)
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minor diameter is the smallest diameter
External Thread
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on the outside
a chamfer on the end of the screw thread makes it easier to engage the nut
Types of fits: Interference Fit
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the max and min size that a part can obtain and still function properly
Dimension Line
Give this one a try later!
thin solid line terminated by arrowheads which indicate the direction and
extent of a dimension
a number is placed in the middle to specify size
,Fasteners
Give this one a try later!
include items such as bolts, nuts, screws .....
not permanent means of assembly
used in machines that may need to be taken apart and serviced
Types of fits: Transition Fit
Give this one a try later!
fit might be a clearance OR an interference
min clear < 0
max clear > 0
The higher the internal tolerance (IT) grades, the ____ the cost
Give this one a try later!
lower
The _____ view shows the most features or characteristics of the object. It contains the
least number of hidden lines.
Give this one a try later!
, front
Leader Line
Give this one a try later!
a straight inclined thin solid line that is usually terminated by an arrowhead.
It is used to direct a dimension, note, symbol, item number, or part number
to the inteded feature on a drawing
It is not horizontal or vertical except for a short portion extending to the
first or last letter of a note.
Minor DIA (d)
Give this one a try later!
minor diameter is the smallest diameter
External Thread
Give this one a try later!
on the outside
a chamfer on the end of the screw thread makes it easier to engage the nut
Types of fits: Interference Fit
