Page 127 - MiSUMi FA Mechanical Components Economy Series

Quality Assurance Economy Series
Linear Guides

· Running Parallelism · [Running Parallelism] The values in the table are all
measured after the slide rail is fixed on the reference
base. When moving the slider within the full length of the
Rail Length (mm) $FFXUDF\ JUDGH ȝP
slide rail, measure the change of the block upper surface
C relative to the slide rail bottom surface A and the 2
100~200 14
change of the block reference surface D relative to the
slide rail reference surface B.
200-300 15
300-500 17 · Running parallelism Bushings / Oil Free Bushings Linear Guides / Linear
of surface C against
surface A
500-700 20
700-900 22
900-1100 24 Linear Guides Miniature
· Running parallelism
1100-1500 26 of surface D against
surface B P.113
1500-1900 28
1900-1960 31 Guides Linear
* The above figure shows machining until the surface A (slide rail mounting
surface) is flat, and the surface B and the surface E (slide rail contact P.123
surface) are parallel.
2Allowable Load

· Basic Dynamic Rated Load (C) Bushings Linear
The basic dynamic rated load is the load that enables a group of identical linear guides to move separately under the same
conditions, 90% of which will not cause material damage due to rolling fatigue, and will slide 50×10 m in a constant direction. P.139
3
· Basic Static Rated Load (Co)
The basic static rated load is the static load required to make the sum of the permanent deformation amount of the rolling
element and the permanent deformation amount of the rolling surface on the contact part bearing the maximum stress equal Bushings Oil Free
to 0.0001 times the diameter of the rolling element.
· Static Allowable Torque (MA,MB,MC)
The static torque load limit under the action of torque load is determined by the basic static rated load Co and the same P.161
permanent deformation amount.

$OORZDEOH /RDG 1 ”&R IS Supports Shaft
M
A
$OORZDEOH 7RUTXH 1āP ” 0A, MB, MC)/fS
P.170
fS: Static Safety Factor Co: Basic Static Rated Load (N)
MA, MB, MC: Static allowable torque (N·m)
M
C Collars Shaft
M B
M A
M C
P.173
M
B

Up and down swing direction Left and right swing direction Rolling direction

· Static Safety Factor (fS) Table-2 Static Safety Factor (Lower limit of fS)
The basic static rated load Co at rest or at low
speed shall be used after dividing by the static Operating Condition Lower limit of fS
safety factor (fS) shown in Table-2 according to Under normal operating condition 1~2
the operating condition.
When smooth movement performance is required 2~4
In case of vibration and impact 3~5

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