Page 425 - MiSUMi 2025

Economy series Product Overview Product Overview Economy series
Cross Roller Guides Cross Roller Guides

QRated Life QInstallation Procedure of Cross Roller Guide
Economy series The life of cross roller guide is calculated with the formula below. 1 Secure slide rails A, B and C to the positioning stage and the table with bolts, and
slightly tighten the slide rail D. (Figure 1)
(
)
10/3
2 Remove the end stop and insert the cage from the ends. (Figure 2)
fT·C

Cross Roller Guides L= ·50 3 Move the positioning stage side to side to position the cage in the center of the
fw·P
rail.
4Install the dial indicator in the specified position. (Figure 3)
L : Operating Life (km) fT: Temperature coefficient (see Figure-2) C: Dynamic Load Rating (N)
fw: Load coefficient (see Table-4) P: Applied load (N) 5 Drive the positioning stage, and tighten the adjusting screws a to e in the range
of the cage with a torque wrench or other tool. (Figures 4 to 6)
6 Before the value of the dial indicator reaches its minimum and does not change,
Life Time conduct the operation in step 5.
High rigidity L·10 3 7 When the value of the dial indicator is at the minimum and does not change,
Lh= completely tighten the adjusting screws.
Smooth movement 2·Ls·n1·60 8Slightly tighten the slide rail D before the final fixation.
Lh: Life Hours (hr) L : Operating Life (km)
Rich in specifications Ls: Stroke length (m) n1: Number of round trips per minute (cpm) Figure 1 Figure 4
I Load coefficient (fW) Cage
When calculating the load applied on the cross roller positioning stage, it is necessary
to correctly calculate the inertial force or torque load generated by the speed of the
movement and its relationship to the change in time, etc.. However, it is difficult to attain
accurate calculations due to potential vibration and impacts caused during reciprocating B C
motion, other than repeat start-stop motion. A D
Therefore, the load coefficients shown in the table can be used to simplify the
operating life calculation.
4 Table-4: Load Coefficient fw End stop a b c d e 4
Linear Guides / Linear Shafts / Linear Bushing / Ball Splines / Oil Free Bushings No external impact vibration 1.0~1.5 Figure 2 Cage Figure 5 Oil Free Bushings Linear Bushing / Ball Splines / Linear Guides / Linear Shafts /
Operating Condition
At low speed 15m/min or less
No obvious impact vibration
1.5~2.0
At medium speed 60m/min or less
With external impact vibration
2.0~3.5
At high speed 60m/min or above
ITemperature coefficient (fT)
If the temperature of the cross roller positioning stage exceeds 100°C, the
Linear Guides will be lower than the load during use at room temperature, and the life will be a b c d e Guides Linear
hardness of the positioning stage and the shaft will decrease, the allowable load
shortened accordingly.
Please use the temperature coefficient to compensate for the rated life.
Please use cross roller positioning stages within the heat-resistance temperature
P.04-011 range indicated on each product page. Figure 3 Figure 6 P.04-011
Cross Roller Guides 1.0 Dial indicator Guides Cross Roller
Figure: Temperature Coefficient
Adjusting screw
0.9
0.7
P.04-039 Temperature coefficient fT 0.8 Adjustment a b c d e P.04-039
Linear Shafts / Bushings 0.5 100 150 200 250 Side Bushings Linear Shafts /
0.6
Temperature of linear system section (°C)
P.04-043 QExample of Use P.04-043
Ball Splines Ball Splines

P.04-107 Cross Roller Guide is an important component of P.04-107
Cross Roller Guide type positioning stages and
Rail
Oil Free Bushings often used in positioning stage products. Bushings Oil Free
The rollers are arranged in two V-groove guide rails

roll along the V-groove and, as they move, act as a
P.04-126 Rail in an alternating and orthogonal manner. The rollers P.04-126
guide mechanism to achieve better motion accuracy.
Shaft Supports / Collars End stop Cage Collars Shaft Supports /
Roller

P.04-144 P.04-144
04-039 04-040