RB0805 Datasheet, PDF (10/14 Pages) List of Unclassifed Manufacturers – Absorbing impact and noise

Series RB
Specific Product Precautions 2
Be sure to read before handling.
Refer to front matters 42 and 43 for Safety Instructions.
Operating Environment
Caution
5. Vibration
When vibrations are applied on impact objects, implement a secure
guide on impact objects.
Mounting
Warning
1. Before performing installation, removal, or stroke adjustment,
make sure to cut the power supply to the equipment and verify
that the equipment has stopped.
2. Installation of protective cover
We recommend the protective cover should be installed in the case
workers might be getting close during the operation.
3. The rigidity of the mounting frame
The mounting frame must have sufficient rigidity.
Load on mounting plate can be calculated as follows.
E (Absorbed energy : J)
Load on mounting plate N ≅ 2 _{S (Stroke : m)}
Mounting
Caution
2. Deviation of impact
The installation must be designed so that the impact body is
perpendicular to the shock absorber's axial center. An angle of
deviation that exceeds 3° will place an excessive load on the bearings,
leading to oil leaks within a short period of operation.
Allowable eccentric angle θ1 < 3°
Load
3. Rotating angle
If rotating impacts are involved, the installation must be designed so
that the direction in which the load is applied is perpendicular to the
shock absorber’s axial center. The allowable rotating angle until the
stroke end must be θ2 < 3°.
Depending on the impact conditions, a load applied to the mounting
frame may exceed the calculated value.
When setting the rigidity of the mounting frame, the sufficient safety
ration must be taken into account in the calculated value.
Caution
1. Tightening torque of mounting nut should be as follows.
When threading on a mounting frame in order to mount a shock
absorber directly, prepared hole dimensions are referred to the table
below.
For tightening torque of a nut for shock absorber, kindly abide by the
table below.
If the tightening torque that is applied to the nut exceeds the value
given below, the shock absorber itself could become damaged.
Model
RB0604
O.D. thread (mm) M6 x 0.75
Thread prepared bore
(mm)
ø5.3
+0.1
0
Tightening torque
(N · m)
0.85
Model
RB(C)0805
RB(C)0806
RB(C)1006
RB(C)1007
RB(C)1411
RB(C)1412
RB(C)2015
RB(C)2725
O.D. thread (mm) M8 x 1.0 M10 x 1.0 M14 x 1.5 M20 x 1.5 M27 x 1.5
Thread prepared bore
(mm)
ø7.1
+0.1
0
ø9.1
+0.1
0
ø12.7
+0.1
0
ø18.7
+0.1
0
ø25.7
+0.1
0
Tightening torque
(N · m)
1.67
3.14
10.8
23.5
62.8
Allowable rotating eccentric angle θ2 < 3°
Installation Conditions for Rotating Impact
(mm)
Model
S
θ2
R
(Stroke) (Allowable rotating angle) (Min. installation radius)
RB0604
4
76
RB„„0805
5
96
RB„„0806
6
115
RB„„1006
6
115
RB„„1007
7
3°
134
RB„„1411
11
210
RB„„1412
12
229
RB„„2015
15
287
RB„„2725
25
478
4. Do not scratch the sliding portion of the piston rod or the outside
threads of the outer tube.
Failure to observe this precaution could scratch or gouge the sliding
potion of the piston rod, or damage the seals, which could lead to oil
leakage and malfunction. Furthermore, damage to outside threaded
portion of the outer tube could prevent the shock absorber from being
mounted onto the frame, or its internal components could deform,
leading to a malfunction.
5. Never turn the screw on the bottom of the body.
This is not an adjusting screw. Turning it could result in oil leakage.
Piston rod
Bottom set screw (Do not rotate)
1682
Damage is not allowed.