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  2. Systems and components for machine and plant construction
  3. 21000
  4. Profile guide rails
  5. Clamping elements for profile guide rails
    6. 21427-25
Designation
Clamping element
Version 1
for guide rails
Main material
steel
B=Width
25
A
20
A1
20
A2
45,5
A3
41,5
A4
16,2
A5
65
B1
70
H1
36
H2
12
H3
23
L3
30
M
M6
Order number adapter plate
21427-925
Retaining force F1 N
1200
S
4
Size
25
T
8
Tightening torque Nm
7
UNSPSC Code
31171513
~ CONFLICT MINERALS 3TG status
no intentional 3TG
~ CP65 substance 1 cancer & reproductive toxicity
lead and lead compounds
~ CP65 substance 2 cancer
carbon-black extracts
~ PFAS free?
yes
~ REACH SVHC-free?
yes
~ REACh SVHC 2 name > threshold
previous lead possible
~ RoHS conformity
yes, without exemption
~ TSCA 6(H) conformity
yes

Description

Material
Housing steel. From size 55 aluminium.
Clamping lever plastic, threaded spindle grade 12.9.
Version
Housing nickel-plated. From size 55 anodised.
Clamping lever spindle black oxidised.
Note
Manually operated clamping elements for static clamping tasks. Manual clamping process using the freely adjustable clamping lever. The floating clamp ensure symmetrical application of force onto the rail. Up to 50,000 static clamping cycles (B10d value).

In general, a friction connection is created between the clamping element and the the linear guide on the open faces of the profile guide rail so that the ball guide tracks are not damaged.

The retaining force is tested on an oil smeared profile guide rail.

An adapter plate, dependent on the type of carriage used, is required for height adjustment.
Temperature range
-10°C to +70°C.
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