Ceramic Tolerances to DIN 40680

All of the ceramics supplied by Peak Sensors comply to DIN 40680, issue 1983.
Ceramics can be ground to significantly greater accuracies than below, please contact us for details.

Diameter and Length Tolerances

Nominal dimensional range for diameter or length

Degree of accuracy

coarsemedium
Permissable deviation in mmPermissable deviation in mm
up to 4± 0.4± 0.15
above 4 up to 6± 0.6± 0.20
above 6 up to 8± 0.7± 0.25
above 8 up to 10± 0.8± 0.30
above 10 up to 13± 1.0± 0.35
above 13 up to 16± 1.2± 0.40
above 16 up to 20± 1.2± 0.45
above 20 up to 25± 1.5± 0.50
above 25 up to 30± 1.5± 0.55
above 30 up to 35± 2.0± 0.60
above 35 up to 40± 2.0± 0.65
above 40 up to 45± 2.0± 0.70
above 45 up to 50± 2.5± 0.80
above 50 up to 55± 2.5± 0.90
above 55 up to 60± 2.5± 1.00
above 60 up to 70± 3.0± 1.20
above 70 up to 80± 3.5± 1.40
above 80 up to 90± 4.0± 1.60
above 90 up to 100± 4.5± 1.80
above 100 up to 110± 5.0± 2.00
above 110 up to 125± 5.5± 2.20
above 125 up to 140± 6.0± 2.50
above 140 up to 155± 6.5± 2.80
above 155 up to 170± 7.0± 3.00
above 170 up to 185± 7.5± 3.40
above 185 up to 200± 8.0± 3.80
above 200 up to 250± 9.0± 4.20
above 250 up to 300± 10.0± 4.60
above 300 up to 350± 11.0± 5.00
above 350 up to 400± 12.0± 5.50
above 400 up to 450± 13.0± 6.10
above 450 up to 500± 14.0± 6.80
above 500 up to 600± 15.0± 7.60
above 600 up to 700± 16.0± 8.30
above 700 up to 800± 17.5± 9.00
above 800 up to900± 19.0± 9.50
above 900 up to 1000± 20.0± 10.00
above 1000± 0.02 · d± 0.01 · d

Deflectional Tolerances

Nominal dimensional range for length

Degree of accuracy

coarsemedium
Permissable deflection in mmPermissable deflection in mm
up to 301.7 0.15
above 30 up to 401.8 0.20
above 40 up to 501.9 0.25
above 50 up to 602.0 0.30
above 60 up to 702.1 0.35
above 70 up to 802.1 0.40
above 80 up to 902.2 0.45
above 90 up to 1002.3 0.50
above 100 up to 1102.4 0.55
above 110 up to 1252.5 0.65
above 125 up to 1402.6 0.70
above 140 up to 1552.7 0.80
above 155 up to 1702.9 0.85
above 170 up to 1853.0 0.90
above 185 up to 2003.1 1.00
above 200 up to 2503.5 1.25
above 250 up to 3003.9 1.50
above 300 up to 3504.3 1.75
above 350 up to 4004.7 2.00
above 400 up to 4505.1 2.25
above 450 up to 5005.5 2.50
above 500 up to 6006.3 3.00
above 600 up to 7007.1 3.50
above 700 up to 8007.9 4.00
above 800 up to 9008.7 4.50
above 900 up to 10009.5 5.00
above 10001.5 + 0.8% · I 0.5% · I

Ceramic Manufacturing Method

Accuracy

coarse
medium
DIN VDE 0335, Type
610
799
610
799

Manufacturing method

Cast
 
 
Turned
 
 
 

Extruded: Ø 30 mm and above

 
 

Extruded: up to 30 mm Ø

 
 
Non metered pressed
 
 
 
Metered dry pressed
 
 
 
Machined in the green state
 
 

610 is Aluminous Porcelain (Pythagoras)
799 is Recryalised Alumina (Alsint)