technical standard
technical standard
technical note
technical note
Plastics
Plastics
Tolerances applicable to moulded plastic
Tolerances applicable to moulded plastic
parts
parts
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Purpose
Purpose
This note defines
This note defines the dimensional and geometrical tolerances
the dimensional and geometrical tolerances
together with the deviations tolerated for
together with the deviations tolerated for moulded objects made of
moulded objects made of
thermosetting or thermoplastic materials. It applies to objects
thermosetting or thermoplastic materials. It applies to objects
obtained by compression, transfer or
obtained by compression, transfer or injection.
injection.
Experts to consult
Experts to consult
Technical Standardisation and
Technical Standardisation and Coordinatio
Coordination
n
Modifications
Modifications
Correction of table 1 with the line corresponding to PVC-P and
Correction of table 1 with the line corresponding to PVC-P and
modification of flash tolerance.
modification of flash tolerance.
This note cancels and replaces: This note cancels and replaces:
- FI-67 311 (Telemecanique standard, SIC) - FI-67 311 (Telemecanique standard, SIC) - T.17430.1 (Merlin Gerin standard, volume 17) - T.17430.1 (Merlin Gerin standard, volume 17)
Content
Content
1. Area of applicatio
1. Area of application
n ...
...2
...2
2. Tolera
2. Tolerance classe
nce classes
s ...
...
...
.. 2
2
3. Dimensional
3. Dimensional tolerances for
tolerances for lengths, diamete
lengths, diameters, radii...
rs, radii...
... 3
3
4. Shape and positio
4. Shape and position toleran
n tolerances
ces ...
...
... 9
9
5.
5. Finis
Finishing tolera
hing tolerances
nces ...
...
...10
10
6.
This note is based on the NF T 58-000 standard. At the
This note is based on the NF T 58-000 standard. At the
present time no ISO standards or draft standards are
present time no ISO standards or draft standards are
available on this subject.
available on this subject.
1. Area of application
1. Area of application
The tolerance values given by the standard are valid only
The tolerance values given by the standard are valid only
for manufacturing tolerances and are applicable only if
for manufacturing tolerances and are applicable only if
there is:
there is:
-- no deforma
no deformation of
tion of part shape
part shape,,
-- no
no flas
flash,
h,
-- no side effects
no side effects such as pos
such as post-shrinkage, swelling,
t-shrinkage, swelling, post-
post-crystallisation or dimensional variations due to the effect
crystallisation or dimensional variations due to the effect
of temperature or moisture.
of temperature or moisture.
Note: Note:
Dimensions are measured after cooling (48 h minimum after moulding Dimensions are measured after cooling (48 h minimum after moulding and prior to all ageing cycles for acceptance or official approval). and prior to all ageing cycles for acceptance or official approval). Reference
Reference atmosphere: atmosphere: 23°23°CC±±2°C and 50%2°C and 50%±±5% HR.5% HR.
In special cases and with the consent of the relevant
In special cases and with the consent of the relevant
parties, dimensions can be verified after a pretreatment
parties, dimensions can be verified after a pretreatment
(stabilisation, humidity regain,...).
(stabilisation, humidity regain,...).
2. Tolerance classes
2. Tolerance classes
2.1. Choosing the tolerance class
2.1. Choosing the tolerance class
There are three main tolerance classes given in increasing
There are three main tolerance classes given in increasing
order of precision and cost required to obtain them:
order of precision and cost required to obtain them:
- normal tolerances,
- normal tolerances,
- reduced tolerances,
- reduced tolerances,
- precision tolerances.
- precision tolerances.
The general tolerances of a moulded plastic part must
The general tolerances of a moulded plastic part must
belong to the normal class.
belong to the normal class.
General tolerances apply to all dimensions that have no
General tolerances apply to all dimensions that have no
individual (or special) tolerances.
individual (or special) tolerances.
These tolerances are obtained by current manufacturing
These tolerances are obtained by current manufacturing
processes. No manufacturing means or inspection
processes. No manufacturing means or inspection
procedures are required.
procedures are required.
The special tolerances of a moulded plastic part must
The special tolerances of a moulded plastic part must
belong to the normal class or, in some cases, the
belong to the normal class or, in some cases, the
reduced class.
reduced class.
Special tolerances apply to functional dimensions and to
Special tolerances apply to functional dimensions and to
dimensions whose tolerances are clearly marked on the
dimensions whose tolerances are clearly marked on the
drawing.
drawing.
The reduced class and to an even greater extent the
The reduced class and to an even greater extent the
precision class, involve extra expenses for tooling and the
precision class, involve extra expenses for tooling and the
part.
part.
2.2. Information to be provided on the
2.2. Information to be provided on the
drawing
drawing
The tolerances applicable to the functional dimensions
The tolerances applicable to the functional dimensions
shall be clearly written on the drawing for the relevant
shall be clearly written on the drawing for the relevant
dimension(s), whatever class of precision is chosen. The
dimension(s), whatever class of precision is chosen. The
tolerances for the other dimensions are given by the
tolerances for the other dimensions are given by the
reference to the general tolerances.
reference to the general tolerances.
The information on general tolerances on the drawing is
The information on general tolerances on the drawing is
given in or around the title box. This information must
given in or around the title box. This information must
include:
include:
- the term « general tolerances »,
- the term « general tolerances »,
the number of the standard referred to (NF T 58 000),
the number of the standard referred to (NF T 58 000),
- the tolerance class,
- the tolerance class,
- the value of the injection threshold if required.
- the value of the injection threshold if required.
Examples:
Examples:
For a part in injected PA66 with general tolerances in
For a part in injected PA66 with general tolerances in
accordance with
accordance with the NF
the NF T 58
T 58 000 stand
000 standard, «
ard, « normal
normal »
»
tolerance class.
tolerance class.
general tolerances
general tolerances NF T 58
NF T 58 000 normal
000 normal class.
class.
For the same part, but with an injection threshold cut at
For the same part, but with an injection threshold cut at
±±
0.1 mm :
0.1 mm :
general tolerances NF T 58 000 normal class, injection
general tolerances NF T 58 000 normal class, injection
threshold
3. Dimensional tolerances for lengths,
3. Dimensional tolerances for lengths,
diameters, radii
diameters, radii
3.1.Choosing the right tolerance for the
3.1.Choosing the right tolerance for the
material
material
Table 1 below gives the tolerance category stipulated
Table 1 below gives the tolerance category stipulated
according to the polymer family. The materials listed are
according to the polymer family. The materials listed are
those used by Schneider.
those used by Schneider.
S
Syymmbbooll MMaatteerriiaall DDiimmeennssiioonnaall tolerance tolerance categories categories (see tables 2 to (see tables 2 to 11) 11) P
PAA UUnnffiilllleed d ppoollyyaammiiddees s PPAA66, , PPAA6666,, PA6/10, PA11, PA12
PA6/10, PA11, PA12
3 3
Filled and unfilled amorphous Filled and unfilled amorphous polyamides
polyamides
4 4
Filled PA6, PA66, PA6/10, PA11, Filled PA6, PA66, PA6/10, PA11, PA12
PA12
4 4
P
POOMM PPoollyyooxxyymmeetthhyylleennee 33 F
Fiilllleed d ppoollyyooxxyymmeetthhyylleennee 44 P
PBBTT UUnnffiilllleed d ppoollyy((bbuuttyylleenne e tteerreepphhttaallaattee)) 33 F
FiilllleeddPPBBTT 44 P
PEETT CCrryyssttaalllliinne e ppoolly y ((eetthhyylleennee terephthalate)
terephthalate)
3 3
Amorphous poly (ethylene Amorphous poly (ethylene terephtalate)
terephtalate)
4 4
Fi
Filllled ed popoly ly ((etethyhylelene ne ttererepephthtalalatate)e) 44 P
PPP FFiilllleed d ppoollyypprrooppyylleennee 33 Unfilled PP/EPDM modified
Unfilled PP/EPDM modified polypropylene
polypropylene
3 3
P
PPPEE UUnnmmooddiiffiieed d ppoollyy((pphheennyylleenne e eetthheerr)) 44 Unfilled modified poly(phenylene
Unfilled modified poly(phenylene ether)
ether)
4 4
Glass fiber reinforced modified Glass fiber reinforced modified poly(phenylene ether)
poly(phenylene ether)
4 4
P
PCC FFiilllleed d aannd d uunnffiilllleed d ppoollyyccaarrbboonnaattee 44 A ABBSS FFiilllleed d aannd d uunnffiilllleedd poly(acrylonitrile/butadiene/styrene) poly(acrylonitrile/butadiene/styrene) 4 4 P
PFF PPhheennoolliic c ppllaassttiiccs s PPFF2 2 CC33 11 Phenolic plastics PF2 A1, PF2 D1, Phenolic plastics PF2 A1, PF2 D1, PF2 D3, PF3 D4
PF2 D3, PF3 D4
2 2
U
UPP UUnnssaattuurraatteed pd poollyyeesstteerrs s ((mmoouullddiinngg compositions) compositions) 1 1 Preimpregnated (unsaturated Preimpregnated (unsaturated polyesters) polyesters) 2 2 E EPP EEppooxxyyddeess 11 PD
PDAPAP PoPolyly(d(diaiallllylyl-p-phthtalalatateses) (w) (witith orgh organanicic fillers)
fillers)
1 1
S
Syymmbbooll MMaatteerriiaall DDiimmeennssiioonnaall tolerance tolerance categories categories (see tables 2 to (see tables 2 to 11) 11) S SAANN FFiilllleed d aannd d uunnffiilllleedd poly(styrene/acrylonitrile) poly(styrene/acrylonitrile) 4 4 P
PMMMMAA PPoollyy((mmeetthhyyllmmeetthhaaccrryyllaattee)) 44 PU
PURR TTheherrmmopoplalassttiic c ppololyyurureetthahanenes s SShhororee hardness
hardness>>5050
3 3
P
PVVCC--UU UUnnppllaassttiicciisseed d ppoollyy((vviinnyyl l cchhlloorriiddee)) 44 P
PSSUU FFiilllleed d oor r uunnffiilllleed d ppoollyyssuullffoonnee 44 P
PPPSS RReeiinnffoorrcceed d ppoollyy((pphheennyylleenne e ssuullpphhiiddee)) 44 P
PEESS UUnnffiilllleed d ppoollyy((eetthheerrssuullffoonnee)) 44 PU
PURR TTheherrmmopoplalassttiic c ppololyyurureetthahanenes s SShhororee hardness
hardness≤≤50 (1)50 (1)
5 5
P
PEE UUnnffiilllleed d ppoollyyeetthhyylleenneess 55 P
PPP UUnnffiilllleed d ppoollyypprrooppyylleenneess 55 PVC
PVC-P-P PlPlasastiticicisesed pd pololy(y(vivinynyl cl chlhlororidide) e) ShShororee D hardness
D hardness>>50 (1)50 (1)
3 3
Plasticised poly(vinyl chloride) Shore Plasticised poly(vinyl chloride) Shore D hardness
D hardness≤≤50 (1)50 (1)
5 5
F
FEEPP PPeerrfflluuoorriidde e ppoollyy((eetthhyylleennee//pprrooppyylleennee)) 55
(1) a Shore D hardness of 50 corresponds to a Shore A hardness (1) a Shore D hardness of 50 corresponds to a Shore A hardness of 93-94
3.2. Category 1
3.2. Category 1
..
Table 2 - Deviations for dimensions not including
Table 2 - Deviations for dimensions not including
the parting line
the parting line
Di
Dimenmensiosions ns (mm(mm)) TolToleraerance nce claclassss n
noorrmmaall rreedduucceedd pprreecciissiioonn a a≤≤11 ±±0.130.13 ±±0.060.06 ±±0.040.04 1 1<<aa≤≤33 ±±0.150.15 ±±0.070.07 ±±0.050.05 3 3<<aa≤≤66 ±±0.170.17 ±±0.080.08 ±±0.060.06 6 6<<aa≤≤1010 ±±0.200.20 ±±0.090.09 ±±0.070.07 10 10<<aa≤≤1515 ±±0.220.22 ±±0.100.10 ±±0.080.08 15 15<<aa≤≤2222 ±±0.250.25 ±±0.110.11 ±±0.090.09 22 22<<aa≤≤3030 ±±0.270.27 ±±0.130.13 ±±0.100.10 30 30<<aa≤≤4040 ±±0.300.30 ±±0.150.15 ±±0.110.11 40 40<<aa≤≤5353 ±±0.330.33 ±±0.170.17 ±±0.130.13 53 53<<aa≤≤7070 ±±0.380.38 ±±0.200.20 ±±0.150.15 70 70<<aa≤≤9090 ±±0.430.43 ±±0.240.24 ±±0.170.17 90 90<<aa≤≤115115 ±±0.500.50 ±±0.290.29 ±±0.200.20 115 115<<aa≤≤150150 ±±0.600.60 ±±0.350.35 ±±0.240.24 150 150<<aa≤≤200200 ±±0.750.75 ±±0.440.44 ±±0.300.30 200 200<<aa≤≤250250 ±±0.900.90 ±±0.550.55 ±±0.360.36 250 250<<aa≤≤315315 ±±1.101.10 ±±0.600.60 ±±0.440.44 315 315<<aa≤≤400400 ±±1.301.30 ±±0.850.85 ±±0.550.55 400 400<<aa≤≤500500 ±±1.501.50 ±±1.001.00 ±±0.650.65 500 500<<aa≤≤630630 ±±1.901.90 ±±1.201.20 ±±0.800.80 630 630<<aa≤≤800800 ±±2.402.40 ±±1.501.50 ±±1.001.00 800 800<<aa≤≤1 0001 000 ±±2.902.90 ±±1.901.90 ±±1.301.30 1 000 1 000<<aa≤≤1 3001 300 ±±3.603.60 ±±2.402.40 ±±1.701.70 1 300 1 300<<aa≤≤1 6001 600 ±±4.404.40 ±±3.103.10 ±±2.202.20 1 600 1 600<<aa≤≤2 0002 000 ±±5.405.40 ±±3.903.90 ±±2.702.70
Table 3 - Deviations for dimensions including the
Table 3 - Deviations for dimensions including the
parting or sliding line
parting or sliding line
Di
Dimenmensiosions ns (mm(mm)) TolToleraerance nce claclassss n
noorrmmaall rreedduucceedd pprreecciissiioonn a a≤≤11 ±±0.230.23 ±±0.160.16 ±±0.140.14 1 1<<aa≤≤33 ±±0.250.25 ±±0.170.17 ±±0.150.15 3 3<<aa≤≤66 ±±0.270.27 ±±0.180.18 ±±0.160.16 6 6<<aa≤≤1010 ±±0.300.30 ±±0.190.19 ±±0.170.17 10 10<<aa≤≤1515 ±±0.320.32 ±±0.200.20 ±±0.180.18 15 15<<aa≤≤2222 ±±0.350.35 ±±0.210.21 ±±0.190.19 22 22<<aa≤≤3030 ±±0.370.37 ±±0.230.23 ±±0.200.20 30 30<<aa≤≤4040 ±±0.400.40 ±±0.250.25 ±±0.210.21 40 40<<aa≤≤5353 ±±0.430.43 ±±0.270.27 ±±0.230.23 53 53<<aa≤≤7070 ±±0.480.48 ±±0.300.30 ±±0.250.25 70 70<<aa≤≤9090 ±±0.550.55 ±±0.340.34 ±±0.270.27 90 90<<aa≤≤115115 ±±0.600.60 ±±0.390.39 ±±0.300.30 115 115<<aa≤≤150150 ±±0.700.70 ±±0.450.45 ±±0.340.34 150 150<<aa≤≤200200 ±±0.850.85 ±±0.550.55 ±±0.400.40 200 200<<aa≤≤250250 ±±1.001.00 ±±0.650.65 ±±0.460.46 250 250<<aa≤≤315315 ±±1.201.20 ±±0.700.70 ±±0.550.55 315 315<<aa≤≤400400 ±±1.401.40 ±±0.950.95 ±±0.650.65 400 400<<aa≤≤500500 ±±1.601.60 ±±1.101.10 ±±0.750.75 500 500<<aa≤≤630630 ±±2.002.00 ±±1.301.30 ±±0.900.90 630 630<<aa≤≤800800 ±±2.502.50 ±±1.601.60 ±±1.101.10 800 800<<aa≤≤1 0001 000 ±±3.003.00 ±±2.002.00 ±±1.401.40 1 000 1 000<<aa≤≤1 3001 300 ±±3.703.70 ±±2.502.50 ±±1.801.80 1 300 1 300<<aa≤≤1 6001 600 ±±4.504.50 ±±3.203.20 ±±2.302.30 1 600 1 600<<aa≤≤2 0002 000 ±±5.505.50 ±±4.004.00 ±±2.802.80
3.3. Category 2
3.3. Category 2
Table 4 - Deviations for dimensions not including
Table 4 - Deviations for dimensions not including
the parting line
the parting line
Dim
Dimensensionions s (mm(mm)) TolToleraerance nce claclassss n
noorrmmaall rreedduucceedd pprreecciissiioonn a a≤≤11 ±±0.130.13 ±±0.080.08 ±±0.060.06 1 1<<aa≤≤33 ±±0.150.15 ±±0.090.09 ±±0.070.07 3 3<<aa≤≤66 ±±0.170.17 ±±0.100.10 ±±0.080.08 6 6<<aa≤≤1010 ±±0.200.20 ±±0.110.11 ±±0.090.09 10 10<<aa≤≤1515 ±±0.220.22 ±±0.130.13 ±±0.100.10 15 15<<aa≤≤2222 ±±0.250.25 ±±0.150.15 ±±0.110.11 22 22<<aa≤≤3030 ±±0.280.28 ±±0.170.17 ±±0.130.13 30 30<<aa≤≤4040 ±±0.320.32 ±±0.200.20 ±±0.150.15 40 40<<aa≤≤5353 ±±0.370.37 ±±0.240.24 ±±0.170.17 53 53<<aa≤≤7070 ±±0.440.44 ±±0.280.28 ±±0.200.20 70 70<<aa≤≤9090 ±±0.500.50 ±±0.340.34 ±±0.240.24 90 90<<aa≤≤115115 ±±0.600.60 ±±0.410.41 ±±0.290.29 115 115<<aa≤≤150150 ±±0.750.75 ±±0.500.50 ±±0.350.35 150 150<<aa≤≤200200 ±±0.950.95 ±±0.650.65 ±±0.450.45 200 200<<aa≤≤250250 ±±1.151.15 ±±0.800.80 ±±0.550.55 250 250<<aa≤≤315315 ±±1.401.40 ±±1.001.00 ±±0.700.70 315 315<<aa≤≤400400 ±±1.751.75 ±±1.201.20 ±±0.850.85 400 400<<aa≤≤500500 ±±2.202.20 ±±1.501.50 ±±1.001.00 500 500<<aa≤≤630630 ±±2.802.80 ±±1.901.90 ±±1.201.20 630 630<<aa≤≤800800 ±±3.503.50 ±±2.402.40 ±±1.501.50 800 800<<aa≤≤1 0001 000 ±±4.404.40 ±±2.902.90 ±±1.901.90
Table 5 - Deviations for dimensions including the
Table 5 - Deviations for dimensions including the
parting or sliding line
parting or sliding line
Dim
Dimensensionions s (mm(mm)) TolToleraerance nce claclassss n
noorrmmaall rreedduucceedd pprreecciissiioonn a a≤≤11 ±±0.230.23 ±±0.180.18 ±±0.160.16 1 1<<aa≤≤33 ±±0.250.25 ±±0.190.19 ±±0.170.17 3 3<<aa≤≤66 ±±0.270.27 ±±0.200.20 ±±0.180.18 6 6<<aa≤≤1010 ±±0.290.29 ±±0.210.21 ±±0.190.19 10 10<<aa≤≤1515 ±±0.320.32 ±±0.230.23 ±±0.200.20 15 15<<aa≤≤2222 ±±0.350.35 ±±0.250.25 ±±0.210.21 22 22<<aa≤≤3030 ±±0.380.38 ±±0.270.27 ±±0.230.23 30 30<<aa≤≤4040 ±±0.420.42 ±±0.300.30 ±±0.250.25 40 40<<aa≤≤5353 ±±0.470.47 ±±0.340.34 ±±0.270.27 53 53<<aa≤≤7070 ±±0.550.55 ±±0.380.38 ±±0.300.30 70 70<<aa≤≤9090 ±±0.600.60 ±±0.440.44 ±±0.340.34 90 90<<aa≤≤115115 ±±0.700.70 ±±0.500.50 ±±0.390.39 115 115<<aa≤≤150150 ±±0.850.85 ±±0.600.60 ±±0.450.45 150 150<<aa≤≤200200 ±±1.101.10 ±±0.750.75 ±±0.550.55 200 200<<aa≤≤250250 ±±1.301.30 ±±0.900.90 ±±0.650.65 250 250<<aa≤≤315315 ±±1.501.50 ±±1.101.10 ±±0.800.80 315 315<<aa≤≤400400 ±±1.901.90 ±±1.301.30 ±±0.950.95 400 400<<aa≤≤500500 ±±2.302.30 ±±1.601.60 ±±1.101.10 500 500<<aa≤≤630630 ±±2.902.90 ±±2.002.00 ±±1.301.30 630 630<<aa≤≤800800 ±±3.603.60 ±±2.502.50 ±±1.601.60 800 800<<aa≤≤1 0001 000 ±±4.504.50 ±±3.003.00 ±±2.402.40
3.4. Category 3
3.4. Category 3
Table 6 - Deviations for dimensions not including
Table 6 - Deviations for dimensions not including
the parting line
the parting line
Di
Dimenmensiosions ns (mm(mm)) TolToleraerance nce claclassss n
noorrmmaall rreedduucceedd pprreecciissiioonn a a≤≤11 ±±0.130.13 ±±0.080.08 ±±0.060.06 1 1<<aa≤≤33 ±±0.150.15 ±±0.090.09 ±±0.070.07 3 3<<aa≤≤66 ±±0.170.17 ±±0.100.10 ±±0.080.08 6 6<<aa≤≤1010 ±±0.200.20 ±±0.110.11 ±±0.090.09 10 10<<aa≤≤1515 ±±0.220.22 ±±0.130.13 ±±0.100.10 15 15<<aa≤≤2222 ±±0.250.25 ±±0.150.15 ±±0.110.11 22 22<<aa≤≤3030 ±±0.280.28 ±±0.170.17 ±±0.130.13 30 30<<aa≤≤4040 ±±0.320.32 ±±0.200.20 ±±0.150.15 40 40<<aa≤≤5353 ±±0.370.37 ±±0.240.24 ±±0.170.17 53 53<<aa≤≤7070 ±±0.440.44 ±±0.280.28 ±±0.200.20 70 70<<aa≤≤9090 ±±0.500.50 ±±0.340.34 ±±0.240.24 90 90<<aa≤≤115115 ±±0.600.60 ±±0.410.41 ±±0.290.29 115 115<<aa≤≤150150 ±±0.750.75 ±±0.500.50 ±±0.350.35 150 150<<aa≤≤200200 ±±0.950.95 ±±0.650.65 ±±0.450.45 200 200<<aa≤≤250250 ±±1.201.20 ±±0.800.80 ±±0.550.55 250 250<<aa≤≤315315 ±±1.401.40 ±±0.950.95 ±±0.660.66 315 315<<aa≤≤400400 ±±1.801.80 ±±1.201.20 ±±0.820.82 400 400<<aa≤≤500500 ±±2.202.20 ±±1.501.50 ±±1.001.00 500 500<<aa≤≤630630 ±±2.802.80 ±±1.901.90 ±±1.201.20 630 630<<aa≤≤800800 ±±3.503.50 ±±2.402.40 ±±1.501.50 800 800<<aa≤≤1 0001 000 ±±4.404.40 ±±2.902.90 ±±1.901.90
Table 7 - Deviations for dimensions including the
Table 7 - Deviations for dimensions including the
parting or sliding line
parting or sliding line
Di
Dimenmensiosions ns (mm(mm)) TolToleraerance nce claclassss n
noorrmmaall rreedduucceedd pprreecciissiioonn a a≤≤11 ±±0.160.16 ±±0.110.11 ±±0.090.09 1 1<<aa≤≤33 ±±0.180.18 ±±0.120.12 ±±0.100.10 3 3<<aa≤≤66 ±±0.200.20 ±±0.130.13 ±±0.110.11 6 6<<aa≤≤1010 ±±0.220.22 ±±0.140.14 ±±0.120.12 10 10<<aa≤≤1515 ±±0.250.25 ±±0.160.16 ±±0.130.13 15 15<<aa≤≤2222 ±±0.280.28 ±±0.180.18 ±±0.140.14 22 22<<aa≤≤3030 ±±0.310.31 ±±0.200.20 ±±0.160.16 30 30<<aa≤≤4040 ±±0.350.35 ±±0.230.23 ±±0.180.18 40 40<<aa≤≤5353 ±±0.400.40 ±±0.270.27 ±±0.200.20 53 53<<aa≤≤7070 ±±0.470.47 ±±0.310.31 ±±0.230.23 70 70<<aa≤≤9090 ±±0.550.55 ±±0.370.37 ±±0.270.27 90 90<<aa≤≤115115 ±±0.650.65 ±±0.440.44 ±±0.320.32 115 115<<aa≤≤150150 ±±0.800.80 ±±0.550.55 ±±0.380.38 150 150<<aa≤≤200200 ±±1.001.00 ±±0.700.70 ±±0.480.48 200 200<<aa≤≤250250 ±±1.301.30 ±±0.850.85 ±±0.600.60 250 250<<aa≤≤315315 ±±1.501.50 ±±1.001.00 ±±0.700.70 315 315<<aa≤≤400400 ±±1.901.90 ±±1.301.30 ±±0.850.85 400 400<<aa≤≤500500 ±±2.302.30 ±±1.601.60 ±±1.101.10 500 500<<aa≤≤630630 ±±2.902.90 ±±2.002.00 ±±1.301.30 630 630<<aa≤≤800800 ±±3.603.60 ±±2.502.50 ±±1.601.60 800 800<<aa≤≤1 0001 000 ±±4.504.50 ±±3.003.00 ±±2.002.00
3.5. Category 4
3.5. Category 4
Table 8 - Deviations for dimensions not including
Table 8 - Deviations for dimensions not including
the parting line
the parting line
Dim
Dimensensionions s (mm(mm)) TolToleraerance nce claclassss n
noorrmmaall rreedduucceedd pprreecciissiioonn a a≤≤11 ±±0.130.13 ±±0.060.06 ±±0.040.04 1 1<<aa≤≤33 ±±0.150.15 ±±0.070.07 ±±0.050.05 3 3<<aa≤≤66 ±±0.170.17 ±±0.080.08 ±±0.060.06 6 6<<aa≤≤1010 ±±0.200.20 ±±0.090.09 ±±0.070.07 10 10<<aa≤≤1515 ±±0.220.22 ±±0.100.10 ±±0.080.08 15 15<<aa≤≤2222 ±±0.250.25 ±±0.110.11 ±±0.090.09 22 22<<aa≤≤3030 ±±0.270.27 ±±0.130.13 ±±0.100.10 30 30<<aa≤≤4040 ±±0.300.30 ±±0.150.15 ±±0.110.11 40 40<<aa≤≤5353 ±±0.350.35 ±±0.170.17 ±±0.130.13 53 53<<aa≤≤7070 ±±0.380.38 ±±0.200.20 ±±0.150.15 70 70<<aa≤≤9090 ±±0.430.43 ±±0.240.24 ±±0.170.17 90 90<<aa≤≤115115 ±±0.500.50 ±±0.290.29 ±±0.200.20 115 115<<aa≤≤150150 ±±0.600.60 ±±0.350.35 ±±0.240.24 150 150<<aa≤≤200200 ±±0.750.75 ±±0.440.44 ±±0.300.30 200 200<<aa≤≤250250 ±±0.900.90 ±±0.550.55 ±±0.360.36 250 250<<aa≤≤315315 ±±1.101.10 ±±0.700.70 ±±0.440.44 315 315<<aa≤≤400400 ±±1.301.30 ±±0.850.85 ±±0.550.55 400 400<<aa≤≤500500 ±±1.501.50 ±±1.001.00 ±±0.650.65 500 500<<aa≤≤630630 ±±1.901.90 ±±1.201.20 ±±0.800.80 630 630<<aa≤≤800800 ±±2.402.40 ±±1.501.50 ±±1.001.00 800 800<<aa≤≤1 0001 000 ±±2.902.90 ±±1.901.90 ±±1.251.25
Table 9 - Deviations for dimensions including the
Table 9 - Deviations for dimensions including the
parting or sliding line
parting or sliding line
Dim
Dimensensionions s (mm(mm)) TolToleraerance nce claclassss n
noorrmmaall rreedduucceedd pprreecciissiioonn a a≤≤11 ±±0.160.16 ±±0.090.09 ±±0.070.07 1 1<<aa≤≤33 ±±0.180.18 ±±0.100.10 ±±0.080.08 3 3<<aa≤≤66 ±±0.200.20 ±±0.110.11 ±±0.090.09 6 6<<aa≤≤1010 ±±0.230.23 ±±0.120.12 ±±0.100.10 10 10<<aa≤≤1515 ±±0.250.25 ±±0.130.13 ±±0.110.11 15 15<<aa≤≤2222 ±±0.280.28 ±±0.140.14 ±±0.120.12 22 22<<aa≤≤3030 ±±0.300.30 ±±0.160.16 ±±0.130.13 30 30<<aa≤≤4040 ±±0.330.33 ±±0.180.18 ±±0.140.14 40 40<<aa≤≤5353 ±±0.360.36 ±±0.200.20 ±±0.160.16 53 53<<aa≤≤7070 ±±0.410.41 ±±0.230.23 ±±0.180.18 70 70<<aa≤≤9090 ±±0.460.46 ±±0.270.27 ±±0.200.20 90 90<<aa≤≤115115 ±±0.550.55 ±±0.320.32 ±±0.230.23 115 115<<aa≤≤150150 ±±0.650.65 ±±0.380.38 ±±0.270.27 150 150<<aa≤≤200200 ±±0.800.80 ±±0.470.47 ±±0.330.33 200 200<<aa≤≤250250 ±±0.950.95 ±±0.600.60 ±±0.390.39 250 250<<aa≤≤315315 ±±1.201.20 ±±0.750.75 ±±0.470.47 315 315<<aa≤≤400400 ±±1.401.40 ±±0.900.90 ±±0.600.60 400 400<<aa≤≤500500 ±±1.601.60 ±±1.101.10 ±±0.700.70 500 500<<aa≤≤630630 ±±2.002.00 ±±1.301.30 ±±0.850.85 630 630<<aa≤≤800800 ±±2.502.50 ±±1.601.60 ±±1.101.10 800 800<<aa≤≤1 0001 000 ±±3.003.00 ±±2.002.00 ±±1.301.30
3.6. Category 5
3.6. Category 5
Table 10 - Deviations for dimensions not
Table 10 - Deviations for dimensions not
including the parting line
including the parting line
Di
Dimenmensiosions ns (mm(mm)) TolToleraerance nce claclassss n
noorrmmaall rreedduucceedd pprreecciissiioonn a a≤≤11 ±±0.130.13 ±±0.100.10 ±±0.080.08 1 1<<aa≤≤33 ±±0.150.15 ±±0.110.11 ±±0.090.09 3 3<<aa≤≤66 ±±0.170.17 ±±0.120.12 ±±0.100.10 6 6<<aa≤≤1010 ±±0.200.20 ±±0.140.14 ±±0.110.11 10 10<<aa≤≤1515 ±±0.240.24 ±±0.170.17 ±±0.130.13 15 15<<aa≤≤2222 ±±0.280.28 ±±0.200.20 ±±0.150.15 22 22<<aa≤≤3030 ±±0.330.33 ±±0.240.24 ±±0.170.17 30 30<<aa≤≤4040 ±±0.390.39 ±±0.280.28 ±±0.200.20 40 40<<aa≤≤5353 ±±0.470.47 ±±0.330.33 ±±0.240.24 53 53<<aa≤≤7070 ±±0.580.58 ±±0.400.40 ±±0.280.28 70 70<<aa≤≤9090 ±±0.710.71 ±±0.500.50 ±±0.340.34 90 90<<aa≤≤120120 ±±0.870.87 ±±0.600.60 ±±0.410.41 120 120<<aa≤≤160160 ±±1.101.10 ±±0.750.75 ±±0.500.50 160 160<<aa≤≤200200 ±±1.401.40 ±±0.950.95 ±±0.600.60 200 200<<aa≤≤250250 ±±1.701.70 ±±1.151.15 ±±0.800.80 250 250<<aa≤≤315315 ±±2.102.10 ±±1.451.45 ±±1.001.00 315 315<<aa≤≤400400 ±±2.702.70 ±±1.801.80 ±±1.201.20 400 400<<aa≤≤500500 ±±3.303.30 ±±2.202.20 ±±1.501.50 500 500<<aa≤≤630630 ±±4.204.20 ±±2.802.80 ±±1.901.90 630 630<<aa≤≤800800 ±±5.205.20 ±±3.503.50 ±±2.402.40 800 800<<aa≤≤1 0001 000 ±±6.506.50 ±±4.404.40 ±±2.902.90
Table 11 - Deviations for dimensions including
Table 11 - Deviations for dimensions including
the parting or sliding line
the parting or sliding line
Di
Dimenmensiosions ns (mm(mm)) TolToleraerance nce claclassss n
noorrmmaall rreedduucceedd pprreecciissiioonn a a≤≤11 ±±0.230.23 ±±0.200.20 ±±0.180.18 1 1<<aa≤≤33 ±±0.250.25 ±±0.210.21 ±±0.190.19 3 3<<aa≤≤66 ±±0.270.27 ±±0.220.22 ±±0.200.20 6 6<<aa≤≤1010 ±±0.300.30 ±±0.240.24 ±±0.210.21 10 10<<aa≤≤1515 ±±0.340.34 ±±0.270.27 ±±0.230.23 15 15<<aa≤≤2222 ±±0.380.38 ±±0.300.30 ±±0.250.25 22 22<<aa≤≤3030 ±±0.430.43 ±±0.340.34 ±±0.270.27 30 30<<aa≤≤4040 ±±0.490.49 ±±0.380.38 ±±0.300.30 40 40<<aa≤≤5353 ±±0.570.57 ±±0.430.43 ±±0.340.34 53 53<<aa≤≤7070 ±±0.680.68 ±±0.500.50 ±±0.380.38 70 70<<aa≤≤9090 ±±0.810.81 ±±0.600.60 ±±0.440.44 90 90<<aa≤≤120120 ±±0.970.97 ±±0.700.70 ±±0.550.55 120 120<<aa≤≤160160 ±±1.201.20 ±±0.850.85 ±±0.600.60 160 160<<aa≤≤200200 ±±1.501.50 ±±1.051.05 ±±0.700.70 200 200<<aa≤≤250250 ±±1.801.80 ±±1.251.25 ±±0.900.90 250 250<<aa≤≤315315 ±±2.202.20 ±±1.551.55 ±±1.101.10 315 315<<aa≤≤400400 ±±2.802.80 ±±1.901.90 ±±1.301.30 400 400<<aa≤≤500500 ±±3.403.40 ±±2.302.30 ±±1.601.60 500 500<<aa≤≤630630 ±±4.304.30 ±±2.902.90 ±±2.002.00 630 630<<aa≤≤800800 ±±5.305.30 ±±3.603.60 ±±2.502.50 800 800<<aa≤≤1 0001 000 ±±6.606.60 ±±4.504.50 ±±3.003.00
3.7. Tolerances applicable to high precision
3.7. Tolerances applicable to high precision
parts
parts
Table 12 - Deviations for dimensions not
Table 12 - Deviations for dimensions not
including the parting line
including the parting line
D
Diimmeennssiioonns s ((mmmm)) TToolleerraanncceess a a≤≤11 ±±0.0250.025 1 1<<aa≤≤33 ±±0.030.03 3 3<<aa≤≤66 ±±0.0350.035 6 6<<aa≤≤1010 ±±0.040.04 10 10<<aa≤≤1515 ±±0.050.05 15 15<<aa≤≤2222 ±±0.060.06 22 22<<aa≤≤3030 ±±0.070.07 30 30<<aa≤≤4040 ±±0.080.08 40 40<<aa≤≤5555 ±±0.090.09 55 55<<aa≤≤7070 ±±0.100.10
Table 13 - Deviations for dimensions including
Table 13 - Deviations for dimensions including
the parting or sliding line
the parting or sliding line
D
Diimmeennssiioonns s ((mmmm)) TToolleerraanncceess a a≤≤11 ±±0.050.05 1 1<<aa≤≤33 ±±0.060.06 3 3<<aa≤≤66 ±±0.070.07 6 6<<aa≤≤1010 ±±0.080.08 10 10<<aa≤≤1515 ±±0.100.10 15 15<<aa≤≤2222 ±±0.110.11 22 22<<aa≤≤3030 ±±0.120.12 30 30<<aa≤≤4040 ±±0.130.13 40 40<<aa≤≤5555 --55 55<<aa≤≤7070
--3.8.Fillets, chamfers and connecting radii up
3.8.Fillets, chamfers and connecting radii up
to 2 mm
to 2 mm
Normal class:
Normal class:
±±25 % of rated value, deviation rounded off
25 % of rated value, deviation rounded off
to the upper 1/10.
to the upper 1/10.
Table 14
Table 14
R
Raatteed d ddiimmeennssiioon n ((mmmm)) DDeevviiaattiioon n ((mmmm)) 0.3 (1) 0.3 (1) ±±0.100.10 0.5 0.5 ±±0.200.20 1 1 ±±0.300.30 1.5 1.5 ±±0.400.40 2 2 ±±0.500.50
(1) To be avoided
(1) To be avoided
3.9. Dimensioned angle
3.9. Dimensioned angle
The deviation
The deviation
∆α∆αon the angle is measured taking the large
on the angle is measured taking the large
side as the reference base.
side as the reference base.
Figure 1
Figure 1
Table 15 - Permissible deviation
Table 15 - Permissible deviation
∆∆ α∆∆αααL L NNoorrmmaal l ccllaassss RReedduucceedd class class Precision Precision class class ≤ ≤1010 ±±3°3° ±±1°30'1°30' ±±1°1° 10 10<<LL≤≤5050 ±±2°2° ±±50'50' ±±30'30' 50 50<<LL≤≤120120 ±±1°1° ±±25'25' ±±20'20' > >120120 ±±30'30' ±±15'15' ±±10'10'
4. Shape and position tolerances
4. Shape and position tolerances
4.1. Clearance
4.1. Clearance
Normal class: 0 to 1°
Normal class: 0 to 1°
Unless otherwise stated on the drawing:
Unless otherwise stated on the drawing:
-- for projecting or extern
for projecting or external parts, clearance is to be take
al parts, clearance is to be taken
n
away from the dimension given. The tolerance only
away from the dimension given. The tolerance only
applies to the largest part.
applies to the largest part.
-- for hollow or internal pa
for hollow or internal parts, clearance is to be
rts, clearance is to be added to the
added to the
dimension given. The tolerance only applies to the
dimension given. The tolerance only applies to the
smallest part.
smallest part.
Figure 2
Figure 2
equivalent to taking the value indicated in the tables but
equivalent to taking the value indicated in the tables but
without the signs.
without the signs.
Example: the permissible roundness of a 35 mm diameter
Example: the permissible roundness of a 35 mm diameter
part in unfilled PA 66: in normal class, according to table 6,
part in unfilled PA 66: in normal class, according to table 6,
the deviation is 0.32 mm.
the deviation is 0.32 mm.
4.3. Perpendicularity
4.3. Perpendicularity
Perpendicularity tolerance of an item with respect to a
Perpendicularity tolerance of an item with respect to a
reference without allowing for clearance, in normal class:
reference without allowing for clearance, in normal class:
less than
less than
±±15'.
15'.
4.4. Level of ejector traces
4.4. Level of ejector traces
The permissible cavity or raised part must be determined
The permissible cavity or raised part must be determined
jointly by all relevant parties within the range of 0.05 to
jointly by all relevant parties within the range of 0.05 to
0.30 mm in normal class.
0.30 mm in normal class.
4.5. Offset due to mould parts
4.5. Offset due to mould parts
Unless otherwise stated on the drawing, the dimension
Unless otherwise stated on the drawing, the dimension
considered on the part is overall dimension Y (figures 3 to
considered on the part is overall dimension Y (figures 3 to
5).
5).
Offset between two moving parts.
Offset between two moving parts.
Figure 3
Figure 3
Offset between fixed parts
Offset between fixed parts
Figure 4
Figure 4
Connection
Connection
Figure 5
Figure 5
4.6. Sink marks for thermoplastics (1)
4.6. Sink marks for thermoplastics (1)
According to the B/A thickness ratio, in normal class:
According to the B/A thickness ratio, in normal class:
-- ra
rati
tio
o
∼∼1 : X = 0.10 mm maxi,
1 : X = 0.10 mm maxi,
-- ra
rati
tio
o
∼∼2 : X = 0.20 mm maxi,
2 : X = 0.20 mm maxi,
-- ra
rati
tio
o
∼∼3 : X = 0.30 mm maxi.
3 : X = 0.30 mm maxi.
Figure 6
Figure 6
(1) The data concerning thermosets are not standardised.
(1) The data concerning thermosets are not standardised.
5. Finishing tolerances
5. Finishing tolerances
5.1. Flash
5.1. Flash
Flash at the parting line and on the ejector trace shall not
Flash at the parting line and on the ejector trace shall not
exceed a projection of 0.15 mm in
exceed a projection of 0.15 mm in the normal class.
the normal class.
Wear bead at the parting line (thermosetting); in normal
Wear bead at the parting line (thermosetting); in normal
class: 0.3 mm maxi.
class: 0.3 mm maxi.
5.2. Injection threshold
5.2. Injection threshold
In normal class, projection or cavity value according to the
In normal class, projection or cavity value according to the
removal method chosen, if no special details are provided
removal method chosen, if no special details are provided
on the drawing:
on the drawing:
Removal method Removal method g
grroouunndd ccuutt bbrrookkeenn Thermosetting
Thermosetting ±±0.200.20 + + 00..66 + + 11..55 +
+00 --00..33 T
Thheerrmmooppllaassttiicc -- ±±0.200.20 + 1+ 1 - 0.5 - 0.5