Conical Washers Steel Series 246 020 Belleville
User Manual: Steel Series 246-020
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AUTOMOTIVE INDUSTRY FASTENERS
Conical or Belleville Washers
A Belleville washer, also known as a conical spring washer, is a type of non-flat washer. It has a slight cone shape
which gives the washer a spring like characteristic. Belleville washers are typically used as springs, or to apply a
pre-load or flexible quality to a bolted joint.
In certain applications with low dynamic loads, these washers may be used as locking devices. Belleville washers
are seen on Formula One cars, as they provide extremely thorough tuning ability. Another example where they aid
in locking is a joint that experiences a large amount of thermal expansion and contraction. They will supply the re-
quired pre-load, but the bolt may require an additional locking mechanism, such as Loctite, that would fail without
the Belleville.
Multiple Belleville washers may be stacked to modify the spring constant or amount of deflection. Stacking in the
same direction will add the spring constant in parallel, creating a stiffer joint (with the same deflection). Stacking in
an alternating direction is the same as adding springs in series, resulting in a lower sprint constant and great deflec-
tion. Mixing and matching directions allow a specific spring constant and deflection capacity to be designed.
Example: 1 Spring is considered to be 1 in Parallel, 1 in Series. (This notation is needed for load calculations)
Part # Inside Diameter
Min-Max Outside Diameter
Min-Max Free Height
Min—Max Thickness
Min –Max Material
CB2-375025 .091-.095 .373-.377 .058-.060 .025 Spring Steel
CB2-250015 .092-.097 .245-.255 .026-.030 .015 Spring Steel
CB2-182006 .093-.103 .177-.187 .013 .006 Spring Steel
CB2-182010 .093-.103 .177-.187 .015 .010 Spring Steel
CB3-302012 .109-.112 .300-.305 .050-.060 .012 Spring Steel
CB4-312032 .120-.130 .302-.322 .042-.058 .032 Spring Steel
CB4-242031 .122 .242 .047 .031 Spring Steel
CB4-245009 .125-.135 .240-.250 .017 .009 Spring Steel
CB4-245013 .125-.135 .240-.250 .020 .013 Spring Steel
CB4-370018 .125-.135 .365-.375 .029 .018 Spring Steel
CB4-245008 .129 .245 .021 .008 Spring Steel
CB4-300013 .129-.136 .295-.305 .036-.050 .013 Spring Steel
CB4-246007 .132 .246 .020 .007 Spring Steel
CB4-250020 .132 .250 .045 .020 Spring Steel
CB6-375025 .138-.143 .365-.385 .055-.070 .025 Spring Steel
Available Standard Sizes — Belleville Washers Spring Steel
AUTOMOTIVE INDUSTRY FASTENERS
Conical or Belleville Washers
Part # Inside Diameter
Min-Max Outside Diameter
Min-Max Free Height
Min—Max Thickness
Min –Max Material
CB6-278015 .139 .278 .029 .015 Spring Steel
CB6-277020 .142 .277 .037 .020 Spring Steel
CB6-277014 .144 .277 .024 .014 Spring Steel
CB6-278012 .144 .278 .033 .010 Spring Steel
CB6-300012 .145 .300 .053 .012 Spring Steel
CB6-320025 .147 .320 .049 .025 Spring Steel
CB6-312015 .155 .312 .026 .015 Spring Steel
CB6-307010 .156-.166 .302-.312 .021 .010 Spring Steel
CB6-307016 .156-.166 .302-.312 .025 .016 Spring Steel
CB6-313016 .157 .313 .028 .016 Spring Steel
CB6-308010 .160 .308 .024 .010 Spring Steel
CB6-308023 .160 .308 .035 .023 Spring Steel
CB8-437031 .164-.170 .433-.443 .062-.070 .031 Spring Steel
CB8-347017 .165 .341 .033 .017 Spring Steel
CB8-100064 .166 1.000 .220 .064 Spring Steel
CB8-339018 .171 .339 .035 .018 Spring Steel
CB8-348040 .174 .348 .095 .040 Spring Steel
CB8-438040 .174 .438 .056 .042 Spring Steel
CB8-5000-30 .180 .500 .058 .030 Spring Steel
CB8-5100-30 .180 .511 .048 .028 Spring Steel
CB10-132032 .190 1.321 .046 .032 Spring Steel
CB10-562040 .190-.195 .552—.572 .070-.090 .040 Spring Steel
CB10-370015 .190-.200 .365-.375 .027 .015 Spring Steel
CB10-370018 .190-.200 .365-.375 .028 .018 Spring Steel
Available Standard Sizes — Belleville Washers
For other material options such as 18-8 Stainless steel or 410 S/S please contact our sales dept., or submit your
request with our online quote form.
AUTOMOTIVE INDUSTRY FASTENERS
Conical or Belleville Washers
Part # Inside Diameter
Min-Max Outside Diameter
Min-Max Free Height
Min—Max Thickness
Min –Max Material
CB10-370020 .190-.200 .365-.375 .030 .020 Spring Steel
CB10-557028 .190-.200 .552-.562 .042 .028 Spring Steel
CB10-313015 .192 .313 .031 .015 Spring Steel
CB10-366008 .192 .366 .028 .008 Spring Steel
CB10-373013 .194 .373 .030 .013 Spring Steel
CB10-373019 .194 .373 .030 .019 Spring Steel
CB10-374015 .195 .374 .030 .015 Spring Steel
CB10-559030 .196 .559 .045 .030 Spring Steel
CB10-373020 .198 .373 .034 .020 Spring Steel
CB10-371015 .202 .371 .027 .015 Spring Steel
CB10-439018 .202 .439 .035 .018 Spring Steel
CB10-560027 .202 .560 .040 .027 Spring Steel
CB10-421029 .205 .421 .070 .029 Spring Steel
CB10-503008 .206 .503 .095 .008 Spring Steel
CB10-426034 .207 .426 .055 .034 Spring Steel
CB10-428034 .208 .428 .068 .031 Spring Steel
CB10-596017 .208 .596 .075 .017 Spring Steel
CB10-424040 .215 .424 .058 .040 Spring Steel
CB10-500026 .222 .500 .042 .026 Spring Steel
CB14-750025 .250-.255 .740-.760 .035-.040 .025 Spring Steel
CB14-750062 .250-.255 .740-.760 .090-.011 .062 Spring Steel
CB14-437020 .253 .437 .050 .020 Spring Steel
CB14-494020 .253 .495 .034 .020 Spring Steel
CB14-751040 .253 .751 .066 .040 Spring Steel
CB14-437016 .253-.260 .432-.442 .040-.050 .016 Spring Steel
Available Standard Sizes — Belleville Washers
For other material options such as 18-8 Stainless steel or 410 S/S please contact our sales dept., or submit your
request with our online quote form.
AUTOMOTIVE INDUSTRY FASTENERS
Conical or Belleville Washers
Part # Inside Diameter
Min-Max Outside Diameter
Min-Max Free Height
Min—Max Thickness
Min –Max Material
CB14-495018 .255-.265 .490-.500 .034 .018 Spring Steel
CB14-495022 .255-.265 .490-.500 .036 .022 Spring Steel
CB14-495025 .255-.265 .490-.500 .038 .025 Spring Steel
CB14-495038 .255-.265 .495-.500 .047 .038 Spring Steel
CB14-745036 .255-.265 .740-.750 .054 .036 Spring Steel
CB14-562015 .256-.267 .552-.572 .031-.040 .015 Spring Steel
CB14-496018 .257 .496 .038 .018 Spring Steel
CB14-498060 .257 .498 .085 .060 Spring Steel
CB14-498026 .258 .498 .058 .026 Spring Steel
CB14-750016 .258 .750 .054 .016 Spring Steel
CB14-483020 .260 .483 .034 .020 Spring Steel
CB14-498024 .260 .498 .040 .024 Spring Steel
CB14-499061 .260 .499 .075 .061 Spring Steel
CB14-740040 .260-.270 .730-.745 .080-.100 .040 Spring Steel
CB14-501015 .261 .501 .041 .015 Spring Steel
CB14-501022 .261 .501 .040 .022 Spring Steel
CB14-449015 .265 .449 .024 .015 Spring Steel
CB14-505005 .265 .565 .038 .025 Spring Steel
CB14-490020 .273 .490 .035 .020 Spring Steel
CB14-500016 .273 .500 .044 .016 Spring Steel
CB14-952076 .273 .952 .100 .076 Spring Steel
CB16-500050 .281-.286 .490-.510 .080-.090 .050 Spring Steel
CB16-750075 .282 .750 .099 .075 Spring Steel
CB16-493048 .314 .493 .078 .048 Spring Steel
CB16-600031 .316 .600 .043 .031 Spring Steel
Available Standard Sizes — Belleville Washers
For other material options such as 18-8 Stainless steel or 410 S/S please contact our sales dept., or submit your
request with our online quote form.
AUTOMOTIVE INDUSTRY FASTENERS
Conical or Belleville Washers
Part # Inside Diameter
Min-Max Outside Diameter
Min-Max Free Height
Min—Max Thickness
Min –Max Material
CB16-628058 .316 .628 .082 .058 Spring Steel
CB18-620022 .317-.327 .615-.625 .042 .022 Spring Steel
CB18-620032 .317-.327 .615-.625 .048 .032 Spring Steel
CB18-932045 .317-.327 .927-.937 .067 .045 Spring Steel
CB18-625032 .320 .625 .050 .032 Spring Steel
CB18-625030 .320 .625 .062 .031 Spring Steel
CB18-493050 .322 .493 .073 .050 Spring Steel
CB18-500010 .323 .500 .020 .010 Spring Steel
CB18-609013 .324 .609 .071 .013 Spring Steel
CB18-620030 .324 .620 .047 .030 Spring Steel
CB18-620050 .324 .620 .067 .050 Spring Steel
CB18-719028 .324 .719 .050 .028 Spring Steel
CB18-812075 .324 .812 .106 .075 Spring Steel
CB18-624056 .340 .624 .017 .056 Spring Steel
CB18-625009 .376 .625 .034 .009 Spring Steel
CB20-755050 .380 .755 .064 .050 Spring Steel
CB20-745028 .380-.390 .740-.750 .051 .028 Spring Steel
CB20-745034 .380-.390 .740-.750 .055 .034 Spring Steel
CB20-745040 .380-.390 .740-.750 .059 .040 Spring Steel
CB20-745056 .380-.390 .740-.750 .070 .056 Spring Steel
CB20-112053 .380-.390 1.115-1.125 .080 .053 Spring Steel
CB20-746040 .381 .746 .067 .040 Spring Steel
CB20-749033 .383 .749 .052 .033 Spring Steel
CB20-125065 .384-.398 1.240-1.260 .110-.120 .065 Spring Steel
CB20-746034 .385 .746 .062 .034 Spring Steel
Available Standard Sizes — Belleville Washers
For other material options such as 18-8 Stainless steel or 410 S/S please contact our sales dept., or submit your
request with our online quote form.
