<?xml version="1.0" encoding="utf-8"?>
<!--Generated by DFIN XBRL Instance Document - http://www.dfinsolutions.com/ - Version R3.0 - on 04-March-2026 [12:53:27] {AM}-->
<schema targetNamespace="http://www.cr.com/20251231" elementFormDefault="qualified" xmlns:cr="http://www.cr.com/20251231" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:us-gaap="http://fasb.org/us-gaap/2025" xmlns:country="http://xbrl.sec.gov/country/2025" xmlns:dei="http://xbrl.sec.gov/dei/2025" xmlns:us-types="http://fasb.org/us-types/2025" xmlns:deprecated="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" xmlns:srt="http://fasb.org/srt/2025" xmlns:srt-types="http://fasb.org/srt-types/2025" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2024-01-31">
  <annotation>
    <appinfo>
      <link:linkbase id="lnk" >
        <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#PvpDisclosure" roleURI="http://xbrl.sec.gov/ecd/role/PvpDisclosure"  />
        <link:roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#PvpAdjustmentsOnly" roleURI="http://xbrl.sec.gov/ecd/role/PvpAdjustmentsOnly"  />
        <link:roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" roleURI="http://www.xbrl.org/2009/role/negatedLabel"  />
        <link:roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel"  />
        <link:roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel"  />
        <link:roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel"  />
        <link:roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" roleURI="http://www.xbrl.org/2009/role/negatedNetLabel"  />
        <link:roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel"  />
        <link:roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" roleURI="http://www.xbrl.org/2009/role/netLabel"  />
        <link:presentationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/ecd/role/PvpDisclosure" >
          <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllAdjToCompMember" xlink:label="loc_ecd_AllAdjToCompMember_130860706" />
          <link:loc xlink:type="locator" xlink:href="cr-20251231.xsd#cr_DeductionsFromSctTotalMember" xlink:label="loc_CR_DeductionsFromSctTotalMember_130860712" />
          <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_AllAdjToCompMember_130860706" xlink:to="loc_CR_DeductionsFromSctTotalMember_130860712" order="100" preferredLabel="http://www.xbrl.org/2003/role/label" />
          <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_PayVsPerformanceDisclosureLineItems" xlink:label="loc_ecd_PayVsPerformanceDisclosureLineItems_130860703" />
          <link:loc xlink:type="locator" xlink:href="cr-20251231.xsd#cr_Salary" xlink:label="loc_CR_Salary_130860694" />
          <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems_130860703" xlink:to="loc_CR_Salary_130860694" order="100" preferredLabel="http://www.xbrl.org/2003/role/label" />
          <link:loc xlink:type="locator" xlink:href="cr-20251231.xsd#cr_Bonus" xlink:label="loc_CR_Bonus_130860695" />
          <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems_130860703" xlink:to="loc_CR_Bonus_130860695" order="101" preferredLabel="http://www.xbrl.org/2003/role/label" />
          <link:loc xlink:type="locator" xlink:href="cr-20251231.xsd#cr_AllOtherCompensation" xlink:label="loc_CR_AllOtherCompensation_130860699" />
          <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems_130860703" xlink:to="loc_CR_AllOtherCompensation_130860699" order="102" preferredLabel="http://www.xbrl.org/2003/role/label" />
          <link:loc xlink:type="locator" xlink:href="cr-20251231.xsd#cr_StockAwards" xlink:label="loc_CR_StockAwards_130860697" />
          <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems_130860703" xlink:to="loc_CR_StockAwards_130860697" order="103" preferredLabel="http://www.xbrl.org/2003/role/label" />
          <link:loc xlink:type="locator" xlink:href="cr-20251231.xsd#cr_OptionAwards" xlink:label="loc_CR_OptionAwards_130860698" />
          <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems_130860703" xlink:to="loc_CR_OptionAwards_130860698" order="104" preferredLabel="http://www.xbrl.org/2003/role/label" />
          <link:loc xlink:type="locator" xlink:href="cr-20251231.xsd#cr_NonqualifiedDeferredCompensationEarnings" xlink:label="loc_CR_NonqualifiedDeferredCompensationEarnings_130860709" />
          <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ecd_PayVsPerformanceDisclosureLineItems_130860703" xlink:to="loc_CR_NonqualifiedDeferredCompensationEarnings_130860709" order="105" preferredLabel="http://www.xbrl.org/2003/role/label" />
        </link:presentationLink>
        <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"  />
        <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"  />
        <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"  />
        <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"  />
        <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"  />
        <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/notAll" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#notAll"  />
        <link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/ecd/role/PvpAdjustmentsOnly" >
          <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllAdjToCompMember" xlink:label="loc_ecd_AllAdjToCompMember_130860706" />
          <link:loc xlink:type="locator" xlink:href="cr-20251231.xsd#cr_DeductionsFromSctTotalMember" xlink:label="loc_CR_DeductionsFromSctTotalMember_130860712" />
          <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ecd_AllAdjToCompMember_130860706" xlink:to="loc_CR_DeductionsFromSctTotalMember_130860712" order="100" />
        </link:definitionLink>
        <link:labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link" >
          <link:loc xlink:type="locator" xlink:href="cr-20251231.xsd#cr_AllOtherCompensation" xlink:label="loc_cr_AllOtherCompensation" />
          <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_cr_AllOtherCompensation" xml:lang="en-US">All Other Compensation</link:label>
          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cr_AllOtherCompensation" xlink:to="lab_cr_AllOtherCompensation" />
          <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_cr_AllOtherCompensation" xml:lang="en-US">All other compensation for the period that could not be properly reported in any other column of the Summary Compensation Table.</link:label>
          <link:loc xlink:type="locator" xlink:href="cr-20251231.xsd#cr_Bonus" xlink:label="loc_cr_Bonus" />
          <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_cr_Bonus" xml:lang="en-US">Bonus</link:label>
          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cr_Bonus" xlink:to="lab_cr_Bonus" />
          <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_cr_Bonus" xml:lang="en-US">The dollar value of bonus (cash and non-cash) earned by the named executive officer during the period as reported in the Summary Compensation Table.</link:label>
          <link:loc xlink:type="locator" xlink:href="cr-20251231.xsd#cr_NonqualifiedDeferredCompensationEarnings" xlink:label="loc_cr_NonqualifiedDeferredCompensationEarnings" />
          <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_cr_NonqualifiedDeferredCompensationEarnings" xml:lang="en-US">Nonqualified Deferred Compensation Earnings</link:label>
          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cr_NonqualifiedDeferredCompensationEarnings" xlink:to="lab_cr_NonqualifiedDeferredCompensationEarnings" />
          <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_cr_NonqualifiedDeferredCompensationEarnings" xml:lang="en-US">Above-market or preferential earnings on compensation that is deferred on a basis that is not tax-qualified, including any such earnings on nonqualified defined contribution plans, as reported in the Summary Compensation Table.</link:label>
          <link:loc xlink:type="locator" xlink:href="cr-20251231.xsd#cr_OptionAwards" xlink:label="loc_cr_OptionAwards" />
          <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_cr_OptionAwards" xml:lang="en-US">Option Awards</link:label>
          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cr_OptionAwards" xlink:to="lab_cr_OptionAwards" />
          <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_cr_OptionAwards" xml:lang="en-US">The aggregate grant date fair value computed in accordance with FASB ASC Topic 718 for any awards of options, with or without tandem Stock Appreciation Rights (SARs), as reported in the Summary Compensation Table.</link:label>
          <link:loc xlink:type="locator" xlink:href="cr-20251231.xsd#cr_Salary" xlink:label="loc_cr_Salary" />
          <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_cr_Salary" xml:lang="en-US">Salary</link:label>
          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cr_Salary" xlink:to="lab_cr_Salary" />
          <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_cr_Salary" xml:lang="en-US">The dollar value of base salary (cash and non-cash) earned by the named executive officer during the period as reported in the Summary Compensation Table.</link:label>
          <link:loc xlink:type="locator" xlink:href="cr-20251231.xsd#cr_StockAwards" xlink:label="loc_cr_StockAwards" />
          <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_cr_StockAwards" xml:lang="en-US">Stock Awards</link:label>
          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cr_StockAwards" xlink:to="lab_cr_StockAwards" />
          <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_cr_StockAwards" xml:lang="en-US">The aggregate grant date fair value computed in accordance with FASB ASC Topic 718 of all stock awards granted during the period as reported in the Summary Compensation Table.</link:label>
          <link:loc xlink:type="locator" xlink:href="cr-20251231.xsd#cr_DeductionsFromSctTotalMember" xlink:label="loc_cr_DeductionsFromSctTotalMember" />
          <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_cr_DeductionsFromSctTotalMember" xml:lang="en-US">Deductions from SCT Total [Member]</link:label>
          <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cr_DeductionsFromSctTotalMember" xlink:to="lab_cr_DeductionsFromSctTotalMember" />
          <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_cr_DeductionsFromSctTotalMember" xml:lang="en-US">Deductions from SCT total.</link:label>
        </link:labelLink>
      </link:linkbase>
    </appinfo>
  </annotation>
  <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd" />
  <import namespace="http://xbrl.sec.gov/dei-sub/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-sub-2025.xsd" />
  <import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd" />
  <import namespace="http://fasb.org/srt/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd" />
  <import namespace="http://fasb.org/srt-types/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-types-2025.xsd" />
  <import namespace="http://xbrl.sec.gov/ecd-sub/2025" schemaLocation="https://xbrl.sec.gov/ecd/2025/ecd-sub-2025.xsd" />
  <import namespace="http://xbrl.sec.gov/ecd/2025" schemaLocation="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd" />
  <import namespace="http://www.xbrl.org/2006/ref" schemaLocation="http://www.xbrl.org/2006/ref-2006-02-27.xsd" />
  <import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <import namespace="http://fasb.org/srt-roles/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-roles-2025.xsd" />
  <element name="PayVsPerformanceDisclosureAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cr_PayVsPerformanceDisclosureAbstract" substitutionGroup="xbrli:item" />
  <element name="DeductionsFromSctTotalMember" type="dtr-types:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cr_DeductionsFromSctTotalMember" substitutionGroup="xbrli:item" />
  <element name="AllOtherCompensation" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cr_AllOtherCompensation" substitutionGroup="xbrli:item" xbrli:balance="debit" />
  <element name="Bonus" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cr_Bonus" substitutionGroup="xbrli:item" xbrli:balance="debit" />
  <element name="NonqualifiedDeferredCompensationEarnings" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cr_NonqualifiedDeferredCompensationEarnings" substitutionGroup="xbrli:item" xbrli:balance="debit" />
  <element name="OptionAwards" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cr_OptionAwards" substitutionGroup="xbrli:item" xbrli:balance="debit" />
  <element name="Salary" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cr_Salary" substitutionGroup="xbrli:item" xbrli:balance="debit" />
  <element name="StockAwards" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cr_StockAwards" substitutionGroup="xbrli:item" xbrli:balance="debit" />
  <element name="InsiderTradingPoliciesAndProceduresAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cr_InsiderTradingPoliciesAndProceduresAbstract" substitutionGroup="xbrli:item" />
  <element name="AwardTimingDisclosureAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cr_AwardTimingDisclosureAbstract" substitutionGroup="xbrli:item" />
</schema>
