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<!-- Generated by DataTracks version 1.1.9 on 03-Aug-2016 [11:10:54] {PM} EST - www.datatracks.com -->
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        <link:usedOn>link:definitionLink</link:usedOn>

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        <link:usedOn>link:definitionLink</link:usedOn>

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        <link:definition>119 - Disclosure - Net Income Per Common Share (Tables)</link:definition>

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        <link:usedOn>link:definitionLink</link:usedOn>

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        <link:usedOn>link:definitionLink</link:usedOn>

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        <link:usedOn>link:definitionLink</link:usedOn>

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        <link:definition>123 - Disclosure - Reportable Segments (Tables)</link:definition>

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        <link:usedOn>link:definitionLink</link:usedOn>

        <link:usedOn>link:calculationLink</link:usedOn>
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        <link:definition>124 - Disclosure - Acquisitions (Tables)</link:definition>

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        <link:definition>125 - Disclosure - Organization and Business (Details Textual)</link:definition>

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        <link:usedOn>link:definitionLink</link:usedOn>

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        <link:usedOn>link:definitionLink</link:usedOn>

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        <link:definition>128 - Disclosure - Net Income Per Common Share (Details Textual)</link:definition>

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        <link:definition>129 - Disclosure - Inventory (Details)</link:definition>

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        <link:definition>130 - Disclosure - Goodwill and Intangible Assets (Details)</link:definition>

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        <link:usedOn>link:definitionLink</link:usedOn>

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        <link:definition>131 - Disclosure - Goodwill and Intangible Assets (Details 1)</link:definition>

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        <link:usedOn>link:definitionLink</link:usedOn>

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        <link:definition>132 - Disclosure - Goodwill and Intangible Assets (Details 2)</link:definition>

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        <link:definition>133 - Disclosure - Goodwill and Intangible Assets (Details Textual)</link:definition>

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        <link:definition>134 - Disclosure - Debt (Details)</link:definition>

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        <link:definition>137 - Disclosure - Reportable Segments (Details)</link:definition>

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        <link:definition>138 - Disclosure - Acquisitions (Details)</link:definition>

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        <link:definition>139 - Disclosure - Acquisitions (Details 1)</link:definition>

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        <link:definition>140 - Disclosure - Acquisitions (Details 2)</link:definition>

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        <link:definition>141 - Disclosure - Acquisitions (Details Textual)</link:definition>

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  <element name="RevolvingCreditFacilityDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_RevolvingCreditFacilityDomain" />

  <element name="SchaublinMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_SchaublinMember" />

  <element name="ConsolidatedNetDebtAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" type="xbrli:decimalItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_ConsolidatedNetDebtAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" />

  <element name="ConsolidatedInterestCoverageRatio" type="xbrli:decimalItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_ConsolidatedInterestCoverageRatio" />

  <element name="BusinessAcquisitionPurchasePriceAllocationCapitalLeaseObligationAccrual1" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" xbrli:balance="credit" substitutionGroup="xbrli:item" id="roll_BusinessAcquisitionPurchasePriceAllocationCapitalLeaseObligationAccrual1" />

  <element name="MortgageLoanOnRealEstateFinalMaturityPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_MortgageLoanOnRealEstateFinalMaturityPeriod" />

  <element name="WithoutDiscreteItemMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_WithoutDiscreteItemMember" />

  <element name="PlainMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_PlainMember" />

  <element name="RollerMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_RollerMember" />

  <element name="BallMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_BallMember" />

  <element name="EngineeredProductsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_EngineeredProductsMember" />

  <element name="OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem" id="roll_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTable" />

  <element name="RevenuesFromIntersegmentSales" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="credit" substitutionGroup="xbrli:item" id="roll_RevenuesFromIntersegmentSales" />

  <element name="SargentAerospaceDefenseBusinessMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_SargentAerospaceDefenseBusinessMember" />

  <element name="NewCreditAgreementMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_NewCreditAgreementMember" />

  <element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinitelivedIntangiblesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinitelivedIntangiblesAbstract" />

  <element name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNonamortizableIntangibleAssetsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNonamortizableIntangibleAssetsAbstract" />

  <element name="SargentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_SargentMember" />

  <element name="OtherLoanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_OtherLoanMember" />

  <element name="NetIncomeLossPerCommonShareLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_NetIncomeLossPerCommonShareLineItems" />

  <element name="DebtIssuanceOriginalAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" xbrli:balance="debit" substitutionGroup="xbrli:item" id="roll_DebtIssuanceOriginalAmount" />

  <element name="TermLoanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_TermLoanMember" />

  <element name="OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureLineItems" />

  <element name="ShipinplaceTransactionsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_ShipinplaceTransactionsMember" />

  <element name="SummaryOfSignificantAccountingPoliciesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_SummaryOfSignificantAccountingPoliciesLineItems" />

  <element name="WeightedAverageDenominatorAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_WeightedAverageDenominatorAbstract" />

  <element name="CriticalAccountingPoliciesPolicyTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_CriticalAccountingPoliciesPolicyTextBlock" />

  <element name="PercentageOfTotalNetSales" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="roll_PercentageOfTotalNetSales" />
</schema>

