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			<a href="/needle-bearings/">Needle Bearings</a>  &raquo; <a href="/needle-bearings/drawn-cup.php">Drawn Cup</a> 
			<h1>
				<span class="part">NPB B-57 Bearing</span>
				<span class="title">Drawn Cup | Needle Roller Bearings</span>
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			<dl class="overview">
				<dt>NPB Part No.</dt><dd><strong>B-57</strong></dd>	
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			<h2>Specifications</h2>

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<!-- display_title: Type -->
<dt>Type</dt><dd>Full complement</dd><!-- title: Assembly -->
<!-- display_title: Assembly -->
<!-- display_title: Assembly -->
<!-- display_title: Assembly -->
<!-- display_title: Assembly -->
<dt>Assembly</dt><dd>Open end</dd><!-- title: Inside Diameter "Fw" -->
<!-- display_title: Inside Diameter "Fw" -->
<!-- display_title: Inside Diameter "Fw" -->
<!-- display_title: Inside Diameter "Fw" -->
<!-- display_title: Inside Diameter &nbsp;<sup>Fw</sup> -->
<dt>Inside Diameter &nbsp;<sup>Fw</sup></dt><dd>0.313" / 7.938 mm</dd><!-- title: Outside Diameter "D" -->
<!-- display_title: Outside Diameter "D" -->
<!-- display_title: Outside Diameter "D" -->
<!-- display_title: Outside Diameter "D" -->
<!-- display_title: Outside Diameter &nbsp;<sup>D</sup> -->
<dt>Outside Diameter &nbsp;<sup>D</sup></dt><dd>0.500" / 12.700 mm</dd><!-- title: Thickness "C" -->
<!-- display_title: Thickness "C" -->
<!-- display_title: Thickness "C" -->
<!-- display_title: Thickness "C" -->
<!-- display_title: Thickness &nbsp;<sup>C</sup> -->
<dt>Thickness &nbsp;<sup>C</sup></dt><dd>0.438" / 11.112 mm</dd>			</dl>

						
			
				<h2>Interchange</h2>

				<p>National Precision Bearing Part No B-57 is an interchangable replacement for these common bearing part numbers:</p>

				<dl class="xchange">
				<dt>Koyo Bearing</dt><dd>B-57</dd><dt>Torrington  Bearing</dt><dd>B-57</dd>				</dl>

						 
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