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	<title>RHD Bearing &#187; Technology</title>
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	<link>http://www.rhdbearing.com</link>
	<description></description>
	<lastBuildDate>Mon, 19 Oct 2009 03:05:10 +0000</lastBuildDate>
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		<title>Lubrication</title>
		<link>http://www.rhdbearing.com/lubrication/</link>
		<comments>http://www.rhdbearing.com/lubrication/#comments</comments>
		<pubDate>Sun, 12 Apr 2009 08:03:44 +0000</pubDate>
		<dc:creator>RHDBearing</dc:creator>
				<category><![CDATA[Technology]]></category>
		<category><![CDATA[air lubrication]]></category>
		<category><![CDATA[bearings]]></category>
		<category><![CDATA[grease lubrication]]></category>
		<category><![CDATA[high speed]]></category>
		<category><![CDATA[lubrication]]></category>
		<category><![CDATA[oil lubrication]]></category>

		<guid isPermaLink="false">http://www.rhdbearing.com/?p=233</guid>
		<description><![CDATA[Lubrication
The correct choice of lubricant and method of lubrication is as important for the proper operation of the bearing as the selection of the bearing and the design of the associated components.
Grease lubrication
Grease should be used if&#8230;

Maintenance-free operation over long periods of time is desired,
the maximum speed of the bearing does not exceed the speed factor n x dm of the grease,
the heat generated is almost uniformly dissipated by the environment,
low friction losses are required with bearings working under small loads and at... <a href="http://www.rhdbearing.com/lubrication/" class="read_more">Read the rest</a>]]></description>
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		<item>
		<title>Bearing fits</title>
		<link>http://www.rhdbearing.com/bearing-fits/</link>
		<comments>http://www.rhdbearing.com/bearing-fits/#comments</comments>
		<pubDate>Sun, 12 Apr 2009 08:00:11 +0000</pubDate>
		<dc:creator>RHDBearing</dc:creator>
				<category><![CDATA[Technology]]></category>
		<category><![CDATA[application engineers]]></category>
		<category><![CDATA[bearings]]></category>
		<category><![CDATA[correct selection]]></category>
		<category><![CDATA[satisfactory operation]]></category>

		<guid isPermaLink="false">http://www.rhdbearing.com/?p=231</guid>
		<description><![CDATA[Bearing fits
The machining quality and the correct selection of the fits for the bearing seats are of great importance for a satisfactory operation of precision bearing applications.
For correct fit selection please contact our application engineers.

	Related Posts
	
	Multimedia-used bearing Feature
	Materials
	Machine Tool Bearing Specification
	Lubrication
	Introduction of Aerospace &#038; Defense Bearing


]]></description>
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		<item>
		<title>Accuracy of the associated components</title>
		<link>http://www.rhdbearing.com/accuracy-of-the-associated-components/</link>
		<comments>http://www.rhdbearing.com/accuracy-of-the-associated-components/#comments</comments>
		<pubDate>Sun, 12 Apr 2009 07:57:24 +0000</pubDate>
		<dc:creator>RHDBearing</dc:creator>
				<category><![CDATA[Technology]]></category>
		<category><![CDATA[accuracy]]></category>
		<category><![CDATA[surfaces]]></category>
		<category><![CDATA[tolerances]]></category>

		<guid isPermaLink="false">http://www.rhdbearing.com/?p=229</guid>
		<description><![CDATA[Accuracy of the associated components
The machining quality of the abutment surfaces and bearing seats are of great importance for running accuracy and low operating temperature of a bearing application. Reference values for form and position tolerances are available on request.

	Related Posts
	
	No Related Posts.
	

]]></description>
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		<item>
		<title>Preload and bearing arrangement</title>
		<link>http://www.rhdbearing.com/preload-and-bearing-arrangement/</link>
		<comments>http://www.rhdbearing.com/preload-and-bearing-arrangement/#comments</comments>
		<pubDate>Sun, 12 Apr 2009 07:33:25 +0000</pubDate>
		<dc:creator>RHDBearing</dc:creator>
				<category><![CDATA[Technology]]></category>
		<category><![CDATA[axial load]]></category>
		<category><![CDATA[high speeds]]></category>
		<category><![CDATA[lubrication]]></category>
		<category><![CDATA[oil lubrication]]></category>

		<guid isPermaLink="false">http://www.rhdbearing.com/?p=219</guid>
		<description><![CDATA[Preload and bearing arrangement
Basically, there are two types of preloading:
Spring preload Characteristics:

Insensitive to different thermal expansion of shaft and housing
Suitable for very high speeds

The drawing shows a spindle where bearing 1 has a fixed location, whereas the outer ring of bearing 2 is free to move axially. The spring force acts on the outer ring of bearing 2 and results in a permanent preload of both bearings almost independent of speed and temperature factors. Care must be taken to ensure easy movement of the adjusted... <a href="http://www.rhdbearing.com/preload-and-bearing-arrangement/" class="read_more">Read the rest</a>]]></description>
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		<title>Precision</title>
		<link>http://www.rhdbearing.com/precision/</link>
		<comments>http://www.rhdbearing.com/precision/#comments</comments>
		<pubDate>Sun, 12 Apr 2009 07:17:44 +0000</pubDate>
		<dc:creator>RHDBearing</dc:creator>
				<category><![CDATA[Technology]]></category>
		<category><![CDATA[abec 7]]></category>
		<category><![CDATA[high precision]]></category>
		<category><![CDATA[precision ball bearings]]></category>
		<category><![CDATA[precision bearings]]></category>

		<guid isPermaLink="false">http://www.rhdbearing.com/?p=212</guid>
		<description><![CDATA[Precision
The precision of a bearing does affect the guiding properties as well as lifetime, especially with applications at max. speed.
The tolerances for dimensional, form and running accuracy of RHD high precision ball bearings are specified in international (ISO 492) and national standards (DIN 620). RHD high precision bearings are manufactured to precision class 4 and class 2 (P4 and P2) as well as ABEC 7 and ABEC 9. For special applications, e.g. vacuum pumps, gyroscopes as well as measuring engineering and optical systems, RHD bearings to the internal... <a href="http://www.rhdbearing.com/precision/" class="read_more">Read the rest</a>]]></description>
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		<item>
		<title>Materials</title>
		<link>http://www.rhdbearing.com/materials/</link>
		<comments>http://www.rhdbearing.com/materials/#comments</comments>
		<pubDate>Sun, 12 Apr 2009 07:13:07 +0000</pubDate>
		<dc:creator>RHDBearing</dc:creator>
				<category><![CDATA[Technology]]></category>
		<category><![CDATA[bearings]]></category>
		<category><![CDATA[ceramic balls]]></category>
		<category><![CDATA[chrome steel]]></category>
		<category><![CDATA[high temperature]]></category>
		<category><![CDATA[steel balls]]></category>

		<guid isPermaLink="false">http://www.rhdbearing.com/?p=210</guid>
		<description><![CDATA[Materials
Rings:
Basically RHD rings are made from vacuum degassed chrome steel 100Cr6, which is heat stabilized for temperatures up to 150° C (302° F). On request, an additional heat stabilization can be carried out for working temperatures between 150° C and 300° C (572° F). Bearings for working temperatures up to 500° C (932° F) are made of high temperature tool steel.
Balls:
Standard material for balls is vacuum degassed chrome steel 100Cr6. For the increase of speed value and lifetime, all bearings can be delivered with ceramic balls.... <a href="http://www.rhdbearing.com/materials/" class="read_more">Read the rest</a>]]></description>
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		<item>
		<title>Contact angle</title>
		<link>http://www.rhdbearing.com/contact-angle/</link>
		<comments>http://www.rhdbearing.com/contact-angle/#comments</comments>
		<pubDate>Sun, 12 Apr 2009 07:04:08 +0000</pubDate>
		<dc:creator>RHDBearing</dc:creator>
				<category><![CDATA[Technology]]></category>
		<category><![CDATA[bearings]]></category>
		<category><![CDATA[contact angles]]></category>

		<guid isPermaLink="false">http://www.rhdbearing.com/?p=190</guid>
		<description><![CDATA[Contact angle α0
The contact angle is formed by a straight line drawn between the points of contact of the balls with the raceways and a plane perpendicular to the bearing axis. Externally applied loads are transmitted from one ring to the other along this line.

The contact angle is designed into the bearing and changes during operation with the speed, the external forces and the difference in temperature between the inner and the outer ring.

With increasing contact angle

Limiting speed decreases
Radial rigidity decreases
Axial rigidity increases

RHD... <a href="http://www.rhdbearing.com/contact-angle/" class="read_more">Read the rest</a>]]></description>
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