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China, Chinese High Quality Needle Roller Bearing Na4918 Size 90*105*125 mm1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
BearingNeedle BearingNa491890*105*125
WUXI AMC POWER MACHINERY CO., LTD.
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Product Description 1. Needle Roller Bearing NA4918 size 90*105*125 mm .Needle roller bearings with cylindrical roller bearings,relative to its diameter, roller is fine and long. This is called needle roller. Although it has a small section, the load bearing capacity of bearing still had high, with thin and long needle bearing roller, so the radial structure is compact, compered with the other bearings,the size of the inner diameter and load capacity is the same.and its has the minimum size of outside diameter, especially for supporting structure of radial installation size restricted.2. Product Description . Needle roller bearing with inner ringThe needle roller bearing with inner ring is necessary when shaft could not be used as bearing race. The inner ring or outer ring with needle roller or cage assembly units could be assembled individually.Needle roller bearing of sealed ring with or without inner ringSingle sided or double-faced sealing HXB series needle roller could avoid soil. The sealing ring is of butadiene acrylonitrile rubber. Its working temperature scope is between minus 30 and 180. Lubricant is No.2 or No.3 high-performance lithium based grease. The longer re-lubricating interval period exists for enough storing lubricant grease space. The inner ring is 1mm thicker than the exterior ring, so sealing ring could work even when shaft moves down. There is lubricant aperture in inner ring in common.Standard bearingThe bearings of standard grade are all proved up to dimensional precision and geometric accuracy of standard size. On exterior ring, there are lubricate hole and lubrication groove.Dimensional toleranceTo bearing of high-precision requirements, it is required to inform the precision grade. To needle roller bearing with or without inner ring, whose radial clearance is flexible, it is also suitable.Specific requirementsPlease note supplementary code of bearing code when orders exterior ring of arc shape; so does order exterior ring with lubricate hole.The bearing ring of grinding function is necessary with the purpose to get high-precision bearing device. Then the interior ring grinded after being assembled so as to improve rotating precision.3. We also can offer following bearings , please check . Bearing No.Boundary dimensions(mm)Basic load ratings(N)Limiting speeds(rpm)Mass(g)dFwDBCrCorOil NA490010142213800690002370021.00NA490112162413504763522000025.10NA490215202813644790531880032.00NA4903172230137010100101700032.80NA49042025371711912165941620070.20NA49/222228391712996191751436076.00NA49052530421713452204751383276.00NA49/282832451713900201001383290.70NA49/3232405220190003260011134150.00NA490735425520198004150011134151.00NA49084048622231036638738567123.00NA49094550682237000965008052260.00NA49105058722241000720007526264.00NA49115563802550600965807156386.00NA491260688525528001105006022412.00NA491365729025575001105006022435.00NA4914708010030790001540005111712.00NA4915758510530820001580005111765.00NA4916809011030810001705005111870.00NA4917851001203511100023700046001250.00NA4918901051253511400025000044001312.00NA4919951101303511600026000042001371.00NA492010011514040120000274000040001900.00NA49221101251504013200029000037002070.00
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