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Needle roller bearings are essentially cylindrical roller bearings except that their cylindrical rollers have a length 3 to 10 times their diameter (versus a length less than 3 times their diameter). Needle bearings are also essentially bearings that utilize small & cylindric rollers. Therefore, the ratio of the bearing outside diameter to the inscribed circle diameter is small, and they have a rather high radial load capacity. Even though they have a low cross section, needle roller bearings have a high radial load capacity and are exceptionally apt for bearing applications where radial space is limited.

 

There are numerous types available, and many have no inner rings. The drawn-cup type has a pressed steel outer ring and the precision (solid) type has a machined outer ring. There are also cage-and-roller assemblies without rings. Most bearings have pressed steel cages, but some are without cages. Except the following types are available, the HF and CF series are also obtainable in JnSn (Just ask!).

 

SCE and SCE-PP Series - Drawn cup needle roller bearing, Open ends for through shafts, cage guided, with/without seals, Inch dimensional

HK, and HK-RS Series - Drawn cup needle roller bearing, Open ends for through shafts, cage guided, with/without seals, Metric dimensional

HF Series--It is made of pressed outer ring and plastic holder; the holder can be installed with plastic reed or the stainless steel reed to guide the needle rollers, bevel race way and needle rollers can be treated as locking device.

 

BCE and BCE-P Series - Drawn cup needle roller bearing, One end closed for shaft ends, cage guided, with/without seals, Inch dimensional

BK, and BK-RS Series - Drawn cup needle roller bearing, One end closed for shaft ends, cage guided, with/without seals, Metric dimensional

NCS Series - Needle roller bearings that have inch dimensions precision ground raceways with ribs, without Inner Rings, cage guided rollers, with/without Seals.

 

NK Series - Needle roller bearings that have metric dimensions, precision ground raceways with ribs, without Inner Rings, cage guided rollers, with/without Seals.

RNA 48 Series - Needle roller bearings that have metric dimensions, without Inner Rings, with/without Seals, precision ground raceways with ribs, cage guided rollers, and ISO 48 Dimensional Series.

RNA 49 Series - Needle roller bearings that have metric dimensions, without Inner Rings, with/without Seals, precision ground raceways with ribs, cage guided rollers, and ISO 49 Dimensional Series.

 

RNA 69 Series - Needle roller bearings that have metric dimensions, without Inner Rings, with/without Seals, precision ground raceways with ribs, cage guided rollers, and ISO 69 Dimensional Series.

NA 48 Series - Needle roller bearings that have metric dimensions, with Inner Rings, with/without Seals, precision ground raceways with ribs, cage guided rollers, and ISO 48 Dimensional Series.

 

NA 49 Series - Needle roller bearings that have metric dimensions, with Inner Rings, with/without Seals, precision ground raceways with ribs, cage guided rollers, and ISO 49 Dimensional Series.

NA 69 Series - Needle roller bearings that have metric dimensions, with Inner Rings, with/without Seals, precision ground raceways with ribs, cage guided rollers, and ISO 69 Dimensional Series.

 

NAO Series - Radial Needle Roller Bearings that have metric dimensions without ribs, with Inner Rings, and with/without Seals.

NKI Series - Needle roller bearings that have metric dimensions, with Inner Rings, cage guided rollers, precision ground raceways with ribs, with/without Seals.

NKIS Series - Needle roller bearings that have metric dimensions, larger outside diameter and heavier load capacity (vs. NKI Series), with Inner Rings, cage guided rollers, precision ground raceways with ribs, with/without Seals.

RNAO Series - Radial Needle Roller Bearings that have metric dimensions without ribs, without Inner Rings, and with/without Seals.

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Контактный человек: Джерри Ши
Тел:86 15967166989
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