RNA, NK Type

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RNA, NK type needle roller bearings, this type of bearing has no inner ring, it is suitable for the support structure with limited radial installation size, and the journal matched with the bearing is directly used as the rolling surface. As the shaft of the raceway surface, the hardware must be hardened and ground, and only when it is processed to the appropriate size and shape accuracy, the entire set of needle roller bearings can have a high life and running accuracy. At the same time, since there is no inner ring, the diameter of the shaft can also be appropriately enlarged, thereby increasing the rigidity.

Bearing Number	Dimensions （mm）
RNA4822A	120×140×30
RNA49/8A	10×19×11
RNA49/9A	12×20×11
RNA4900A	14×22×13
RNA4901A	16×24×13
RNA4902A	20×28×13
RNA4902AF	20×28×13
RNA4903A	22×30×13
RNA4904A	25×37×17
RNA4905A	30×42×17
RNA4906A	35×47×17
RNA4907A	42×55×20
RNA4907A/AS4	42×55×20
RNA4907AF1	42×55×20
RNA4908A	48×62×22
RNA4909A	52×68×22
RNA4909AF1	52×68×22
RNA4910A	58×72×22
RNA4910A/YB2	58×72×22
RNA4911A	63×80×25
RNA4912A	68×85×25
RNA4913A	72×90×25
RNA4914A	80×100×30
RNA4915A	85×105×30
RNA4916A	90×110×30
RNA4917A	100×120×35
RNA4918A	105×125×35
RNA4919A	110×130×35
RNA4920A	115×140×40
RNA4922A	125×150×40
RNA4924A	135×165×45
RNA59/7A	10×17×15
RNA59/8A	12×19×15
RNA5900A	14×22×16
RNA6901A	16×24×22
RNA6901	16×24×22
RNA6902	20×28×23
RNA6903	22×30×23
RNA6904	25×37×30
RNA69/22	28×39×30
RNA6905	30×42×30
RNA69/28	32×45×30
RNA6906	35×47×30
RNA6901AF1	16×24×22
RNA6902A	20×28×23
RNA6903A	22×30×23
RNA6904A	25×37×30
RNA6905A	30×42×30
RNA6905ATN1	30×42×30
RNA6905AF1A	30×42×30
RNA6906A	35×47×30
RNA49/7X2A	10×17×12
RNA4905X2A	30×42×20
RNA49/38X3A	45×55×22
RNA4908X2A	45×62×24
RNA4908X3A
RNA4952X3A	55×68×25
RNA59/7X2A	10×17×15
RNA59/8X2A	12×19×15
RNA5902X3A	19×27×16
RNA5904X3A	25×35×25
RNA5908X3A	50×65×34
RNA59/38X3A	50×65×35
RNA6903X2A/AS1	45×55×32
RNA5001X3A	16×27×25
RNA5001X2A	20×28×20
RNA5002X2A	18×32×25
RNA5003X2A	22×35×25
RNA5006X3A	45×55×32
RNA5007X1A	50×64×36
RNA6001X2A	20×28×25
RNA6001X2L1A	20×28×25
RNA6002X1A	18×33×30
RNA6002X1ATN1	18×33×30
RNA6/37A	37×52×22
NK16/16A	16×24×16
NK16/20A	16×24×20
NK16/20AF1	16×24×20
NK14/16A	14×22×16
NK20/20A	20×28×20
NK20/25A	20×28×25
NK22/20A	22×30×20
NK25/16A	25×33×16
NK25/20A/ASI	25×33×20
NK32/20A	32×42×20
NK55/25A	55×68×25
RNA2913/YA4	75×90×16

APPLICATION AREAS

Metallurgy

High Speed Rail

Aviation

Car

Mine

Petrochemical

Needle Roller Bearings