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NK45/20 Needle Roller Bearings 45×55×20mm

NK45/20 Needle Roller Bearings 45×55×20mm
Model: NK45/20
Place of Origin: Zhejiang,China (Mainland)
Brand Name: RNB OR NATURAL
Number of row: Single row
Type: Roller bearing
Material of race: Chrome steel
Material of Needle roller: Chrome steel
Precision: P6

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Product Description
Payment & Shipping Terms Supply Capacity
Trade Term:FOBProduction Capacity:300000 Piece/Pieces...
Payment Terms:L/C, T/T, WUPacking:RNB OR NATURAL
Min. Order:2000 Piece/PiecesDelivery Date:35days
Means of Transport:Ocean, Air

Solid Collar Needle Roller Bearings NK45/20

The solid collar needle roller bearing has compact structure, small radial size and large load carrying capacity. It is suitable for the parts of which the radial overall size is limited. It is also wide applied to the situation where the shaft or housing has the swinging motion. In general, the needle roller bearing only withstands the radial load, not the axial load. When the shaft has axial load, it can be used in combination with other bearings. However, it does not limit the axial shift of shaft or housing. The limiting rotational speed of needle roller bearing is lower. In high rotational speed of main machine, the needle roller bearing with cage shall be chosen as far as possible. In compassion with other types of needle roller bearings, under the situation of same radial size, the needle roller bearing has the large load carrying capacity and high rigidity but has high friction torque.

This kind of bearing has many series with different structure and size. It is requested that the hardness, processing accuracy and surface roughness of shaft journal surface and rolling surface of outer housing be same as those of the collar of bearing. As for the needle roller with G2 class, the diameter varies within 2µm in group. Except the full complement needle roller bearings, they have the rigid cages, which can correctly guide the parallel axis line of needle roller. The needle roller bearing without inner ring is suitable for the parts of which the radial size is limited. Because of no inner ring, the surface of shaft journal fitted with it is acted directly as rolling surface. It is    rquested that the surface hardness be no less than HRC60, surface roughness, no more than 0.63µm. This kind of bearing does not limit the axial shift of shaft and housing and has high limiting rotational speed.

The inner ring has no shoulder in this bearing. For this purpose, the inner ring, outer ring, complete set of needles and cage can be mounted respectively. This bearing does not limit the axial shift of shaft and outer housing. Since the cage separates the needles so as to reduce friction. It can be used for the parts with high rotational speed.

RNBBearing   DesignationMass ApproxBoudary   DimensionsBasic Load   RatingLimiting Speed
Shaft DiameterStructureFwDCDynamicStaticOil
mmNKNKSRNA49RNA69gmmNrpm
5NK5/10TN---2.9510102100140039000
NK5/12TN---3.2510122500160039000
6NK6/10TN---3.5612102600228037000
NK6/12TN---4.1612123350315037000
7NK7/10TN---4.5714102850265034000
NK 7/12---6.8714123650360034000
8NK 8/12---8.3815123050365032000
-NKS8--11.2816135000470032000
9NK 9/12-

9.2916124500500031000
10NK 10/12---101917124750535023500
----16.61017154860710023500
12NK 12/12---11.81219126050640021640
----15.41219156400710021640
NK 12/16---16.81219168200980021640
14NK 14/16---20.81422168260960018322
-NKS14--27142516104001080017652
--RNA4900-24.41422138060900018322
---RNA690029.114222282811161218322
15NK 15/12---18.515231286001007021004
----16.1152212820098008412
----18.2152512106001350017144
16NK 16/16---20.816241690301190015522
NK 16/20---23.9162420104001680015522
--RNA4901-16.61624136400890015522
---RNA690128.7162422140001860015522
-NKS16--30162816149001500020000
17NK 17/16---21.517251690001350014163
NK 17/20---23.517252098001020018000
18NK 18/20---30.5182620105001380013628
20NK 20/16---25.7202816115001340012716
NK 20/20---29.3202820124002180012716
NK202616---20.82026169600108009125
NK202620---17.220262010500119009125
-NKS20--46.8203220200002200018000
----24.3202825110001290012716
--RNA4902-20.5202813108001280012716
---RNA690235.4202823130002500012716
22NK 22/16---29.2223016135001800011527
----34.6223516186002080012711
-NKS22--60.2223520215002500017000
--RNA4903-20.7223013120001680016300
---RNA690339.8223023140001990016300
----53223525245002800014187
----42.5223030177002700016300
----27.4222816105001505015172
----49.7223516186002080016522
24NK 24/16---37.5243216186002900015711
25NK 25/16---30253316129002040015000
NK 25/20---38.4253320168002850015000
--RNA4904-50.8253717119121659414060
---RNA690497.7253730260004300014060
-NKS25--65253820258003100016300
----100.1253525149002240014060
----63253330188003050014060
26NK 26/16---30263416150002300016300
NK 26/20---40263420170003000016300
28NK 28/20---68283833330005700012000

NK 28/30---79283833330005700012000
-NKS28--80284220259003350014600
--RNA49/22-82283917223203200013000
---RNA69/22126283930212003050012500
30NK 30/20---57.9304020206003200012066
NK 30/30---95304030315005000014500
--RNA4905-57304217134522047512066
---RNA6905106.5304230263003175012066
----68304220154002450012066
32NK 32/20---75.4324220175003350012066
--RNA49/28-80324517174003005012000
-NKS32--100324722310004000012100
---RNA69/28125324530395006130013100
----42324811107503050012000
----193325035405006300012000
35NK 35/20---70354520138512690012000
NK 35/30---95354530175002520012000
--RNA 4906-62.8354717170003050012000
---RNA6906116354730350006700012000
----161355132435007100011680
37
NKS37--15437522228500455009027
NK 37/20---15037472027600442008500
NK 37/30---16837473025000420008400
38NK 38/20---16238482025000405008200
NK 38/30---18638483025000400008100
40NK 40/20---78.940502019600430008800
NK 40/30---12040503022200513508800
-NKS40--13840552221000505008300
--RNA49/32-11240522026000480008000
---RNA69/3214740523625500685008200
42NK 42/20---83425220239004500010000
NK 42/30---125425230270004900010000
--RNA4907-99.342552019800415008710
---RNA690716042553626000605008710
----14842652231500510008710
43NK 43/20---84435320257004900010000
NK 43/30---126435330390007500010000
45NK 45/20---81.545552019800465007650
NK 45/30---75.345553020500496007650
-NKS45--8045602221600505007650
48--RNA4908-13248622231036638738120
---RNA 6908238486240640001120008120
50NK 50/25---16750622528000670008140
NK 50/35---23650623532000701008140
-NKS50--32850652240000620008140
52--RNA4909-16352682237000695007625
---RNA6909308526840615001235007625
55NK 55/25---16755682530600608007625
NK 55/35---21055683536000680007625
-NKS55--2255572224500070007500
58--RNA4910-16158722241000720007500
---RNA6910296587240680001350007500
60NK 60/25---15460722539000860007000
NK 60/35---19560723538000850007000
-NKS60--21060802845000960007000
63--RNA4911-24163802550600965806340
---RNA6911430638045825601720006340
65NK 65/25---19565782549000650006200
NK 65/35---21065783559000720006010

NKS65--29865852868000980006200
68--RNA4912-25768852552800910506100
---RNA6912436688545885001860006100
70NK 70/25---32070852562000780006000
NK 70/35---39870853565000920006000
-NKS70--421709028850001130006000
72--RNA4913-300729025575001105006100
---RNA6913571729045876001945006100
75NK 75/25---348759025560001100006000
NK 75/35---52075903559000120006000
80NK 80/25---52680952555000135006000
NK 80/35---72080953554000140006000
--RNA4914-4008010030790001540005130
---RNA691481580100541210002630005130
85--RNA4915-4728510530820001580005130
---RNA691592385105541280002720005130

NK 90/25---5809011025720001800005200
90NK 90/35---610901103583000210005100
--RNA4916-4969011030810001705004927
---RNA691697890110541305002806004927
100NK100/26---58510012026760001450004600
NK100/36---68010012036980002230004600
--RNA4917-60810012035980002070004600
---RNA69171112100120631610003370004600
105--RNA4918-71310512535985002390004000
---RNA69181250105125631740003800004000
110NK110/30---65011013030980002100004000
NK110/40---710110130401270002900004000
--RNA4919-685110130351120002450003870
---RNA69191325110130631960004000003870
115--RNA4920-1006115140401200002640003710
---RNA69201400115140712120004400003920
125--RNA4922-1200125150401240002700003350
130--RNA4924-68513015030916002340003000
135--RNA4924-1760135165451740003860002920
155--RNA4928-988155175351190003210002570
160--RNA4928-2350160190502000004600002900

Solid Collar Needle Roller Bearings NK45/20

Category: The Solid Collar Needle Roller Bearings

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