SKF  RODAMIENTOS DE AGUJAS NKXR 20 Z  , NUTR 25 A  , NUTR 3580 A/W64 , PWKR 90.2RS  ,     STO 25 X  , RNA 6905 , RNA 69/22
 
OBT Bearing           2017-8-2

RODAMIENTOS DE AGUJAS

Os rolamentos de rolos de agulhas SKF têm rolos cilíndricos de diâmetro pequeno em relação a seu comprimento. As extremidades dos rolos são levemente abauladas para modificar a linha de contato entre as pistas e os rolos. Isso evita picos de tensão nas extremidades do rolo, levando ao prolongamento da vida útil do rolamento. A despeito de sua seção transversal baixa, os rolamentos de rolos de agulhas possuem uma alta capacidade de carga. Portanto, são extremamente indicados para arranjos de rolamentos onde o espaço radial é limitado.
A SKF fornece rolamentos de rolos de agulhas em diferentes perfis e em uma ampla variedade de materiais, séries e tamanhos, o que os torna apropriados para diversas aplicações e condições operacionais.

SKF needle roller bearings are bearings with cylindrical rollers that are small in diameter relative to their length. The ends of the rollers are relieved slightly to modify the line contact between the rollers and raceways. This prevents stress peaks at the roller ends to extend bearing service life. In spite of their low cross section, needle roller bearings have a high load carrying capacity. Therefore, they are extremely suitable for bearing arrangements where radial space is limited.

K Needle roller and cage assembly
DS Single split needle roller and cage assembly
ZW Double row needle roller and cage assembly (double row cage)
TN Glass fibre reinforced PA66 cage
VG052 Single split PES (polyethersulfone) cage
BK Drawn cup needle roller bearing with a closed end
HK              Drawn cup needle roller bearing with open ends
HN              Drawn cup needle roller bearing with open ends, full complement
RS Contact seal (NBR or FKM or PUR) on one side
.2RS Contact seal (NBR or FKM or PUR) on both sides
AS.. Outer ring with lubrication hole(s), the number following indicates the number of holes
SM..          Special grease, two numbers following identify the grease
ASR..      Outer ring with annular groove and lubrication hole(s), the number following indicates the number of holes
IS.. Inner ring with lubrication hole(s), the number following indicates the number of holes
ISR.. Inner ring with annular groove and lubrication hole(s), the number following indicates the number of holes

R              Bearing without an inner ring
NA  48 Needle roller bearing with machined rings, with flanges, with an inner ring
NA  49 Needle roller bearing with machined rings, with flanges, with an inner ring
NA  69 Needle roller bearing with machined rings, with flanges, with an inner ring
NAO  Needle roller bearing with machined rings, without flanges, with an inner ring
NK  Needle roller bearing with machined rings, with flanges, without an inner ring
NKI  Needle roller bearing with machined rings, with flanges, with an inner ring
NKIS  Needle roller bearing with machined rings, with flanges, with an inner ring
NKS  Needle roller bearing with machined rings, with flanges, without an inner ring
C2  Radial internal clearance smaller than Normal
C3  Radial internal clearance greater than Normal
C4  Radial internal clearance greater than C3
H..             Bearing without an inner ring and reduced inside diameter (under rollers) tolerance, the numbers following indicate the tolerance limits in µm, e.g. H+27+20
P5  Dimensional and geometrical tolerances to class P5
P6 Dimensional and geometrical tolerances to class P6
P62 P6 + C2
P63 P6 + C3
P6CNR P6 + CNR
S0     Bearing heat stabilized for operating temperatures ≤ 150 °C (300 °F)
S1    Bearing heat stabilized for operating temperatures ≤ 200 °C (390 °F)
S2    Bearing heat stabilized for operating temperatures ≤ 250 °C (480 °F)
S3    Bearing heat stabilized for operating temperatures ≤ 300 °C (570 °F)
NA 22   Support roller without a flange ring, fitted with a needle roller and cage assembly.
STO   Support roller without a flange ring, fitted with a needle roller and cage assembly.
NATR   Support roller with two pressed-on flange rings, fitted with a needle roller and cage assembly.
NATV   Support roller with two pressed-on flange rings, fitted with a full complement of needle rollers.
NUTR   Support roller based on a double row, full complement cylindrical roller bearing with two integral outer ring flanges and a loose flange ring on both sides of the inner ring.
NNTR    Support roller based on a double row, full complement cylindrical roller bearing with three integral outer ring flanges and a loose flange ring on both sides of the inner ring.
PWTR    Support roller based on a double row, full complement cylindrical roller bearing with three integral outer ring flanges and a loose flange ring on both sides of the inner ring.

2RS NBR contact seal on both sides.
.2ZL      Lamellar seal on both sides.
A         Improved crowned profile of the outer ring running surface (NUTR design).
PPA
PA66 axial sliding and sealing ring on both sides. Improved crowned profile of the outer ring running surface.
PPXA       PA66 axial sliding and sealing ring on both sides. Cylindrical (flat) profile of the outer ring running surface.
X       Cylindrical (flat) profile of the outer ring running surface.

KR      Cam follower fitted with a needle roller and cage assembly.
KRE    Cam follower fitted with a needle roller and cage assembly, with an eccentric collar pressed onto the stud.
KRV              Cam follower fitted with a full complement of needle rollers.
KRVE                 Cam follower fitted with a full complement of needle rollers, with an eccentric collar pressed onto the stud.
NUKR                Cam follower based on a double row, full complement cylindrical roller bearing with two integral outer ring flanges.
NUKRE                   Cam follower based on a double row, full complement cylindrical roller bearing with two integral outer ring flanges, with an eccentric collar pressed onto the stud.
PWKR                 Cam follower based on a double row, full complement cylindrical roller bearing with three integral outer ring flanges.
PWKRE      Cam follower based on a double row, full complement cylindrical roller bearing with three integral outer ring flanges, with an eccentric collar pressed onto the stud.
PNA        Alignment needle roller bearing

NKIA 59             Needle roller / angular contact ball bearing
NKIB 59          Needle roller / angular contact ball bearing
NKX                Needle roller / thrust ball bearing
NKXR                Needle roller / cylindrical roller thrust bearing
NX                      Needle roller / thrust ball bearing, full complement thrust bearing
Z                 Combined needle roller bearing, factory greased thrust bearing with a cover without lubrication holes over the outside diameter

IR      Needle roller bearing inner ring
LR        Needle roller bearing inner ring
RN       Needle roller
BF      Needle roller with flat ends
EGS    Inner ring with a non-directionally ground raceway
VGS    Inner ring with a pre-ground raceway and a machining allowance
                 
Número de Parte

NKXR 20 Z
NKXR 30 Z
NKXR 35 Z
NKXR 40
NKXR 40 Z
NKXR 45 Z
NUKR 35 A
NUKR 40 A
NUKR 40 XA
NUKR 47 A
NUKR 52 A
NUKR 52 XA
NUKR 62 A
NUKR 72 A
NUKR 80 A
NUKR 80 XA
NUKR 90 A
NUKRE 47 A
NUKRE 52 A
NUKRE 62 A
NUTR 15 A
NUTR 1542 A
NUTR 17 A
NUTR 17 X
NUTR 1747 A
NUTR 1747 X
NUTR 20 A
NUTR 2052 A
NUTR 25 A
NUTR 25 X
NUTR 2562 A
NUTR 2562 X
NUTR 30 A
NUTR 30 X
NUTR 3072 A
NUTR 3072 X
NUTR 35 A
NUTR 3580 A
NUTR 3580 A/W64
NUTR 40 A
NUTR 4090 A
NUTR 4090 X
NUTR 45 A
NUTR 45100 A
NUTR 45100 X
NUTR 50 A
NUTR 50 X
NUTR 50110 A
NUTR 50110 X
NX 35
PNA 15/32
PNA 25/47
PNA 35/55
PWKR 40.2RS
PWKR 52.2RS
PWKR 72.2RS
PWKR 80.2RS
PWKR 90.2RS
PWKRE 40.2RS
PWTR 20.2RS
PWTR 30.2RS
PWTR 40.2RS
RNA 22/8.2RS
RNA 22/8.2RSX
RNA 4828
RNA 4834
RNA 49/32
RNA 4900
RNA 4900.2RS
RNA 4903.2RS
RNA 4904
RNA 4904.2RS
RNA 4905
RNA 4905.2RS
RNA 4906
RNA 4907
RNA 4907.2RS
RNA 4908
RNA 4909
RNA 4913
RNA 4914
RNA 4916
RNA 4926
RNA 4928
RNA 69/22
RNA 69/32
RNA 6901
RNA 6903
RNA 6904
RNA 6905
RNA 6906
RNA 6907
RNA 6908
RNA 6909
RNA 6910
RNA 6912
RNA 6913
RNA 6914
RNA 6915
RNA 6917
RNAO 12X22X12 TN
RNAO 25X35X17
RNAO 50X65X20
RSTO 17
STO 10
STO 15
STO 17
STO 20
STO 25 X
STO 8 XTN

More information about bearing,  please contact me.

SKF ,  FAG , TIMKEN , NSK , KOYO , NACHI , NTN , INA , Luk , IKO , THK ,   FYH , ASAHI , SNR, NADELLA , URB, ZKL, ZVL ,  TORRINGTON ,  JNS, IJK , GMN , GRW , STIEBER, DODGE, FAFNIR , MCGILL , ROLLWAY, LINK-BELT  PEER,  RHP, FLT  etc

 
More information about bearing,  please contact me.

OBetter Bearing company can supply the  quality bearing with the competitive Price.  please contact me.

manufacturer and exporter
Co. Name: Shandong Obetter Bearing Co., Ltd
WebSite: www.obtbearing.com  
E-mail: obtbearing@163.com 
Mobile & WhatsApp : 0086-130-6503-2620

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