|
RODAMIENTOS DE DOS Y CUATRO HILERAS DE RODILLOS CILINDRICOS
OBT Bearing 2017-8-1
RODAMIENTOS DE DOS Y CUATRO HILERAS DE RODILLOS CILINDRICOS
SKF double row cylindrical roller bearings of the NNU, NN and NNUP designs differ mainly in the flange configuration but may also vary slightly in design for manufacturing, application or maintenance reasons, e.g. with an extended inner ring or with loose flange rings on the outer ring. The basic designs and their most important variants are described in the following.
For bearing arrangements where the bearings are to be mounted with a loose instead of an interference fit on the shaft or roll neck, e.g. to allow rapid roll changes, a special design of double row bearing is supplied by SKF . To alleviate the disadvantage of the loose fit - the inner ring turns on its seat and can cause damage to the bearing and the seat - these special bearings have a helical groove in the bore and/or lubrication grooves in the side faces of the bearing rings. These grooves enable efficient lubrication to be provided for the sliding contact surfaces.
NN design
Inner ring with three integral flanges. Roller guided double pronged cages of brass. Annular groove and lubrication holes in the outer ring .
NNU design
Outer ring with three integral flanges. Roller guided machined double pronged cage of brass. With or without annular groove and/or lubrication holes in the outer ring.
G Helical groove in inner ring bore
W Lubrication grooves in the side faces of the bearing rings
WI Lubrication grooves in the side faces of the inner ring
WO Lubrication grooves in the side faces of the outer ring
W33 Annular groove and three lubrication holes in outer ring
Machined brass cage, roller centred (no designation suffix)
PHA Carbon fibre reinforced PEEK cage, outer ring centred
TN PA66 cage, roller centred
TN9 Glass fibre reinforced PA66 cage, roller centred
TNHA Glass fibre reinforced PEEK cage, outer ring centred
B Modified internal design
K Tapered bore, taper 1:12
HC5 Rollers made of bearing grade silicon nitride Si3N4 (hybrid bearing)
SP Dimensional accuracy in accordance with ISO tolerance class 5, running accuracy in accordance with ISO tolerance class 4
UP Dimensional accuracy in accordance with ISO tolerance class 4, running accuracy better than ISO tolerance class 4
C2 Radial internal clearance greater than C1
CN Normal radial internal clearance
C3 Radial internal clearance greater than Normal
W33 Annular groove and three lubrication holes in the outer ring
W33X Annular groove and six lubrication holes in the outer ring
VR521 Bearing supplied with measuring report (standard for NN 30 series bearings with d > 130 mm)
VU001 Inner ring raceway with finish-grinding allowance
úmero de Parte
314833 B/U4
315189 A
319181/HB2
319262 B
L 313445
L 313823
L 313891 A
L 313893
L 314385
L 314485
L 315189
L 315643/C4PVJ202
L 635194
NN 3005 K/SP
NN 3006 KTN/SP
NN 3007 K/SP
NN 3007/SP
NN 3008 TN/SP
NN 3009 KTN/SP
NN 3009 TN/SP
NN 3010 KTN/SP
NN 3010 TN/SP
NN 3011 KTN/SP
NN 3011 TN/SP
NN 3012 KTN/SP
NN 3013 KTN/SP
NN 3013 KTN/SPW33
NN 3013 KTN/UP
NN 3013 TN/SP
NN 3014 KTN/SP
NN 3014 TN/SP
NN 3015 KTN/SP
NN 3015 TN/SP
NN 3016 KTN/SP
NN 3016 TN/SP
NN 3017 KTN9/SP
NN 3017 TN9/SP
NN 3018 KTN9/SP
NN 3018 TN9/SP
NN 3019 KTN9/SPW33
NN 3021 KTN9/SP
NN 3021 KTN9/SPW33
NN 3022 KTN9/SP
NN 3024 KTN9/SP
NN 3028 K/SPW33
NN 3030 K/SPW33
NN 3032 K/SPW33
NN 3038 K/SPW33
NN 3040 K/SPW33
NN 3044 K/SPW33
NN 3048 K/SPW33
NNF 5004 ADB-2LSV
NNF 5005 ADB-2LSV
NNF 5007 ADB-2LSV
NNF 5010 ADB-2LSV
NNF 5012 ADB-2LSV
NNF 5013 ADB-2LSV
NNF 5014 ADB-2LSV
NNF 5015 ADB-2LSV
NNF 5018 ADA-2LSV
NNF 5020 ADA-2LSV
NNF 5022 ADA-2LSV
NNF 5026 ADA-2LSV
NNF 5034 ADA-2LSV
NNU 4152 M
NNU 4164 F/C3
NNU 4920 BK/SPW33
NNU 4921 B/SPW33
NNU 4921 BK/SPW33
NNU 4922 BK/SPW33
NNU 4924 B/SPW33
NNU 4924 BK/SPW33
NNU 4926 B/SPC3W33
NNU 4926 B/SPW33
NNU 4928 BK/SPW33
NNU 4930 B/SPC3W33
NNU 4930 B/SPW33
NNU 4930 BK/SPW33
NNU 4932 BK/SPW33
NNU 4934 B/SPC3W33
NNU 4934 BK/SPW33
NNU 4936 B/SPC3W33
NNU 4936 BK/SPW33
NNU 4938 B/SPW33
NNU 4938 BK/SPW33
NNU 4940 B/SPC3W33
NNU 4940 B/SPW33
NNU 4940 BK/SPW33
NNU 4944 B/SPW33
NNU 4948 BK/SPW33
NNU 4952 B/SPC3W33
NNU 4956 BK/SPW33
NNU 4964 B/SPW33
R 313445 C
R 313823
R 313891 A
R 314385
R 314485 A
R 315643/VJ202
R 8-2Z
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
rodamientos - roulements - подшипникии - cuscinetti - rolamentos - lo?iska - rulmanlar - Kegelrollagers
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 |
