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Home>Products>Full Complement Cylindrical Roller Bearings>NNU4068 KOYO Double-row cylindrical roller bearings

KOYO NNU4068 MODELS

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NNU4068 KOYO Double-row cylindrical roller bearings

Name: NNU4068 KOYO Double-row cylindrical roller bearings
Brand: KOYO
SKU: NNU4068
Rating: 4.9 (5 reviews)

KOYO NNU4068 Bearing SPECIFICATIONS

Brand Name:KOYO
Model Number:
NNU4068
Series:HH224300
Cone Part Number:HH224346H
Design Units:Imperial
Cage Type:Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1:302000 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2:78400 lbf
d:4.5000 in
B - Cone Width:2.6250 in

Download KOYO NNU4068 Spec Sheet

TIMKEN BEARING MFG.CORP

TIMKEN BEARING MFG.CORPChina

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NNU4068 KOYO Double-row cylindrical roller bearings Product Description

Series:HH224300
Cone Part Number:HH224346H
Design Units:Imperial
Cage Type:Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1:302000 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2:78400 lbf
d:4.5000 in
B - Cone Width:2.6250 in
R - Cone Backface To Clear Radius3:0.280 in
da - Cone Frontface Backing Diameter:5.2 in
db - Cone Backface Backing Diameter:5.79 in
Ab - Cage-Cone Frontface Clearance:0.15 in
Aa - Cage-Cone Backface Clearance:0.08 in
a - Effective Center Location4:-0.74 in
C90 - Dynamic Radial Rating (90 million revolutions)5:45000 lbf
C1 - Dynamic Radial Rating (1 million revolutions)6:174000 lbf
C0 - Static Radial Rating:192000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)7:25100 lbf
K - Factor8:1.79
G1 - Heat Generation Factor (Roller-Raceway):351.4
G2 - Heat Generation Factor (Rib-Roller End):37.6
Cg - Geometry Factor:0.116

NNU4068 KOYO Double-row cylindrical roller bearings pdf

KOYO NNU4068 NNU4068 KOYO Double-row cylindrical roller bearings Specification details

Cur	1020 N / Fatigue lim
D1	45,1 mm
α	30 ° / Angle
d1	35,8 mm
Cr	22000 N / Dynamic lo
Width (mm)	20,6
Size (mm)	25x52x20.6
Da max	46,4 mm
Bearing number	3205-BD
D	52 mm
nG	14300 1/min / Limiti
d	25 mm
Bore Diameter (mm)	25
C0r	15200 N / Static loa
rmin	1 mm
B	20,6 mm
Outer Diameter (mm)	52
da min	30,6 mm
m	0,175 kg / Weight
nB	12700 1/min / Refere

Sponsored products related to NNU4068 KOYO Double-row cylindrical roller bearings
No.	Brand	d	C	D	B	B1	C0	B2	d1
4068	Ruville	-	-	-	-	-	-	-	-
24068E	NACHI	340 mm	4100 kN	520 mm	180 mm	-	6050 kN	-	-
24068EK30	NACHI	340 mm	4100 kN	520 mm	180 mm	-	6050 kN	-	-
24068-K30-MB-W33+AH24068	NKE	340 mm	3007 kN	520 mm	180 mm	206 mm	6196 kN	225 mm	320 mm
24068-MB-W33	NKE	340 mm	3007 kN	520 mm	180 mm	-	6196 kN	-	-
24068B	NTN	340 mm	3 000 kN	520 mm	180 mm	-	6 200 kN	-	-
24068BK30	NTN	340 mm	3 000 kN	520 mm	180 mm	-	6 200 kN	-	-
24068CAE4	NSK	340 mm	2920 kN	520 mm	180 mm	-	6050 kN	-	-
24068CAK30E4	NSK	340 mm	2920 kN	520 mm	180 mm	-	6050 kN	-	-
24068CAK30W33	AST	340	-	520	-	-	-	-	-
24068CAW33	AST	340	-	520	-	-	-	-	-

4CR600A KOYO Four-row cylindrical roller bearings	Bearing number:645/632; (Grease) Lubrication Speed:2500 r/min; D:136.525 mm; Bore Diameter (mm):71.438; B:41.275 mm; Calculation factor (e):0.36; r1 min.:6.4 mm; Size (mm):71.438x136.525x41.27; (Oil) Lubrication Speed:3500 r/min; C:31.750 mm; d:71.438 mm; Width (mm):41.275; Weight:2,5 Kg; a:11.0 mm;
122FC8557 KOYO Four-row cylindrical roller bearings	e - ISO Factor3:0.21; Design Unit:METRIC; B - Outer Ring Width:56.000 mm; Reference Thermal Speed Rating (Oil)7:2600; Y2 - ISO Factor6:3.07; da - Inner Ring Backing Diameter:169.000 mm; Y0 - ISO Factor4:3.14; C1(2) - Dynamic Radial Rating (Two-Rows):621000 N; Cg - Geometry Factor8:0.0856; Bearing We
120FC87540A KOYO Four-row cylindrical roller bearings	r2 min.:3,2 mm; Bore Diameter (mm):57,15; Calculation factor (Y0):0,76; Weight:1,572 Kg; d:57,15 mm; Width (mm):30,162; C:23,812 mm; Calculation factor (e):0,44; db min:68 mm; r min.:3,6 mm; ra max.:3,6 mm; D:117,475 mm; da min.:74 mm; Da:104 mm; rb max.:3,2 mm; Basic static load rating (C0):179 kN;
120FC8764 KOYO Four-row cylindrical roller bearings	Width (mm):28; Bore Diameter (mm):110; C:28 mm; (Grease) Lubrication Speed:7500 r/min; Weight:2 Kg; Angle (α):15 °; Bearing number:7022 CTBP4; Basic static load rating (C0):110 kN; D:170 mm; Size (mm):110x170x28; Outer Diameter (mm):170; d:110 mm; B1:28 mm; Basic dynamic load rating (C):11
4CR600B KOYO Four-row cylindrical roller bearings	Width (mm):14; Basic dynamic load rating (C):9,9 kN; C:14 mm; Bearing number:1204; Size (mm):20x47x14; B:14 mm; Outer Diameter (mm):47; d:20 mm; (Grease) Lubrication Speed:14000 r/min; Weight:0,12 Kg; Bore Diameter (mm):20; D:47 mm; Basic static load rating (C0):2,6 kN;
4CR6 KOYO Four-row cylindrical roller bearings	B:34 mm; Bore Diameter (mm):100; (Grease) Lubrication Speed:3200 r/min; Weight:3.73 Kg; Width (mm):34; d:100 mm; Outer Diameter (mm):180; D:180 mm; Bearing number:NJ 220 E; Basic dynamic load rating (C):250 kN; Size (mm):100x180x34; Fw:119 mm; Basic static load rating (C0):305 kN; r1 min.:2.1 mm; r
122FC8766 KOYO Four-row cylindrical roller bearings	ra1 max.:0,6 mm; series:ARN; D1:60 mm; C:20 mm; Da max.:64 mm; da min.:56 mm; Weight:0,85 Kg; Static load rating axial (C0):121 kN; bearing material:Chrome Steel; bore diameter:35 mm; r1 min.:0,6 mm; Weight / Kilogram:0.813; Dynamic load rating axial (C):43 kN; cage material:Steel; d1:35 mm; Manufac
126FC8036 KOYO Four-row cylindrical roller bearings	A:58 mm; G:16 mm; A1:38 mm; Basic dynamic load rating (C):35,1 kN; s1:30,5 mm; Bore Diameter (mm):44,45; H1:57,2 mm; Basic static load rating (C0):23,2 kN; N1:20 mm; d:44,45 mm; H:114,5 mm; H2:22 mm; Fatigue load limit (Pu):0,98; B1:55 mm; N:26,5 mm; Bearing number:SYJ 50 KF+HE 2310; J:157,5 mm; Wei

NNU4068 KOYO Double-row cylindrical roller bearings Video

KOYO NNU4068 Double Row Cylindrical Roller Bearings

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Full Complement Cylindrical Roller Bearings Part series NNU4068 is a potential replacement for these common bearing part numbers:

NSKNNU4068
SKFNNU4068
NTNNNU4068
FAGNNU4068
TIMKENNNU4068
KOYONNU4068
NACHINNU4068
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