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KOYO 7221 MODELS

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7221 KOYO Single-row, matched pair angular contact ball bearings

Name: 7221 KOYO Single-row, matched pair angular contact ball bearings
Brand: KOYO
SKU: 7221
Rating: 4.9 (5 reviews)

KOYO 7221 Bearing SPECIFICATIONS

Brand Name:KOYO
Model Number:
7221
d:1 in
operating temperature range::Maximum of +800 °F
D:1-3/16 in
maximum pv value::75000
overall length::2 in
maximum p value::3000 psi
sleeve bearing type::Plain Sleeve
maximum v value::750 fp/min

Download KOYO 7221 Spec Sheet

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AFEX Bearing Equipment Co., Ltd.China

AFEX Bearing Equipment Co., Ltd.2020-07-10 09:46:19
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7221 KOYO Single-row, matched pair angular contact ball bearings Details

d:1 in
operating temperature range::Maximum of +800 °F
D:1-3/16 in
maximum pv value::75000
overall length::2 in
maximum p value::3000 psi
sleeve bearing type::Plain Sleeve
maximum v value::750 fp/min
bearing material::Leaded-Tin Bronze
material specification::SAE 660 (C932)
groove/plug type::None
standards met::ASTM B584-78

7221 KOYO Single-row, matched pair angular contact ball bearings pdf

KOYO 7221 Single-Row Deep Groove Ball Bearings Description

Fillet Radius rb	1.50 mm
Basic Dynamic Radial Load Rating C	507000 N
Oil Speed Rating n2	1900 rpm
B	78.00 mm
Basic Static Radial Load Rating Co	710000 N
d	190.000 mm
D	400.0000 mm
Fillet Radius ra	4.00 mm
Grease Speed Rating n1	1600 rpm

GET MORE 7221 KOYO Single-row, matched pair angular contact ball bearings
No.	Brand	e	T	B	C	R	r	a	d
72212C/72487	Timken	-	36,512 mm	32,791 mm	25,4 mm	3,6 mm	3,3 mm	2 mm	53,975 mm
72213C/72487	Timken	-	36,512 mm	32,791 mm	25,4 mm	3,5 mm	3,3 mm	-	53,975 mm
72213C/72500	Timken	-	36,512 mm	32,791 mm	25,4 mm	3,5 mm	3,3 mm	-	53,975 mm
72218/72487	NSK	0.74	36,512 mm	32,791 mm	143 kN	-	-	37 mm	55,562 mm
72218C/72487	NSK	0.74	36,512 mm	32,791 mm	162 kN	-	-	38 mm	55,562 mm
72219C/72487	Timken	-	36,512 mm	32,791 mm	25,4 mm	3,5 mm	3,3 mm	-	55,562 mm
72212/2/72487/2/Q	SKF	-	36.512 mm	32.791 mm	25.4 mm	-	-	36 mm	53.975 mm
72212/72487	Fersa	-	-	-	-	-	-	-	53,975 mm
7221	NTN	-	-	36 mm	157 kN	-	-	60,5 mm	105 mm

NU2338 KOYO Single-row cylindrical roller bearings	B1:208 mm; G2:M 6; d:300 mm; d1:280 mm; d3:380 mm; Mass adapter sleeve assembly:29 kg; B5:53 mm; G:Tr 300x4; G3:9 mm; A:3.9 mm; Hydraulic nut:HMV 60E; B:40 mm;
NU2244 KOYO Single-row cylindrical roller bearings	B1:425 mm; G:Tr 800x7; A:15 mm; Hydraulic nut:HMV 160 E; B2:441 mm; G2:G 1/4; d:750 mm; G1:60 mm; Mass withdrawal sleeve:238 kg; d1:710 mm;
NU34 KOYO Single-row cylindrical roller bearings	H1:95 mm; Oil seal:2 x TSN 313 U; Oil level, max.:40 mm; P90°:260 kN; J7:33 mm; Appropriate attachment bolt, rec. tightening torque:385 N·m; P150°:175 kN; db:75 mm; Ca:58 mm; Pa:140 kN; H2:32 mm; N4 max.:8 mm; A2:141 mm; Bearing (basic designation):1313; P0°:350 kN; N:28 mm; Q120&
NU3244 KOYO Single-row cylindrical roller bearings	D:1030 mm; Ba min.:26 mm; Reference speed:300 r/min; db min.:736 mm; B:236 mm; Mass bearing + sleeve:860 kg; Calculation factor Y0:3.2; ra max.:6 mm; Da max.:1002 mm; d2 ≈:816 mm; B2:90 mm; Calculation factor Y1:3.2; r1,2 min.:7.5 mm; da max.:816 mm; b:22.3 mm; d1:670 mm; d3:830 mm; Basic dyna
NU338 KOYO Single-row cylindrical roller bearings	Housing:SSAFS 226; A2:203.2 mm; A1:130.175 mm; H2:60.325 mm; R2:36.513 mm; H:292.1 mm; Cap bolt recommended tightening torque:515.2 N·m; P180°:151 kN; Cap bolt, SAE grade:8; Initial grease fill:765.45 g; Labyrinth ring (db shaft position):LOR 136; RG:1/2 NPT; Ca:73.787 mm; H1:152.4 mm; R1
NU3338 KOYO Single-row cylindrical roller bearings	Oil Speed Rating n2:2200 rpm; B:110.00 mm; d:120.000 mm; Basic Static Radial Load Rating Co:530000 N; Basic Dynamic Radial Load Rating C:390000 N; Grease Speed Rating n1:1600 rpm; D:260.0000 mm; Fillet Radius ra:2.50 mm; Fillet Radius rb:1.00 mm;
NU1044 KOYO Single-row cylindrical roller bearings	Oil Speed Rating n2:8800 rpm; B:66.00 mm; d:130.000 mm; Grease Speed Rating n1:5900 rpm; D:200.0000 mm; Fillet Radius ra:2.00 mm; Basic Static Radial Load Rating Co:300000 N; Fillet Radius rb:1.00 mm; Basic Dynamic Radial Load Rating C:225000 N;
NU334 KOYO Single-row cylindrical roller bearings	Basic Dynamic Radial Load Rating C:104000 N; d:70.000 mm; Grease Speed Rating n1:4500 rpm; Oil Speed Rating Open/Shielded n2:5300 rpm; B:35.00 mm; Sealed Speed Rating n3:3000 rpm; Oil Speed Rating n2:5300 rpm; Fillet Radius ra:2.00 mm; D:150.0000 mm; Grease Speed Rating Open/Shielded n1:4500 rpm; Ac
NU3144 KOYO Single-row cylindrical roller bearings	Sleeve:S 20x3.7/16; Mass adapter sleeve assembly:2 kg; B1:72.619 mm; B:19.304 mm; Hydraulic nut:HMVC 20E; d3 max.:131.902 mm; d1:87.313 mm; d:100 mm; Threads per inch:12; B4:21.438 mm; G:99.517 mm;
N24 KOYO Single-row cylindrical roller bearings	da min.:531 mm; Reference speed:240 r/min; r1,2 min.:4 mm; H:112 mm; Da max.:433 mm; d:400 mm; Basic static load rating C0:10400 kN; Fatigue load limit Pu:735 kN; Basic dynamic load rating C:2120 kN; B:33.5 mm; Mass bearing:73 kg; D:540 mm; Limiting speed:500 r/min; Minimum axial load factor A:8.653
NU244 KOYO Single-row cylindrical roller bearings	Appropriate attachment bolt size G:0.875 in; ba:38.894 mm; Initial grease fill:365.71 g; P150°:32 kN; L:387.35 mm; R2:30.163 mm; End plug (suffix Y):EPR 10; Cap bolt, SAE grade:8; R1:65.088 mm; PG:1/4 NPT; J max.:333.375 mm; J min.:295.275 mm; Ca:69.799 mm; A2:173.037 mm; P120°:35.6 kN; P180
NU234 KOYO Single-row cylindrical roller bearings	Ball diameter Dw:7.938 mm; db min.:59.6 mm; Reference grease quantity Gref:2.49 cm³; D1:72.3 mm; Calculation factor (back-to-back, face-to-face) Y1:0.92; Calculation factor f2D:1.17; Calculation factor f2B:1.07; Static axial stiffness, preload class B:179 N/µm; Number of balls z:23; Prelo
NU2240R KOYO Single-row cylindrical roller bearings	d1:55.563 mm; Hydraulic nut:HMV 13 E; G:M 65x2; d3:85 mm; Mass adapter sleeve assembly:0.76 kg; B:15 mm; d:65 mm; B1:65 mm;
NU240R KOYO Single-row cylindrical roller bearings	d:35.000 mm; Grease Speed Rating n1:6000 rpm; Sealed Speed Rating n3:6000 rpm; Basic Static Radial Load Rating Co:27500 N; B:27.00 mm; Fillet Radius ra:1.00 mm; Basic Dynamic Radial Load Rating C:37700 N; Oil Speed Rating n2:8000 rpm; D:72.0000 mm; Accessories:One Shield & Snap-Ri;
NU224 KOYO Single-row cylindrical roller bearings	Appropriate attachment bolt size G:0.75 in; Pa:27.6 kN; Ca:69.799 mm; N1:22.225 mm; PG:1/4 NPT; A2:235.744 mm; H:222.25 mm; da:85 mm; J max.:333.375 mm; Cap bolt recommended tightening torque:515.2 N·m; P180°:42.7 kN; Mass pillow block:34.7 kg; Cap bolt, SAE grade:8; P90°:62.3 kN; J1:
NU104 KOYO Single-row cylindrical roller bearings	Design variant/feature:TQON/GW; Basic static load rating C0:22400 kN; Fatigue load limit Pu:1530 kN; Comparative radial load rating CF:1760 kN; T:365.125 mm; r1,2 min.:3.3 mm; Mass bearing:418 kg; D:812.8 mm; Calculation factor Y2:3; Thrust factor K:1.76; d1 ≈:698 mm; B:365.125 mm; Basic dynam

7221 KOYO Single-row, matched pair angular contact ball bearings Video

KOYO 7221 Bearing|Size:105 * 190 * 36

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Koyo 7221B/DB bearing - A Leading China Distributor

Koyo 7221B/DB bearing are widely used in industrial drive, agriculture, compressors, motors and generators, construction, industrial fan, industrial transmission

KOYO 7221 INTERCHANGE

Single-Row Deep Groove Ball Bearings Part series 7221 is a potential replacement for these common bearing part numbers:

NSK7221
SKF7221
NTN7221
FAG7221
TIMKEN7221
KOYO7221
NACHI7221
DODGE7221

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