performance test data sealed spherical roller bearings · · 2016-03-22ultage sealed spherical...

1. Because the internal radial clearance of “ULTAGE Series Sealed Spherical Roller Bearings” with tapered bores cannot be measured with a thickness gauge, please monitor clearances by measuring the axial movement of the inner ring as shown in Table 1.

2. During assembly, if misalignment exceeding the allowable misalignment angle of ±0.5˚ is applied to the bearing, rollers may come in direct contact with seals causing seal deformation. Furthermore, if additional force is applied under these conditions, seals may separate from the bearing entirely. Therefore, caution is advised.

3. Please use Lithium mineral grease. In case other types of grease are to be used, please consult NTN.

4. If a shrink fit is to be applied, please do not exceed a bearing temperature of 100˚C. However, these bearing cannot be shrink fit via immersion in a hot oil bath.

Rotational speed min-1

Out

er ri

ng te

mpe

ratu

re ri

se ˚

C

Rot

atio

nal t

orqu

e N・

mm

00.0

20.0

40.0

60.0

80.0

100.0

200 400 600 800 1000 1200 1400 1600Rotational speed min-1

00

50

100

150

200

200 400 600 800 1000 1200 1400 1600

Performance Test Data

Handling Precautions

ULTAGE Sealed Spherical Roller Bearings [ WA Type ]

●Heat Run Test

　[Test conditions]　　Bearing ：WA22218EALLSD1　　Load ：Radial load 294N｛30kgf｝　　Speed ：200～1400min-1

　　Lubrication ：Shell Alvania EP grease No.2 (NTN code 8A)　　Amount of grease ：20% of free space　　Operating time ：Until temperature rise stabilizes

●Noise Test

　[Test conditions]　　Bearing ：WA22218EALLSD1　　Load ：Radial load 980N｛100kgf｝　　Speed ：600, 900, 1200min-1

　　Lubrication ：Shell Alvania EP grease No.2 (NTN code 8A)　　Amount of grease ：20% of free space

●Grease Leakage Test

　[Test conditions]　　Bearing ：WA22218EALLSD1　　Load ：Radial load 1960N｛200kgf｝　　Speed ：1000min-1

　　Lubrication ：Shell Alvania EP grease No.2 (NTN code 8A)　　Amount of grease ：20% of free space　　Operating time ：100 hours

[Test results] [Test results]

[Test results]

Outer ring temperature rise Rotational torque

24

30

40

50

65

80

100

120

30

40

50

65

80

100

120

130

0.010

0.010

0.015

0.025

0.035

0.035

0.050

0.060

0.015

0.015

0.020

0.030

0.040

0.045

0.060

0.070

Nominal borediameter

Axialdisplacement

drive-up

Minimum residualinternal clearance

Reduction inradial internal

clearance

Table 1 Installing sealed tapered bore bearings

mmd

over incl. min max

0.15

0.20

0.30

0.35

0.45

0.60

0.75

0.85

0.20

0.25

0.35

0.40

0.55

0.70

0.85

0.95

min max

0.015

0.020

0.025

0.025

0.030

0.035

0.040

0.050

0.025

0.035

0.040

0.045

0.055

0.065

0.075

0.090

CN C3

0.040

0.050

0.060

0.065

0.080

0.095

0.110

0.130

C4

600

900

1200

Noize level dBA

min-1 50 60 70 80

[Test results]Accumulated total amount

of grease leakage

25h

0.47g

50h

0.58g

100h

0.63g

Rotationalspeed

HEADQUARTERSNTN Corporation URL http://www.ntn.co.jp1-3-17, Kyomachibori, Nishi-ku, Osaka-shi, Osaka 550-0003 Japan Phone: +81-6-6443-5001

NTN USA Corporation URL http://www.ntnamerica.com1600 E. Bishop Court, P.O. Box 7604, Mount Prospect, IL 60056-7604, U.S.A. Phone: +1-847-298-7500 Fax: +1-847-294-1209

SALES NETWORKNTN Bearing Corp. of AmericaHead Office / 1600 E. Bishop Court, P.O. Box 7604, Mount Prospect, IL 60056-7604, U.S.A. Phone: +1-847-298-7500 Fax: +1-847-699-9744Central Sales Office / 2413 North Main Street, East Peoria, Illinois 61611 Phone: +1-309-699-8600 Fax: +1-309-699-8670NTN Automotive Center / 39255 W. 12 Mile Road, Farmington Hills, MI 48331-2975, U.S.A. Phone: +1-248-324-4700 Fax: +1-248-324-1103

NTN Bearing Corp. of Canada Ltd. URL http://www.ntn.caHead Office / 305 Courtneypark Drive West, Mississauga, Ontario, L5W 1Y4, Canada Phone: +1-905-564-2700 Fax: +1-905-564-7749Vancouver Branch / 106B - 3680 Bonneville Place Burnaby, B.C. V3N 4T6, Canada Phone: +1-604-444-2007 Fax: +1-604-444-2665Edmonton Branch / 4608-97th Street, Edmonton, Alberta T6E 5N9, Canada Phone: +1-780-435-6200 Fax: +1-780-435-3600Toronto Branch / 305 Courtneypark Drive West, Mississauga, Ontario L5W 1Y4, Canada Phone: +1-905-564-9600 Fax: +1-905-564-9609Montreal Branch / 4973 Levy Street, Ville, St-Laurent, Quebec, H4R 2N9, Canada Phone: +1-514-333-8054 Fax: +1-514-333-1078

NTN Wälzlager (Europa) GmbH. URL http://www.ntn-snr.comHead Office / Max-Planck-Str. 23, 40699 Erkrath, F.R.Germany Phone: +49-211-2508-0 Fax: +49-211-2508-400Stuttgart Branch / Plieninger Str. 63B, 70794 Filderstadt F.R.Germany Phone: +49-711-123901-0 Fax: +49-711-123901-660

NTN Bearings (UK) Ltd. URL http://www.ntn-snr.comWellington Crescent, Fradley Park, Lichfield, Staffordshire, WS13 8RZ, U.K. Phone: +44-1543-445000 Fax: +44-1543-445035

NTN-SNR ROULEMENTS. URL http://www.ntn-snr.comHead Office / 1, rue des Usines B.P. 2017 74010 Annecy Cedex, France Phone: +33-4-50-65-30-00 Fax: +33-4-50-65-32-91Lyon Branch / 51, rue des Docks, 69009 Lyon, France Phone: +33-4-78-66-68-00 Fax: +33-4-78-66-68-20Paris Branch / 6, rue Auguste Comte, BP49, 92174 Vanves Cedex, France Phone: +33-1-40-93-66-00 Fax: +33-1-40-93-66-10Cran Gevrier Branch / 6 route de la Salle, 74960, Cran Gevrier, France Phone: +33-4-50-65-93-00 Fax: +33-4-50-65-93-46Haguenau Branch / 4, rue de la Sablière, BP30338, 67507 Haguenau Cedex, France Phone: +33-3-88-53-22-22 Fax: +33-3-88-73-46-95Argonay Branch / 114, Rte de Champ Farçon, 74370, Argonay, France Phone: +33-4-50-65-94-00 Fax: +33-4-50-65-94-25

SNR Wälzlager GmbH. Head Office / Max-Planck-Str. 23, 40699 Erkrath, F.R.Germany Phone: +49-211-2508-0 Fax: +49-211-2508-400 Bielefeld Branch / Friedrich-Hagemann-Straße 66, 33719 Bielefeld, F.R.Germany Phone: +49-521-9-24-00-0 Fax: +49-521-9-24-00-90 Stuttgart Branch / Plieninger Str. 63B, 70794 Filderstadt F.R.Germany Phone: +49-711-123901-0 Fax: +49-711-123901-660

NTN-SNR ITALIA S.P.A. / Via Riccardo Lombardi, 19/4, 20153 Milan, Italy Phone: +39-02-47-99-86-00 Fax: +39-02-33-50-06-56NTN-SNR IBERICA SA / Calle Barberán n˚6, 28035 Madrid, Spain Phone: +34-916-71-89-13 Fax: +34-916-73-65-48NTN-SNR RULMENTI S.R.L. / Zona Industriala-Vest, 6 Strada Salzburg, 24 00 SIBIU, Romania Phone: +40-269-20-35-00 Fax: +40-269-20-35-25NTN-SNR Marocco / Route cotiere 111, Quartier industriel, Polygone 1, Casablanca, Morocco Phone: +212-522-66-76-80 Fax: +212-522-66-5166

NTN Bearing-Singapore (Pte) Ltd. URL http://www.ntn.com.sgHead Office / No.9 Clementi Loop Singapore 129812 Phone: + 65-64698066 Fax: +65-64695400Philippine Representative Office / Unit 1002 Philippine Axa Life Centre Condominium Corporation Sen. Gil Puyat Ave Corner Tindalo Street Makati City, Philippines Phone: +63-2-759-4407 Fax: +63-2-759-4409Vietnam Representative Office / 303, 3rd of Thanh Dong Building 132 - 138 Kim Ma Str., Ba Dinh Dist., Ha Noi, Viet Nam Phone: +84-4-37347661 Fax: +84-4-37347662

NTN Bearing India PVT. Ltd.Head Office / SPIC Annexe Building, 2nd Floor No.86, Mount Road, Guindy Chennai 600032, India Phone: +91-0-44-33707700 Fax: +91-0-44-33707701Delhi Branch / 715-716, International Trade Tower, Nehru Place, New Delhi - 1100019, India Phone: +91-0-11-40520406 Fax: +91-0-11-40520407

NTN (China) Investment Corp. URL http://www.ntn.com.cnShanghai Head Office / No.6 building No.1666 Nanle Road, Songjiang Industrial Zone, Songjiang, Shanghai 201611, China Phone: +86-21-5774-5500 Fax: +86-21-5778-2898Beijing Branch / Unit 3018, South Tower, Beijing Kerry Centre, 1 Guanghua Road, Chaoyang District, Beijing 100020, China Phone: +86-10-6568-3069 Fax: +86-10-6568-2278Guangzhou Branch / Room 3606, Onelink Center, No.230-232 Tianhe Road, Tianhe District, Guangzhou 510620, China Phone: +86-20-3877-2943 Fax: +86-20-3877-2942Nanjing Branch / Room 18A, Nanjing IFC, No.1 Hanzhong Rd, Baixia District, Nanjing 210029, China Phone: +86-25-8477-5355 Fax: +86-25-8477-5360Chongqing Branch / Room 15-6, Carnival mansion, No.9 Guanyingqiao Street, Jiangbei District, Chongqing 400020, China Phone: +86-23-6796-0812 Fax: +86-23-6796-0878Shenyang Branch / Room 2606, China Resources Building, No.286 Qingnian Street, Heping District, Shenyang 110004, China Phone: +86-24-3137-9186 Fax: +86-24-3137-9185

NTN China Ltd. URL http://www.ntnchina.comHong Kong Office / Room 1914-15, Park-In Commercial Centre, 56 Dundas Street, Mongkok, Kowloon, Hong Kong Phone: +852-2385-5097 Fax: +852-2385-2138

NTN Bearing-Thailand Co., Ltd.Head Office / 12th Floor, Panjathani Tower, 127/15 Nonsee Road, Chongnonsee Yannawa, Bangkok 10120, Thailand Phone: +66-2-681-0401 Fax: +66-2-681-0408Khon Kaen Branch / 189-191 Ruen Rom Road Tambon Nai-Muang, Amphur Muang, Kohn Kaen, 40000, Thailand Phone: +66-43-223679 Fax: +66-43-223061Haad Yai Branch / 198-198/1 Nipat U-Thid 2 Road, Amphur Haad Yai, Songkhla, 90110, Thailand Phone: +66-74-236568 Fax: +66-74-231520Bangna Branch / 35/35 Bangna-Trad Road, KM11 Bangplee, Samutprakarn, 10540, Thailand Phone: +66-2-7501732 Fax: +66-2-7501731Chiangmai Branch / 208 (Room B3-B4)Moo4 2nd, Ring Road, T.Nong Hoi, A.Muang, Chiangmai 50000, Thailand Phone: +66-53-874328 Fax: +66-53-874330

NTN Bearing-Malaysia Sdn. Bhd.Head Office / No.2, Jalan Arkitek U 1/22, Hicom Glenmarie Industrial Park, 40150 Shah Alam, Selangor, Malaysia Phone: +60-3-55696088 Fax: +60-3-55690200Butterworth Branch / 4700, Jalan Permatang Pauh, 13400 Butterworth, Malaysia Phone: +60-4-3328312 Fax: +60-4-3324407Ipoh Branch Office /65, Medan Kidd, Kinta Mansion, 30200 Ipoh, Malaysia Phone: +60-5-2547743 Fax: +60-5-2538077Kuantan Branch / B-72, Ground Floor, Jalan Beserah 25300 Kuantan, Malaysia Phone: +60-9-5141132 Fax: +60-9-5141164Johor Bahru Branch / 51 Jalan, Sri Bahagia 5, Taman Sri Bahagia, Tampoi, 81200 Johor Bahru, Malaysia Phone: +60-7-2364929 Fax: +60-7-2370897

PT. NTN Bearing IndonesiaC-21, 22 MM2100 Industrial Town, Cikarang Barat, BEKASI 17520 West Jave Indonesia Phone : +62-21-89983827 Fax : +62-21-89983831

NTN-CBC (Australia) Pty. Ltd.3, The Crescent, Kingsgrove, NSW 2008, Australia Phone: +61-2-99479200 Fax: +61-2-95543311

NTN de Mexico, S.A. URL http://www.ntnmexico.com.mxMexico Head Office / Emilio Cárdenas No.158 Apdo.124, C.P.54030, Tlalnepantla, Edo.deMéxico, Mexico Phone: +52-55-5390-1133 Fax: +52-55-5565-8545Guadalajara Branch / Calle 22 No.2465, Zona Industrial, C.P.44940, Guadalajara, Jalisco, Mexico Phone: +52-33-3145-1448 Fax: +52-33-3145-1594Monterrey Branch / Av. Ruiz Cortines No.1336 Ote, Col. La Purisima, C.P.67120, Cd. Guadalupe, Nuevo Leon, Mexico Phone: +52-818-334-9931 Fax: +52-818-334-9932Mexicali Branch / Blvd. Benito Juárez No.3293 Esq. Ayuntamiento, C.P.21360, Mexicali, BCN, Mexico Phone: +52-686-563-3632 Fax: +52-686-582-2057

NTN Sudamericana, S.A. URL http://www.ntnsudamericana.comWorld Trade Center Panama Calle 53 Este, Urbanización Marbella Piso NO.16, Oficina 1601 Apartado Postal 832-0487, Panamá, Rep.de Panamá Phone: +507-269-4777 Fax: +507-264-5592

NTN do Brasil Ltda. URL http://www.ntn.com.brAv. Moema, 94-9˚ Andar-conj, 92a94 CEP 04077-020-Indianópolis-São Paulo-SP, -Brasil Phone: +55-11-5051-0600 Fax: +55-11-5051-2807

NTN Korea Co., Ltd.Head Office / 10th Floor, Press Center, 25, Taepyeong-Ro 1-GA, Jung-Gu, Seoul 100-745, Korea Phone: +82-2-720-3666 Fax: +82-2-720-3669Busan Branch / Rm.707, 7th Floor, Daerim Bldg., 341-5 Bujeon 1-Dong, Busanjin- Gu, Busan, 614-843, Korea Phone: +82-51-811-1351 Fax: +82-51-811-1353

NOTE : The appearance and specifications may be changed without prior notice if required to improve performance. Although care has been taken to assure the accuracy of the data compiled in this catalog, NTN does not assume any liability to any company or person for errors or omissions.

AE74 CAT. No. 3703/E 13. 07. 03. N Printed in Japan

Sealed Spherical Roller Bearings[WA Type]

CAT. No. 3703/ENote: Markings on the seal are not white in actual bearings.

**自動調心ころWA_E_**自動調心ころWA 13/07/16 13:43 ページ 2

WA22205EALLSW33

WA22206EALLSW33

WA22207EALLSW33

WA22208EALLSD1

WA22209EALLSD1

WA22210EALLSD1

WA22211EALLSD1

WA22212EALLSD1

WA22213EALLSD1

WA22214EALLSD1

WA22215EALLSD1

WA22216EALLSD1

WA22217EALLSD1

WA22218EALLSD1

WA22220EALLSD1

WA22222EALLSD1

WA22224EALLSD1

WA22226EALLSD1

WA22207EALLSKW33

WA22208EALLSKD1

WA22209EALLSKD1

WA22210EALLSKD1

WA22211EALLSKD1

WA22212EALLSKD1

WA22213EALLSKD1

WA22214EALLSKD1

WA22215EALLSKD1

WA22216EALLSKD1

WA22217EALLSKD1

WA22218EALLSKD1

WA22220EALLSKD1

WA22222EALLSKD1

WA22224EALLSKD1

WA22226EALLSKD1

25

30

35

40

45

50

55

60

65

70

75

80

85

90

100

110

120

130

3040506580

100120140160180200225

3040506580

100120140160180200225250

15152020303540506065708090

2530354050607595

110120130140150

2530354050607595

110120130140150

4045556580

100120145170180200220240

4045556580

100120145170180200220240

55607590

110135160190220240260290320

55607590

110135160190220240260290320

7580

100120145180210240280310340380420

52

62

72

80

85

90

100

110

120

125

130

140

150

160

180

200

215

230

23

25

28

28

28

28

31

34

38

38

38

40

44

48

55

63

69

75

57.3

75.7

100

116

121

130

155

187

226

235

244

278

324

384

472

602

688

808

46.1

64.5

92

105

113

124

148

181

224

240

249

287

330

398

495

643

753

898

4,700

6,580

9,380

10,700

11,500

12,600

15,100

18,400

22,900

24,400

25,400

29,300

33,600

40,600

50,500

65,600

76,800

91,600

5,840

7,720

10,200

11,800

12,300

13,300

15,800

19,100

23,100

24,000

24,800

28,400

33,000

39,200

48,100

61,400

70,100

82,400

1

1

1.1

1.1

1.1

1.1

1.5

1.5

1.5

1.5

1.5

2

2

2

2.1

2.1

2.1

3

1.5

2

2

2.5

2.5

2.5

3

3

3.5

3.5

3.5

3.5

3.5

4.5

5

6

6

6

3

4

5

5

6

6

6

7

8

7

7

8

8

10

11

12

12

13

Bearing numbers Boundary dimensionsmm


1) Cylindrical bore

mm

C2 CN C3 C4d

kN kgfCylindrical bore

over incl. min max min max min max min max

Unit：µm Unit：µm

Tapered bore d D B W0 C0r C0rCr Crrs min d0

29

36

42

47

52

57

64

69

74

79

84

91

96

101

112

122

132

144

29

36

43

48

53

58

64

70

76

82

86

93

98

103

115

127

138

148

D1 W33

4 3

47

56

65

73

78

83

93

102

111

116

121

131

140

149

168

188

203

216

47

56

65

73

78

83

93

102

110

116

121

131

140

147

165

183

197

211

0.34

0.31

0.31

0.27

0.26

0.24

0.23

0.24

0.24

0.22

0.22

0.22

0.22

0.23

0.24

0.25

0.25

0.25

2.98

3.20

3.29

3.67

3.93

4.23

4.40

4.23

4.15

4.48

4.67

4.67

4.57

4.31

4.23

4.00

4.08

4.00

2.00

2.15

2.21

2.47

2.64

2.84

2.95

2.84

2.79

3.01

3.14

3.14

3.07

2.90

2.84

2.69

2.74

2.69

1.96

2.10

2.16

2.41

2.58

2.78

2.89

2.78

2.73

2.94

3.07

3.07

3.00

2.83

2.78

2.63

2.68

2.63

1.4～2.4

2.0～3.3

2.3～3.9

3.1～5.2

3.4～5.7

3.4～5.6

5.2～7.9

6.6～11.0

8.5～14.2

9.6～16.0

9.9～16.4

12.2～20.3

16.9～28.1

20.4～34.1

28.8～48.0

41.6～69.3

52.8～88.0

62.6～104.4

0.19

0.30

0.50

0.58

0.63

0.70

0.94

1.25

1.72

1.78

1.88

2.32

2.90

3.68

5.40

7.79

9.76

11.9

－

－

0.49

0.57

0.61

0.68

0.91

1.22

1.67

1.73

1.83

2.27

2.83

3.59

5.25

7.58

9.48

11.6

1

1

1.1

1.1

1.1

1.1

1.5

1.5

1.5

1.5

1.5

2

2

2

2.1

2.1

2.1

3

Abutment and fillet dimensions Axial load factor Amount of grease(approx.)

Constant Mass (approx.)

Cylindricalbore

Taperedbore

ged1 D1da min Da max Y1 Y2 Y0rs max

BW0

Z0×d0

r

r

φD

φD

1

φd

φd

1

φd

ra

ra

φD

a

φd

a

1 Y1 0.67 Y2

Fa

Fr

X Y X Y

≦eFa

Fr＞e

Equivalent radial loaddynamicPr＝XFr＋YFaOil inlet number

staticPor＝Fr＋YoFa

For values of e, Y1, Y2 and Yo

see the table below.

Z0

Dimension Table

Bearing Internal Clearance NTN Standard Grease Allowable Speed

Allowable Misalignment

Bearing Number

Allowable Temperature Range

Sealed Spherical Roller Bearings【WA Type】● Brand name: Shell Alvania EP grease No.2 High performance grease for heavy duty containing extreme pressure additives.● Amount of grease: 15～25% of inside free space of the bearing.

● With relubrication : dn≦6×104

● Without relubrication : dn≦8×104

● 0.009 rad (0.5˚)

Features

● Bearing temperature : -20～+1100

WA 222 20 EA LLS K D1 C3Internal clearance codeLubrication hole / lubrication groove code

W33: With oil inlet/oil groove (European market specication)

Bore configuration code No code: Cylindrical bore K: Tapered bore

Seal type codeDimension series codeBore diameter code

Contact seal on both sidesType code EA: Window-type presed steel cage

3040506580

100120140160180200225

3040506580

100120140160180200225250

202530405055658090

100110120140

303545557080

100120130140160180200

303545557080

100120130140160180200

4050607595

110135160180200220250270

4050607595

110135160180200220250270

55658095

120140170200230260290320350

55658095

120140170200230260290320350

7585

100120150180220260300340370410450

2) Tapered bore

mm

C2 CN C3 C4d

over incl. min max min max min max min max

1. The industry’s highest load capacity Both a high load capacity and a longer service life are achieved by adopting the internal design of EA type spherical roller bearing which has a significantly increased roller diameter and the maximum number of rollers guided with the window-type pressed steel cage.

2. Compact design with minimized volume of seals Adopt the contact type dust-proof seal with minimized volume. ① Prevent from intrusion of foreign matters with uniquely designed contact type rubber seals. ② Secure the dust-proof capability by maintaining the constant contact pressure of seals even under aligned conditions.

3. Prelubricated with a long life grease as standard Barings are prelubricated with a long life grease. No cleaning nor greasing are required when being mounted.

4. Oil groove and holes are adopted as standard Adequate greasing into the inside of the bearing is secured with a lubrication groove and holes on the outside diameter of the outer ring.

conventionaldesign of NTN

Grease flow

ULTAGE

・Larger rollers provide theindustry’s highest

load capacity.・Extended maintenance

intervals・Lighter and more

compact design

・Prevent from intrusionof foreign matters

・Prolonged relubricationinterval

・Unique structurereadily accepts lubricant・Pre-lubricated as

standard withlong life grease

Outer ring●With oil inlets and　oil groove●Optimal curvature

Inner ring●No rib required●Optimal curvature

Rollers●Larger rollers●Maximum number　of rollers

Seal●Contact seals on　both sides●Unique lip structure to　maintain the contact　pressure even under　being alignedCage

●Window-type pressed　steel cage●Cage end faces function　as guides


®

1

1 Tapered bore ratio of 1:12.　 2 Smallest allowable dimension for chamfer dimension r.

2

"ULTAGE " (a name created from the combination of "ultimate," signifying refinement,and "stage," signifying NTN's intentionthat this series of products be employed in diverse applications) is the general name for NTN's new generation of bearings thatare noted for their industry-leading performance.

®

®

Basic load ratingsdynamic static staticdynamic

(d= inner bore diameter dimension, mm) × (n= operating speed, min-1)


D1 : With oil inlet/oil groove (D1 specication only)

Up to five timeslonger service life

ULTAGE Series Sealed Spherical Roller Bearings (WA Type) are new innovative standardproducts specifically developed to provide “longer service life”, “higher reliability” and“improved ease of use” required for all industrial machineries.

ULTAGE Series Sealed Spherical Roller Bearings (WA Type) are new innovative standardproducts specifically developed to provide “longer service life”, “higher reliability” and“improved ease of use” required for all industrial machineries.


29

36

42

47

52

57

64

69

74

79

84

91

96

101

112

122

132

144

29

36

43

48

53

58

64

70

76

82

86

93

98

103

115

127

138

148

47

56

65

73

78

83

93

102

111

116

121

131

140

149

168

188

203

216

47

56

65

73

78

83

93

102

110

116

121

131

140

147

165

183

197

211

0.34

0.31

0.31

0.27

0.26

0.24

0.23

0.24

0.24

0.22

0.22

0.22

0.22

0.23

0.24

0.25

0.25

0.25

2.98

3.20

3.29

3.67

3.93

4.23

4.40

4.23

4.15

4.48

4.67

4.67

4.57

4.31

4.23

4.00

4.08

4.00

2.00

2.15

2.21

2.47

2.64

2.84

2.95

2.84

2.79

3.01

3.14

3.14

3.07

2.90

2.84

2.69

2.74

2.69

1.96

2.10

2.16

2.41

2.58

2.78

2.89

2.78

2.73

2.94

3.07

3.07

3.00

2.83

2.78

2.63

2.68

2.63

1.4～2.4

2.0～3.3

2.3～3.9

3.1～5.2

3.4～5.7

3.4～5.6

5.2～7.9

6.6～11.0

8.5～14.2

9.6～16.0

9.9～16.4

12.2～20.3

16.9～28.1

20.4～34.1

28.8～48.0

41.6～69.3

52.8～88.0

62.6～104.4

0.19

0.30

0.50

0.58

0.63

0.70

0.94

1.25

1.72

1.78

1.88

2.32

2.90

3.68

5.40

7.79

9.76

11.9

－

－

0.49

0.57

0.61

0.68

0.91

1.22

1.67

1.73

1.83

2.27

2.83

3.59

5.25

7.58

9.48

11.6

1

1

1.1

1.1

1.1

1.1

1.5

1.5

1.5

1.5

1.5

2

2

2

2.1

2.1

2.1

3

Abutment and fillet dimensions Axial load factor Amount of grease(approx.)

Constant Mass (approx.)

Cylindricalbore

Taperedbore

ged1 D1da min Da max Y1 Y2 Y0rs max

ra

ra

φD

a

φd

a

1 Y1 0.67 Y2

Fa

Fr

X Y X Y

≦eFa

Fr＞e

Equivalent radial loaddynamicPr＝XFr＋YFa

staticPor＝Fr＋YoFa

For values of e, Y1, Y2 and Yo

see the table below.

NTN Standard Grease Allowable Speed

Allowable Misalignment

Bearing Number

Allowable Temperature Range

S ● Brand name: Shell Alvania EP grease No.2 High performance grease for heavy duty containing extreme pressure additives.● Amount of grease: 15～25% of inside free space of the bearing.

● With relubrication : dn≦6×104

● Without relubrication : dn≦8×104

● 0.009 rad (0.5˚)

F

● Bearing temperature : -20～+110"

WA 222 20 EA LLS K D1 C3Internal clearance codeLubrication hole / lubrication groove code

W33: With oil inlet/oil groove (European market specication)

Bore configuration code No code: Cylindrical bore K: Tapered bore

Seal type codeDimension series codeBore diameter code

Contact seal on both sidesType code EA: Window-type presed steel cage

Both a high load capacity and a longer service life are achieved by adopting the internal design of EA type spherical roller bearing which has a significantly increased roller diameter and the maximum number of rollers guided with the window-type pressed steel cage.

2 Adopt the contact type dust-proof seal with minimized volume. type rubber seals. of seals even under aligned conditions.

3 Barings are prelubricated with a long life grease. No cleaning nor greasing are required when being mounted.

4 Adequate greasing into the inside of the bearing is secured with a lubrication groove and holes on the outside diameter of the outer ring.

c

　

　

　

　　　

　

　


　

(d= inner bore diameter dimension, mm) × (n= operating speed, min-1)

D1 : With oil inlet/oil groove (D1 specication only)


1. Because the internal radial clearance of “ULTAGE Series Sealed Spherical Roller Bearings” with tapered bores cannot be measured with a thickness gauge, please monitor clearances by measuring the axial movement of the inner ring as shown in Table 1.

2. During assembly, if misalignment exceeding the allowable misalignment angle of ±0.5˚ is applied to the bearing, rollers may come in direct contact with seals causing seal deformation. Furthermore, if additional force is applied under these conditions, seals may separate from the bearing entirely. Therefore, caution is advised.

3. Please use Lithium mineral grease. In case other types of grease are to be used, please consult NTN.

4. If a shrink fit is to be applied, please do not exceed a bearing temperature of 100˚C. However, these bearing cannot be shrink fit via immersion in a hot oil bath.

Rotational speed min-1

Out

er ri

ng te

mpe

ratu

re ri

se ˚

C

Rot

atio

nal t

orqu

e N・

mm

00.0

20.0

40.0

60.0

80.0

100.0

200 400 600 800 1000 1200 1400 1600Rotational speed min-1

00

50

100

150

200

200 400 600 800 1000 1200 1400 1600

Performance Test Data

Handling Precautions


●Heat Run Test

　[Test conditions]　　Bearing ：WA22218EALLSD1　　Load ：Radial load 294N｛30kgf｝　　Speed ：200～1400min-1

　　Lubrication ：Shell Alvania EP grease No.2 (NTN code 8A)　　Amount of grease ：20% of free space　　Operating time ：Until temperature rise stabilizes

●Noise Test

　[Test conditions]　　Bearing ：WA22218EALLSD1　　Load ：Radial load 980N｛100kgf｝　　Speed ：600, 900, 1200min-1

　　Lubrication ：Shell Alvania EP grease No.2 (NTN code 8A)　　Amount of grease ：20% of free space

●Grease Leakage Test

　[Test conditions]　　Bearing ：WA22218EALLSD1　　Load ：Radial load 1960N｛200kgf｝　　Speed ：1000min-1

　　Lubrication ：Shell Alvania EP grease No.2 (NTN code 8A)　　Amount of grease ：20% of free space　　Operating time ：100 hours

[Test results] [Test results]

[Test results]

Outer ring temperature rise Rotational torque

24

30

40

50

65

80

100

120

30

40

50

65

80

100

120

130

0.010

0.010

0.015

0.025

0.035

0.035

0.050

0.060

0.015

0.015

0.020

0.030

0.040

0.045

0.060

0.070


Axialdisplacement

drive-up

Minimum residualinternal clearance

Reduction inradial internal

clearance

Table 1 Installing sealed tapered bore bearings

mmd

over incl. min max

0.15

0.20

0.30

0.35

0.45

0.60

0.75

0.85

0.20

0.25

0.35

0.40

0.55

0.70

0.85

0.95

min max

0.015

0.020

0.025

0.025

0.030

0.035

0.040

0.050

0.025

0.035

0.040

0.045

0.055

0.065

0.075

0.090

CN C3

0.040

0.050

0.060

0.065

0.080

0.095

0.110

0.130

C4

600

900

1200

Noize level dBA

min-1 50 60 70 80

[Test results]Accumulated total amount

of grease leakage

25h

0.47g

50h

0.58g

100h

0.63g

Rotationalspeed

Sealed Spherical Roller Bearings[WA Type]

CAT. No. 3703/ENote: Markings on the seal are not white in actual bearings.


performance test data sealed spherical roller bearings · · 2016-03-22ultage sealed spherical...

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