Cylindrical Roller Bearing

Needle roller bearings are distinguished for their compact designs,and this feature makes them particularly suitable for using in machine parts where the radial space is limited.





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Long cylindrical roller bearings (needle roller bearings) are assembled with many slender cylinders (needle rollers) with a length of 3-10 times the diameter, making them compact in structure and having a relatively large radial load capacity.

 

Long cylindrical roller bearings (needle roller bearings) include: stamped outer ring needle roller bearings with special alloy steel plates as the outer ring, solid outer ring needle roller bearings with cutting rings, and bearings without retaining rings, needle roller components, and roller needle structures. Moreover, there are various structures with inner rings, without inner rings, or with and without cages.

 

Bearings with cages mainly use steel plate stamped cages.

 

Needle roller bearings are distinguished for their compact designs,and this feature makes them particularly suitable for using in machine parts where the radial space is limited.The room between housing are shaft should be restricted to a close limit.Needle roller bearings with one ring or needle rollers and cage assemblise only can also be produced,on condition that the accuracy and the surface finish of the working surface of the matching parts be indentical with that of beairng rings.

 

Bearing No.

Dimension (mm )

Basic load rating(KN)

Limiting speeds

Dimension

Mass(kg)

New

Old

d

D

B

rmir

rlmir

Fw

Ew

Cr

Cor

Grease

Oil

d2

D2

 

NA 5917

85

120

46

1.1

1.1

100

 

140

315

 

4500

 

108

1.66

NAL 4034

4104134

170

260

90

2.1

 

192

 

787

1400

1100

1600

 

230

15.9

NAL 4036

4104136

180

280

100

 

 

207

 

862

1610

940

1400

 

250

21.5

NAL 4036 M

4104136H

180

280

100

2.1

2.1

205

 

834

1460

940

1400

 

250.4

24.3

NAL 4038

4104138

190

290

100

 

 

217

 

899

1670

900

1300

 

258

22.6

Y 604708 K1

604708K1

40

65

56.5

 

 

40.1

 

131

211

4500

6300

 

 

0.826

NAUL 612 WBF1

954712

60

120

58

 

 

 

106

248

329

2900

4400

79.2

 

3.32

RNAOL 4921 M

124721

105

146

66

 

 

 

146

293

521

1900

2900

 

 

3.62

NNAL 6034 X2/W33X

154734

170

260

192

2.1

2.1

192

 

1430

3020

 

 

 

230

34.5

NNAL 6034 X2M/C4W33X

4G154734H

170

260

192

2.1

2.1

192

 

1430

3020

 

 

 

230

36.6

NNAL 6/177.8Q4/W33XYA2

254735Q

177.8

244.475

162.925

3

3

198

 

889

2350

 

 

 

222

23.6

NNAL 6036 X2-1/W33X

154736

180

280

219

 

 

207

 

1430

3540

 

 

 

245

46.8

NNAL 6/222.25-1 Q4/C9W33XYA2

154744QU

222.25

298.45

225.425

2.1

2.1

242.35

 

1580

4640

 

 

 

271.2

45.2

Y 294817 Q

294817Q

100.5

150

133.45

 

2

 

100.5

573

1060

 

 

 

125.3

7.91

NNAL 6036 X2-2M/W33X

154836

180

280

219

2.1

2.1

207

 

1340

3280

 

 

 

250

49.6

Y 4644838 HK

4644838HK

210

240

50

 

1.5

 

210

223

631

1300

1900

 

215.5

3.28

NA 4844 A

4524844

220

270

50

1.5

1.5

240

 

177

684

1100

1700

 

 

6.88

NA 4844 A/YA4

4524844K

220

270

50

1.5

1.5

242

 

177

684

 

 

 

 

6.88

NNAL 6/101.6 Q4/W33XYA2

354920Q

101.6

171.45

133.35

2

2

127

 

538

1400

 

 

 

146.6

13.5

NNAL 6/139.7 Q4/C9W33YA2

154928QU

139.7

203.2

146.558

2

2

155.5

 

845

1950

 

 

 

181.1

15.8

NNAL 6/146.05 Q4/C9W33YA2

154920QU

146.05

209.55

162.306

2

2

161.8

 

921

2210

 

 

 

187.4

18.3

NNAL 6/158.75 Q4/W33X

154932QU

158.75

231.775

161.925

2.1

2.1

177.3

 

1020

2390

 

 

 

205.5

23.5

NNAL 6/158.75 Q4/C9W33X

154932QU1

158.75

231.775

161.925

2.1

2.1

177.3

 

1020

2390

 

 

 

205.5

23.5

NNAL 635 Q4/W33X

354935Q

175

245

160

197

 

876

2540

1000

1500

 

222.6

24.9

NNAL 6/177.8-2 Q4/W33XYA2

254936Q

177.8

257.175

196.85

2

2

199.5

 

1230

3030

 

 

 

229.9

34.2

NNAL 6/177.8-2 Q4/C9W33XYA2

254936QU

177.8

257.175

196.85

2

2

199.5

 

1230

3030

 

 

 

229.9

34.2

NNAL 6/187.325 Q4/C9W33YA2

154937QU

187.325

266.7

217.475

2.1

2.1

207.512

 

1560

4110

 

 

 

238.7

42.2

NNAL 6/206.375 Q4/W33XYA2

254941QU

206.375

285.75

222.25

5

5

230.5

 

1450

2200

 

 

 

258

44.9

NNAL 6/206.375 Q4/C9W33XYA2

254941QU1

206.375

285.75

222.25

5

5

230.5

 

1450

2200

 

 

 

258

44.9

NNAL 6/209.55 Q4/W33X

154942

209.55

282.575

236.525

3.5

230.188

 

1490

4630

840

1200

 

255

43.2

NNAL 6/209.55 Q4/C9W33X

154942QU

209.55

282.575

236.525

3.5

3.5

230.188

 

1490

4630

840

1200

 

255

43.7

NNAL 6/209.55 Q4/W33X

154942Q

209.55

282.575

236.525

3.5

3.5

230.188

 

1490

4630

840

1200

 

255

43.7

NNAL 6/209.55/HCW33X

154942S

209.55

282.575

236.525

3.5

3.5

230.188

 

1490

4630

840

1200

 

255

43.2

NNAL 6/222.25 Q4/C9W33XYA2

154944QU

222.25

298.45

228.6

2.1

2.1

242.35

 

1600

4720

700

1100

 

271.2

45.9

NNAL 6/228.6/C3W33X

3G154946

228.6

317.5

241.3

3

3

252.5

 

1910

5370

570

900

 

286.1

54.0

NAL 28/1130 X1V

749/1130

1130

1310

140

6

6

1191

 

3270

14500

 

 

 

1237

324

Read More About double row cylindrical roller bearings
Read More About cylindrical roller thrust bearing

 

 

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