gavinchu@sunrises-group.com +852-95143941

Bearing 7228 CD/P4A

7228CD/P4A bearings is mainly used in machine tool spindles,engineering machinery, automobiles, metallurgy, mining, petroleum, machinery, electric power, railway and other industries.

Description

super-precision bearings 7228 CD/P4A

Angular contact ball bearings 7228 CD/P4A

140mm*250mm*42mm bearings

7228CD/P4A bearings is mainly used in machine tool spindles,engineering machinery, automobiles, metallurgy, mining, petroleum, machinery, electric power, railway and other industries.

Technical data of bearings 7228 CD/P4A

super precision bearing number

7228 CD/P4A

d


140

mm

D


250

mm

B


42

mm

d1


176.8

mm

d2


176.8

mm

D1


213.2

mm

r1,2

min.

3

mm

r3,4

min.

1.5

mm

a


47.3

mm

da

min.

154

mm

db

min.

154

mm

Da

max.

236

mm

Db

max.

241

mm

ra

max.

2.5

mm

rb

max.

1.5

mm

dn


184.8

mm

Basic dynamic load rating

C

221

kN

Basic static load rating

C0

240

kN

Fatigue load limit

Pu

7.35

kN

Attainable speed for grease lubrication


5600

r/min

Attainable speed for oil-air lubrication


8500

r/min

Contact angle

α

15

°

Ball diameter

Dw

30.162

mm

Number of balls

z

18


Precison rating


P4/ABEC-7


Working teperature


-40℃-120℃


Mass




Mass bearing


8.14

kg


Extended super precision angular contact ball bearngs in Sun Rises Group Lmited.

Designation

Principal dimensions

Basic load ratings

Fatigue load limit

Attainable speeds




dynamic

static


Grease lubrication

Oil-air lubrication

d

D

B

C

C0

Pu



mm

kN

kN

r/min

71972 CDMA/P4A

360

480

56

397

710

14.6

2400

3600

71972 ACDMA/P4A

360

480

56

371

670

13.7

2000

3200

71972 ACDMA/HCP4A

360

480

56

371

670

10

2400

3800

71972 CDMA/HCP4A

360

480

56

397

710

10.6

2800

4300

71968 CDMA/P4A

340

460

56

390

670

14.3

2400

3800

71968 ACDMA/P4A

340

460

56

364

640

13.4

2200

3400

71968 ACDMA/HCP4A

340

460

56

364

640

9.8

2600

4000

71968 CDMA/HCP4A

340

460

56

390

670

10.4

3000

4500

71964 CDMA/HCP4A

320

440

56

377

620

9.8

3000

4800

71964 CDMA/P4A

320

440

56

377

620

13.7

2600

4000

71964 ACDMA/P4A

320

440

56

351

585

12.9

2400

3600

71964 ACDMA/HCP4A

320

440

56

351

585

9.3

2800

4300

71960 ACDMA/P4A

300

420

56

351

560

12.7

2400

3800

71960 ACDMA/HCP4A

300

420

56

351

560

9.15

3000

4500

71960 CDMA/HCP4A

300

420

56

371

600

9.65

3200

5000

71960 CDMA/P4A

300

420

56

371

600

13.4

2800

4300

71956 ACD/HCP4A

280

380

46

276

430

7.35

3200

5000

71956 CD/P4A

280

380

46

291

455

10.6

3000

4500

71956 ACD/P4A

280

380

46

276

430

10

2600

4000

71956 CD/HCP4A

280

380

46

291

455

7.8

3600

5600

7052 ACD/P4A

260

400

65

397

600

14

3000

4500

7052 CD/P4A

260

400

65

416

630

14.6

3400

5300

71952 CD/P4AL

260

360

46

281

425

10.2

3600

5300

71952 ACD/HCP4A

260

360

46

265

400

6.95

3800

6000

71952 ACD/P4A

260

360

46

265

400

9.65

3200

4800

71952 ACD/HCP4AL

260

360

46

265

400

6.95

3800

6000

71952 CD/P4A

260

360

46

281

425

10.2

3600

5300

71952 CD/HCP4A

260

360

46

281

425

7.35

4300

6300

71952 ACD/P4AL

260

360

46

265

400

9.65

3200

4800

71952 CD/HCP4AL

260

360

46

281

425

7.35

4300

6300

Hot Tags: bearing 7228 CD/P4A, suppliers, distributors, agent, for sale

Send Inquiry