external retaining rings
Method of using snap rings to retain bearings on shafts. Snap rings are used in place of shoulder or lock nuts.

Basic Bearing
Number

 S Shaft Diameter
or Bearing Bore

Part
No.

 Groove Dimensions

 Ring Dimensions

 Free Gap

 Diameter

 Width
A

Depth
B Nom.

 Free Diameter

 Width
W

 Thick
T±.002

 Min.

 Max.

 Dec.

 MM equiv.

 C

 Tol.

 D

 Tol.

 201

 301

 .4724

 12.00

584

 .436

 ±.002

 .046
+.003
-.000

.018

 .421

+.000
-.020

 .062
±.003

 .042

 .062

 .187

 202

 302

 

 .5906

 15.00

 594

 .550

.053
+.004
-.000

.020

 .538

+.000
-.025

.078
±.003

 .047

.078

 .218

 203

 303

 403

 .6693

 17.00

 614

 .629

.616

 204

 304

 404

 .7874

 20.00

 639R

 .731

.068
+.004
-.000

.028

 .710

 .093
±.003

 .062

 205

 305

 405

 .9843

 25.00

 698R

 .924

.030

 .910

+.000
-.031

 .109
±.003

.156

 .312

 206

 306

 406

 1.1811

 30.00

 740R

 1.111

 ±.004

 .085
+.004
-.000

.035

 1.093

 .125
±.005

 .075

 207

 307

 407

 1.3780

 35.00

 823

 1.288

.108
+.005
-.000

.045

 1.265

.156
±.005

 .093

.250

 .406

 208

 308

 408

 1.5748

 40.00

 916R

 1.465

.055

 1.452

 209

 309

 409

 1.7717

 45.00

 974R

 1.648

.062

 1.625

+.000
-.046

.188
±.005

.250

 .468

 210

 310

 410

 1.9685

 50.00

 1065R

 1.844

 ±.006

 1.820

 211

 311

 411

 2.1654

 55.00

 1129R

 2.015

 .120
+.005
-.000

.075

 1.995

 .218
±.005

 .109

 212

 312

 412

 2.3622

 60.00

 1185

 2.212

 2.187

 213

 313

 413

 2.5591

 65.00

 1258

 2.389

 .139
+.006
-.000

.085

 2.359

 .250
±.005

 .125

 214

 314

 414

 2.7559

 70.00

 1308R

 2.586

 2.556

 +.000
-.062

 .250

 .500

 215

 315

 415

 2.9528

 75.00

 1378

 2.783

 2.750

 216

 316

 416

 3.1496

 80.00

 1407R

 2.979

 2.946

 217

 317

 417

 3.3465

 85.00

 1468R

 3.176

 3.139

 218

 318

 418

 3.5433

 90.00

 1517R

 3.343

 .100

 3.308

 +.000
-.078

 .312
±.005

 .312

 .625

 219

 319

 419

 3.7402

 95.00

 1551R

 3.540

 3.500

 220

 320

 420

 3.9370

 100.00

 1572R

 3.737

 .174
+.008
-.000

 3.697

.156

 221

 321

 421

 4.1339

 105.00

 2919R

 3.934

 3.888

 +.000
-.093

 .312

 .687

 222

 322

 422

 4.3307

 110.00

 1625R

 4.131

 4.080

 
 back to Constant Section Rings index
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 Prospect Fastener Corporation
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A4092 retaining rings ISO9001:2000



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