| Class Number |
Class Name |
No. of Patents |
| 384/624 |
Bearing safety or self-cleaning means |
109 |
| 384/625 |
Bearing-surface treatment |
186 |
| 384/900 |
Cooling or heating |
30 |
| 384/906 |
Antirotation key |
78 |
| 384/907 |
Bearing material or solid lubricant |
89 |
| 384/905.1 |
Cup-shaped bearing |
21 |
| 384/901 |
Floating bushing |
59 |
| 384/911 |
Including fiber |
37 |
| 384/907.1 |
Jewel, glass, ceramic or carbon |
175 |
| 384/913 |
Metallic compounds |
151 |
| 384/912 |
Metallic |
327 |
| 384/908 |
Nylon or polytetrafluorethylene |
77 |
| 384/909 |
Plastic |
94 |
| 384/902 |
Porous member |
112 |
| 384/910 |
Powders |
25 |
| 384/904 |
Propeller shaft outer bearing |
14 |
| 384/903 |
Retaining ring |
125 |
| 384/905 |
Temperature compensation |
81 |
| 384/7 |
Linear bearing |
44 |
| 384/47 |
Alternating roller; or antifriction bearing for auto seat |
66 |
| 384/18 |
Ball bearing for drawer |
93 |
| 384/49 |
Ball bearing |
226 |
| 384/48 |
Combined ball and roller bearings |
18 |
| 384/25 |
Combined plain and antifriction |
27 |
| 384/15 |
Combined with seal or guard |
168 |
| 384/16 |
Annular |
52 |
| 384/12 |
Fluid bearing |
205 |
| 384/11 |
For crosshead |
9 |
| 384/17 |
For exetension table |
6 |
| 384/24 |
Having relatively movable parts for latera insertion and retention of shaft |
19 |
| 384/13 |
Lubricating |
156 |
| 384/14 |
Bearing for valve stem |
4 |
| 384/20 |
Plain bearing for drawer |
15 |
| 384/22 |
Anchoring or aligning means |
23 |
| 384/23 |
Specified race structure or material |
34 |
| 384/21 |
Stop, detent, or lock |
56 |
| 384/26 |
Plain bearings |
37 |
| 384/41 |
Assembling means |
27 |
| 384/29 |
Cylindrical outer race |
45 |
| 384/30 |
For die set or stamping mill shaft |
25 |
| 384/31 |
For hand-held drill shaft |
2 |
| 384/32 |
For piston rod |
11 |
| 384/27 |
For flush tank |
1 |
| 384/34 |
For seat |
24 |
| 384/36 |
For structural installation |
28 |
| 384/28 |
For valve stem |
5 |
| 384/39 |
Gib |
27 |
| 384/35 |
More than two telescoping members |
9 |
| 384/37 |
Resilient supporting member |
56 |
| 384/38 |
Self-aligning |
50 |
| 384/42 |
Specified pad, liner, wear plate or race structure; bearing material |
217 |
| 384/40 |
With adjustment means |
51 |
| 384/43 |
Recirculating |
215 |
| 384/45 |
No cylindrical race |
562 |
| 384/44 |
Roller |
153 |
| 384/19 |
Roller bearing for drawer |
117 |
| 384/46 |
Roller bearing for extensive cylinder |
5 |
| 384/50 |
Roller bearing |
61 |
| 384/57 |
Adjustment or self-alignment means |
82 |
| 384/59 |
Assembling means |
25 |
| 384/51 |
Cage configuration |
75 |
| 384/52 |
Cylindrical inner or outer track |
13 |
| 384/53 |
Location of plural roller sets; more than two telescoping members |
39 |
| 384/56 |
Nonaxle supported roller structure |
20 |
| 384/55 |
Raceway configuration |
53 |
| 384/54 |
Resilient member |
38 |
| 384/58 |
Roller-on-axle bearing |
87 |
| 384/10 |
Tensioned or resilient race or roller member |
30 |
| 384/8 |
With detection, nonbearing magnetic or hydraulic feature |
33 |
| 384/9 |
With temperature, electrical, or orthogonal feature |
42 |
| 384/627 |
Miscellaneous |
27 |
| 384/2 |
Nonjoint, nonrotating fulcrum bearing |
52 |
| 384/3 |
Knife-edge fulcrum |
3 |
| 384/6 |
Edge down |
0 |
| 384/5 |
Edge up |
4 |
| 384/4 |
Edges up and down |
5 |
| 384/91 |
Rotary bearing |
22 |
| 384/445 |
Antifriction bearing |
29 |
| 384/447 |
Elliptical, eccentric, alternating roller, or mass ball features; compensating for nonthermal deformation; centrifugal preload |
60 |
| 384/446 |
Nonbearing magnetic feature |
98 |
| 384/449 |
Outer race integral with wheel |
32 |
| 384/452 |
Radial bearing with separate thrust bearing; radial ball-thrust roller |
18 |
| 384/453 |
Radial ball-thrust ball |
18 |
| 384/454 |
Radial roller-thrust ball |
25 |
| 384/455 |
Radial roller-thrust roller |
33 |
| 384/456 |
Radial bearing |
7 |
| 384/490 |
Ball bearing |
60 |
| 384/519 |
Adjustment means |
60 |
| 384/537 |
Assembling means |
298 |
| 384/542 |
Bolt |
54 |
| 384/541 |
Radial set screw |
22 |
| 384/539 |
Snap means |
82 |
| 384/540 |
Threaded sleeve |
75 |
| 384/538 |
Wedge means |
82 |
| 384/517 |
Axially biased race |
169 |
| 384/518 |
Coil spring |
55 |
| 384/494 |
Ball and roller bearings |
23 |
| 384/492 |
Ball or race composition or material |
282 |
| 384/491 |
Ball structure |
30 |
| 384/523 |
Cage structure |
96 |
| 384/533 |
Entirely noncircular or nonconforming pocket |
15 |
| 384/528 |
Fully circular aperture for ball |
14 |
| 384/530 |
Plural elements joined to form an aperture |
16 |
| 384/529 |
Two circular apertures per ball |
1 |
| 384/524 |
Including antifriction members |
5 |
| 384/527 |
Material, composition or laminate |
72 |
| 384/526 |
Resilient feature |
55 |
| 384/531 |
U- or c-shaped slot |
52 |
| 384/532 |
Unitary uniform strip |
5 |
| 384/534 |
Unitary member |
3 |
| 384/525 |
Wire cage |
0 |
| 384/520 |
Discrete spacing member |
36 |
| 384/521 |
Ball spacer |
15 |
| 384/522 |
Roller spacer |
5 |
| 384/543 |
Fixed shaft and rotating outer member |
33 |
| 384/544 |
For hub |
213 |
| 384/545 |
For bicycle hub |
94 |
| 384/546 |
Outermost member cylindrical |
22 |
| 384/547 |
Outermost member grooved |
21 |
| 384/512 |
Plural axially spaced balls with integral race |
87 |
| 384/535 |
Resilient support member |
106 |
| 384/536 |
Elastomer or plastic |
164 |
| 384/495 |
Self-aligning |
46 |
| 384/496 |
Ball to larger spherical surface |
8 |
| 384/497 |
Radially outer larger spherical surface |
10 |
| 384/498 |
Conforming spherical surfaces |
30 |
| 384/507 |
Slot for ball insertion |
10 |
| 384/508 |
With means for blocking slot |
15 |
| 384/509 |
Blocking by cage |
0 |
| 384/513 |
Specified bearing race structure |
118 |
| 384/516 |
Ball groove surface detail |
75 |
| 384/515 |
Including radial race flange |
26 |
| 384/514 |
Strictly conical contact surface |
12 |
| 384/510 |
Specified means facilitating assembly or disassembly |
67 |
| 384/511 |
Annular opening for ball insertion |
7 |
| 384/499 |
Split race |
23 |
| 384/501 |
Double split |
18 |
| 384/505 |
One race only split |
23 |
| 384/506 |
Inner race split |
40 |
| 384/504 |
Plural rows balls |
69 |
| 384/502 |
Split ring |
11 |
| 384/503 |
Fractured split |
18 |
| 384/500 |
With race adjustment means |
16 |
| 384/493 |
Temperature compensation |
58 |
| 384/461 |
Concentric |
42 |
| 384/460 |
Disk plow |
9 |
| 384/457 |
For crankshaft |
11 |
| 384/458 |
For pedal crank |
32 |
| 384/462 |
Lubricating |
111 |
| 384/470 |
Cage structure |
106 |
| 384/465 |
Centrifugal feature |
48 |
| 384/467 |
Cooling by lubricant |
19 |
| 384/464 |
Dipping, surface treatment or member versus lubricant density |
12 |
| 384/472 |
Impeller |
36 |
| 384/466 |
Jet, baffle or valve |
26 |
| 384/474 |
Lubrication port |
66 |
| 384/475 |
In race |
65 |
| 384/468 |
Oil mist feature |
19 |
| 384/469 |
Porous or wick structure |
24 |
| 384/473 |
Reservoir, filter or lubrication circuit structure |
104 |
| 384/463 |
Solid lubricant feature |
57 |
| 384/471 |
With pressure or suction means |
39 |
| 384/459 |
Railway car journal |
9 |
| 384/548 |
Roller bearing |
39 |
| 384/584 |
Assembling means |
70 |
| 384/585 |
Race fastening means |
167 |
| 384/563 |
Axially biased race or roller |
81 |
| 384/572 |
Cage structure |
154 |
| 384/580 |
Lip on transverse bar |
47 |
| 384/576 |
Nonmetallic |
62 |
| 384/578 |
Nonunitary |
20 |
| 384/579 |
Bolted, welded or with spring |
18 |
| 384/574 |
Projecting into or through roller |
25 |
| 384/577 |
Split ring or open slot |
37 |
| 384/575 |
Uniform sheet metal |
26 |
| 384/573 |
Wire, filament, segmented or surface treated |
18 |
| 384/551 |
Discrete circumferential or axial spacer |
67 |
| 384/552 |
Spaced by balls |
5 |
| 384/553 |
Spaced by rollers |
5 |
| 384/555 |
Mating grooves and projections |
0 |
| 384/554 |
With associated rings |
4 |
| 384/586 |
Fixed shaft and rotating outer member |
5 |
| 384/589 |
For hub |
62 |
| 384/587 |
Outermost element cylindrical |
12 |
| 384/588 |
Outermost element grooved |
6 |
| 384/549 |
Fixed supporting roller |
79 |
| 384/556 |
Hydraulic axial jacking |
27 |
| 384/559 |
Means facilitating assembly or disassembly |
51 |
| 384/560 |
By cage or race structure |
51 |
| 384/561 |
By groove and ring |
28 |
| 384/562 |
By threaded member |
22 |
| 384/564 |
Race end structure |
85 |
| 384/569 |
Race, liner or sleeve |
174 |
| 384/570 |
Split ring |
16 |
| 384/571 |
Tapered race |
136 |
| 384/581 |
Resilient support member |
70 |
| 384/582 |
Elastomer or plastic |
47 |
| 384/565 |
Roller structure |
93 |
| 384/568 |
Curved roller |
54 |
| 384/566 |
Helical feature |
3 |
| 384/567 |
Hollow |
12 |
| 384/558 |
Self-aligning |
63 |
| 384/557 |
Temperature compensation |
36 |
| 384/550 |
Toothed |
16 |
| 384/583 |
With adjustment means |
64 |
| 384/476 |
With cooling, heating or insulating |
101 |
| 384/477 |
With specified seal |
191 |
| 384/478 |
Centrifugal loading or slinging; fluid seal |
91 |
| 384/488 |
Flange small clearance |
75 |
| 384/480 |
Labyrinth |
103 |
| 384/484 |
Lip seal |
186 |
| 384/486 |
Plural lips |
160 |
| 384/485 |
Radially outward lip |
51 |
| 384/489 |
O-ring or end cap seal |
83 |
| 384/479 |
Pressure establishing or loading |
19 |
| 384/483 |
Radially contained packing with axially acting follower |
16 |
| 384/487 |
Radially opening u-shaped retainer |
10 |
| 384/481 |
Relatively rotatable radially contacting |
35 |
| 384/482 |
Resilient sliding surface material |
128 |
| 384/451 |
Recirculating or nonannular path |
3 |
| 384/448 |
Sensor or inspection features; liquid metal or shipping protection features; bearing member integral with seal |
493 |
| 384/450 |
Skew prevention; formular relationship |
129 |
| 384/590 |
Thrust bearing |
9 |
| 384/609 |
Ball bearing |
40 |
| 384/616 |
Adjustment means |
20 |
| 384/617 |
Assembling means |
48 |
| 384/614 |
Cage structure |
33 |
| 384/613 |
Plural rows balls or tandem thrust |
53 |
| 384/615 |
Race structure |
103 |
| 384/611 |
Resilient feature |
60 |
| 384/612 |
Self-aligning |
34 |
| 384/610 |
Single ball |
48 |
| 384/608 |
Concentric rolling members |
6 |
| 384/604 |
Different size rolling elements; spacers; noncircular array |
9 |
| 384/606 |
Lubricating |
28 |
| 384/594 |
Railway truck center bearing |
4 |
| 384/595 |
Railway truck side bearing |
2 |
| 384/596 |
Ball |
3 |
| 384/597 |
Roller |
2 |
| 384/600 |
Assembling means |
3 |
| 384/601 |
Contaminent elimination; adjustment means |
0 |
| 384/602 |
Adjustment by shim |
1 |
| 384/598 |
Toothed |
0 |
| 384/599 |
With self-adjustment means |
3 |
| 384/618 |
Roller bearing |
31 |
| 384/623 |
Cage structure |
35 |
| 384/621 |
Race and cage structure |
31 |
| 384/622 |
Race structure |
54 |
| 384/620 |
Resilient feature; adjustment or self-alignment means; assembling means |
93 |
| 384/619 |
Roller structure or orientation; plural axially spaced rows or tandem thrust |
46 |
| 384/607 |
Seals |
63 |
| 384/603 |
Spinning spindle |
9 |
| 384/605 |
Temperature compensation |
7 |
| 384/591 |
Vehicle center |
4 |
| 384/592 |
Ball |
9 |
| 384/593 |
Roller |
15 |
| 384/100 |
Fluid bearing |
334 |
| 384/103 |
Flexible member |
75 |
| 384/106 |
Auxiliary resilient support |
88 |
| 384/104 |
Plural ends fixed |
20 |
| 384/105 |
Thrust bearing |
46 |
| 384/107 |
Radial and thrust |
351 |
| 384/113 |
Central member recess |
69 |
| 384/110 |
Conical |
84 |
| 384/112 |
Grooved thrust bearing surface |
139 |
| 384/111 |
Outer recess forming fluid pad |
34 |
| 384/108 |
Spherical |
45 |
| 384/109 |
Gas bearing |
20 |
| 384/114 |
Radial |
185 |
| 384/120 |
Circumferential groove in outer member |
42 |
| 384/116 |
Half-circular or less outer member |
22 |
| 384/118 |
Outer recess forming fluid pad |
75 |
| 384/117 |
Pivoted fluid pad |
94 |
| 384/119 |
Resilient mounting member or seal |
125 |
| 384/115 |
Shaft recess |
87 |
| 384/121 |
Thrust |
128 |
| 384/123 |
Grooved bearing surface |
131 |
| 384/122 |
Pivoted fluid pad |
54 |
| 384/124 |
Resilient mounting member or seal |
91 |
| 384/101 |
With antifriction bearing |
35 |
| 384/102 |
Backup |
27 |
| 384/99 |
Hydraulic or pneumatic bearing support |
263 |
| 384/129 |
Plain bearing |
64 |
| 384/313 |
Cooling by lubricant |
16 |
| 384/314 |
Emergency lubrication |
0 |
| 384/316 |
Fluid path |
17 |
| 384/315 |
Water lubrication |
5 |
| 384/302 |
Distributed weight |
19 |
| 384/303 |
For thrust bearing |
21 |
| 384/305 |
Grooved |
9 |
| 384/306 |
Pivoted pad |
24 |
| 384/308 |
Pad mounting structure |
45 |
| 384/307 |
With lubricating means |
28 |
| 384/304 |
Tandem thrust |
14 |
| 384/309 |
Pivoted pad |
33 |
| 384/311 |
Lubricant supply structure |
23 |
| 384/310 |
Noncircumferential |
9 |
| 384/312 |
Pad mounting structure |
34 |
| 384/157 |
For plow or colter disk |
11 |
| 384/416 |
For rotary member |
28 |
| 384/417 |
Pulley |
8 |
| 384/418 |
Roller |
35 |
| 384/419 |
Elongated |
36 |
| 384/226 |
For vertical shaft |
18 |
| 384/242 |
Base supported table or drum |
1 |
| 384/243 |
Lower end thrust bearing |
13 |
| 384/244 |
For shaped shaft end |
13 |
| 384/246 |
Conical shaft end |
19 |
| 384/245 |
Spherical shaft end |
28 |
| 384/227 |
Spinning spindle |
16 |
| 384/239 |
Bolster type bearing |
8 |
| 384/240 |
Lower end thrust bearing |
3 |
| 384/241 |
With lubricating means |
6 |
| 384/228 |
With thrust and radial bearing |
15 |
| 384/229 |
Adjustable spindle |
7 |
| 384/230 |
Laterally resilient |
11 |
| 384/234 |
Fluid damping |
5 |
| 384/233 |
Helical coil spring |
1 |
| 384/231 |
Resilient sleeve |
6 |
| 384/235 |
Rubber |
3 |
| 384/236 |
At fixed end |
0 |
| 384/232 |
Volute coil spring |
1 |
| 384/238 |
Pivoting spindle |
0 |
| 384/237 |
With interior dead shaft |
1 |
| 384/322 |
Lubricating |
67 |
| 384/396 |
Bolt type shaft |
13 |
| 384/372 |
Fixed shaft |
13 |
| 384/384 |
Clearer and agitator |
2 |
| 384/373 |
Forced feed |
13 |
| 384/380 |
Internal feed |
9 |
| 384/383 |
Capillary |
3 |
| 384/381 |
Internal reservoir |
8 |
| 384/382 |
Capillary |
3 |
| 384/375 |
Shaft-supported reservoir |
6 |
| 384/376 |
At end of shaft |
1 |
| 384/377 |
Specified external feed |
3 |
| 384/379 |
Capillary |
1 |
| 384/378 |
Spiral groove |
8 |
| 384/374 |
Yoke reservoir |
1 |
| 384/397 |
For rotary shaft |
58 |
| 384/415 |
For vertical shaft |
20 |
| 384/398 |
Forced feed |
49 |
| 384/399 |
Lubricant metering structure |
28 |
| 384/403 |
Lower reservoir for horizontal shaft |
8 |
| 384/408 |
Capillary |
9 |
| 384/409 |
With wick biasing means |
2 |
| 384/404 |
Shaft operated elevating means |
15 |
| 384/405 |
Band or chain |
1 |
| 384/406 |
Ring type |
14 |
| 384/407 |
Roller or ball |
1 |
| 384/414 |
Suction or pressure |
3 |
| 384/410 |
With wick retainer |
2 |
| 384/411 |
Differing capillary properties |
3 |
| 384/413 |
Wick structure |
7 |
| 384/412 |
With lubricant impelling means |
7 |
| 384/400 |
Reservoir external to bearing |
12 |
| 384/401 |
Upper reservoir for horizontal shaft |
2 |
| 384/402 |
Capillary |
7 |
| 384/368 |
For thrust bearing |
41 |
| 384/370 |
Capillary |
4 |
| 384/371 |
For bearing at end of shaft |
20 |
| 384/369 |
Forced feed |
22 |
| 384/385 |
Reservoir in rotating member |
7 |
| 384/387 |
Capillary |
4 |
| 384/391 |
Center feed |
4 |
| 384/390 |
End feed |
2 |
| 384/389 |
Feed to shaft end and center |
3 |
| 384/392 |
Including distributing means |
4 |
| 384/393 |
Including inward deflector |
1 |
| 384/394 |
Including rotary blade |
0 |
| 384/386 |
Removable reservoir |
1 |
| 384/395 |
With agitator |
1 |
| 384/388 |
With feed regulator |
3 |
| 384/428 |
Mounting or support |
114 |
| 384/441 |
Annular support |
43 |
| 384/440 |
Bearing surface integral with support |
16 |
| 384/434 |
Block and cap type |
48 |
| 384/429 |
For crankshaft |
56 |
| 384/432 |
Block and cap type |
36 |
| 384/433 |
Engine housing closure |
18 |
| 384/430 |
Connecting rod |
17 |
| 384/431 |
Pedal type crank |
8 |
| 384/435 |
Lock type |
8 |
| 384/436 |
|