|  | F |
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

|  | F01 - F04 |
Subsection index
MACHINES |
positive displacement |
rotary or oscillating piston |
liquid and elastic fluid or elastic fluid | F01C
liquid only | F04C
reciprocating piston or other |
liquid and elastic fluid or elastic fluid | F01B
liquid only | F04B
non-positive displacement |
liquid and elastic fluid or elastic fluid | F01D
liquid only | F03B
ENGINES |
positive displacement |
rotary or oscillating piston |
liquid and elastic fluid or elastic fluid | F01C
liquid only | F03C
reciprocating piston or other |
liquid and elastic fluid or elastic fluid | F01B
liquid only | F03C
non-positive displacement |
liquid and elastic fluid or elastic fluid | F01D
liquid only | F03B
PUMPS |
positive displacement |
rotary or oscillating piston | F04C
reciprocating piston or other | F04B
non-positive displacement | F04D

ENGINEERING IN GENERAL

|  | F16 |
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

|  | F16C |
SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS [5]

|  | F16C |
2. Note(s) In this subclass, the following expression is used with the meaning indicated: "rotary bodies other than gearing elements" covers any element which rotates so far as its features are affected only by the fact that it rotates. Attention is drawn to the following places:
   Fulltext... Hierarchy... Expanded...A01B 71/00 | Bearings for agricultural machines |
   Fulltext... Hierarchy... Expanded...B21B 31/00 | Adaptation of roll bearings for metal-rolling mills |
   Fulltext... Hierarchy... Expanded...B23Q 1/25 | Bearings for movable or adjustable work or tool supports |
   Fulltext... Hierarchy... Expanded...B61C 17/00 | Connecting-rods, bearings for driving wheels of railway locomotives |
   Fulltext... Hierarchy... Expanded...B61F 15/00 | Axle-boxes for railway vehicles |
   Fulltext... Hierarchy... Expanded...B62K 21/00 | Bearings for steering heads |
   Fulltext... Hierarchy... Expanded...E06B 9/17, Fulltext... Hierarchy... Expanded...E06B 9/24 | Bearings specially adapted for roller shutters or for roller blinds |
   Fulltext... Hierarchy... Expanded...E21B 10/08 | Bearings for drill bits |
   Fulltext... Hierarchy... Expanded...F01C 21/00 | Arrangement of bearings in rotary-piston machines or engines |
   Fulltext... Hierarchy... Expanded...F01D 25/16 | Arrangement of bearings in non-positive displacement machines or engines |
   Fulltext... Hierarchy... Expanded...F02C 7/06 | Arrangement of bearings in gas-turbine plants |
   Fulltext... Hierarchy... Expanded...G01C 19/00 | Bearings for gyroscopes |
   Fulltext... Hierarchy... Expanded...G01D 11/00 | Bearings or suspensions for moving parts of measuring instruments |
   Fulltext... Hierarchy... Expanded...G01G 21/00 | Arrangements of bearings in weighing apparatus |
   Fulltext... Hierarchy... Expanded...G01R 1/02 | Arrangements of bearings in instruments for measuring electric variables |
   Fulltext... Hierarchy... Expanded...G01R 11/00 | Arrangements of bearings for apparatus for measuring time integral of electric power or current |
   Fulltext... Hierarchy... Expanded...G02C 5/22 | Hinges for spectacles |
   Fulltext... Hierarchy... Expanded...G04B 31/00 | Bearings for clockwork |
   Fulltext... Hierarchy... Expanded...H02N 15/00 | Magnetic levitation devices. [5] |

|  | F16C |
Subclass index
FLEXIBLE TRANSMISSIONS, SHAFTS, AXLES, CRANKS, ECCENTRICS | 1/00, 3/00
CROSSHEADS, CONNECTING-RODS | 5/00, 7/00, 9/00
PIVOTS | 11/00
ROLLS, DRUMS, DISCS | 13/00
BEARINGS |
For rotatable parts | 13/00, 17/00 - 27/00
For linearly-movable parts | 29/00
For parts which both rotate and move linearly | 31/00
For crankshafts or connecting- rods | 9/00
Not otherwise provided for | 32/00
Supports; parts or accessories | 27/00, 35/00; 33/00, 41/00
Cooling; relieving load | 37/00; 39/00
MAKING, ASSEMBLING | 33/00, 43/00
CONSTRUCTION OF ROTATABLE BODIES TO RESIST CENTRIFUGAL FORCE | 15/00

P:0 |  | F16C 1/00 |
Flexible shafts (flexible shafts in dental machines for boring or cutting Fulltext... Hierarchy... Expanded...A61C 1/08); Mechanical means for transmitting movement in a flexible sheathing

|  | F16C 1/10 |
· | Means for transmitting linear movement in a flexible sheathing, e.g. "Bowden mechanisms" (guiding-sheathings Fulltext... Hierarchy... Expanded...F16C 1/00)

P:10 |  | F16C 3/00 |
Shafts (flexible shafts Fulltext... Hierarchy... Expanded...F16C 1/00; marine propeller shafts, paddle wheel shafts Fulltext... Hierarchy... Expanded...B63H 23/00); Axles; Cranks; Eccentrics

|  | F16C 3/02 |
· | Shafts; Axles

|  | F16C 3/04 |
· | Crankshafts, eccentric-shafts; Cranks, eccentrics

P:20 |  | F16C 5/00 |
Crossheads; Constructions of connecting-rod heads or piston-rod connections rigid with crossheads (piston-rods, i.e. rods rigidly connected to the piston, Fulltext... Hierarchy... Expanded...F16J 7/00)

P:30 |  | F16C 7/00 |
Connecting-rods or like links pivoted at both ends (coupling-rods for locomotive driving-wheels Fulltext... Hierarchy... Expanded...B61C; inhibiting shift in gearing during unfavourable conditions Fulltext... Hierarchy... Expanded...F16H 61/16); Construction of connecting-rod heads (heads rigid with crossheads Fulltext... Hierarchy... Expanded...F16C 5/00)

P:40 |  | F16C 9/00 |
Bearings for crankshafts or connecting-rods; Attachment of connecting-rods (lubrication of connecting-rods in connection with crankshafts Fulltext... Hierarchy... Expanded...F16C 3/04; connections to crossheads Fulltext... Hierarchy... Expanded...F16C 5/00, to pistons Fulltext... Hierarchy... Expanded...F16J 1/10)

P:50 |  | F16C 11/00 |
Pivots; Pivotal connections (arrangements of steering linkage connections Fulltext... Hierarchy... Expanded...B62D 7/00)

|  | F16C 11/04 |
· | Pivotal connections (hinges for doors, windows or wings Fulltext... Hierarchy... Expanded...E05D; rubber springs with stiff outer sleeve and inner sleeve or pin Fulltext... Hierarchy... Expanded...F16F 1/38)

|  | F16C 11/06 |
· · | Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints (for transmitting rotary motion Fulltext... Hierarchy... Expanded...F16D 3/00; supports for apparatus with ball-joint heads Fulltext... Hierarchy... Expanded...F16M 11/02)

P:70 |  | F16C 13/00 |
Rolls, drums, discs, or the like (guide rollers in feeding webs Fulltext... Hierarchy... Expanded...B65H 27/00; calender rolls, bearings therefor Fulltext... Hierarchy... Expanded...D21G 1/00; pulleys Fulltext... Hierarchy... Expanded...F16H 55/00; rotary drums or rollers for heat-exchange or heat-transfer apparatus Fulltext... Hierarchy... Expanded...F28F 5/00; special adaptations, see the relevant classes); Bearings or mountings therefor

|  | F16C 13/02 |
· | Bearings

P:60 |  | F16C 15/00 |
Construction of rotary bodies to resist centrifugal force (flywheels, correction weights Fulltext... Hierarchy... Expanded...F16F 15/30, Fulltext... Hierarchy... Expanded...F16F 15/00)

|  | F16C 17/00 - F16C 32/00 |
Bearings for rotary parts (Fulltext... Hierarchy... Expanded...F16C 9/00, Fulltext... Hierarchy... Expanded...F16C 13/02 take precedence; allowing for linear movement also Fulltext... Hierarchy... Expanded...F16C 31/00)

P:130 |  | F16C 17/00 |
Sliding-contact bearings for exclusively rotary movement (Fulltext... Hierarchy... Expanded...F16C 32/06 takes precedence; adjustable bearings Fulltext... Hierarchy... Expanded...F16C 23/00, Fulltext... Hierarchy... Expanded...F16C 25/00) [2]

|  | F16C 17/02 |
· | for radial load only

|  | F16C 17/03 |
· · | with tiltably-supported segments, e.g. Michell bearings

|  | F16C 17/04 |
· | for axial load only

P:120 |  | F16C 19/00 |
Bearings with rolling contact, for exclusively rotary movement (adjustable bearings Fulltext... Hierarchy... Expanded...F16C 23/00, Fulltext... Hierarchy... Expanded...F16C 25/00)

|  | F16C 19/02 |
· | with bearing balls essentially of the same size in one or more circular rows

|  | F16C 19/22 |
· | with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings

|  | F16C 19/49 |
· | Bearings with both balls and rollers

P:110 |  | F16C 21/00 |
Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement (Fulltext... Hierarchy... Expanded...F16C 17/00, Fulltext... Hierarchy... Expanded...F16C 19/00take precedence) [2]

P:100 |  | F16C 23/00 |
Bearings for exclusively rotary movement adjustable for aligning or positioning (Fulltext... Hierarchy... Expanded...F16C 27/00 takes precedence)

P:90 |  | F16C 25/00 |
Bearings for exclusively rotary movement adjustable for wear or play (Fulltext... Hierarchy... Expanded...F16C 27/00 takes precedence)

P:80 |  | F16C 27/00 |
Elastic or yielding bearings or bearing supports, for exclusively rotary movement (with sliding surfaces of rubber or synthetic rubber Fulltext... Hierarchy... Expanded...F16C 33/04; shock-damping bearings for watches or clocks Fulltext... Hierarchy... Expanded...G04B 31/00)

P:150 |  | F16C 29/00 |
Bearings for parts moving only linearly (Fulltext... Hierarchy... Expanded...F16C 32/06 takes precedence; incorporated in flexible shafts Fulltext... Hierarchy... Expanded...F16C 1/00) [2]

|  | F16C 29/04 |
· | Ball or roller bearings

|  | F16C 29/06 |
· · | in which the rolling bodies circulate partly without carrying load

P:140 |  | F16C 31/00 |
Bearings for parts which both rotate and move linearly

P:160 |  | F16C 32/00 |
Bearings not otherwise provided for

|  | F16C 32/04 |
· | using magnetic or electric supporting means [2]

|  | F16C 32/06 |
· | with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings [2]

|  | F16C 33/00 - F16C 43/00 |
Details or accessories of bearings

P:210 |  | F16C 33/00 |
Parts of bearings; Special methods for making bearings or parts thereof (metal-working or like operations, see the relevant classes)

|  | F16C 33/02 |
· | Parts of sliding-contact bearings

|  | F16C 33/04 |
· · | Brasses; Bushes; Linings

|  | F16C 33/30 |
· | Parts of ball or roller bearings

|  | F16C 33/38 |
· · | Ball cages

|  | F16C 33/46 |
· · | Cages for rollers or needles

|  | F16C 33/58 |
· · | Raceways; Race rings

|  | F16C 33/62 |
· · · | Selection of substances

|  | F16C 33/66 |
· · | Special parts or details in view of lubrication

|  | F16C 33/72 |
· | Sealings (sealings in general Fulltext... Hierarchy... Expanded...F16J)

|  | F16C 33/76 |
· · | of ball or roller bearings

P:200 |  | F16C 35/00 |
Rigid support of bearing units; Housings, e.g. caps, covers (Fulltext... Hierarchy... Expanded...F16C 23/00 takes precedence; elastic or yielding supports Fulltext... Hierarchy... Expanded...F16C 27/00)

|  | F16C 35/04 |
· | in the case of ball or roller bearings

P:180 |  | F16C 37/00 |
Cooling of bearings

P:170 |  | F16C 39/00 |
Relieving load on bearings

P:220 |  | F16C 41/00 |
Other accessories for bearings

P:190 |  | F16C 43/00 |
Assembling bearings