B61F1/00	7	Underframes (making railway vehicle underframes by forging or pressing B21K7/12)	B61F1/00	B61F1/00		770
B61F1/02	8	with a single central sill	B61F1/02	B61F1/02		381
B61F1/04	8	of triangulated type	B61F1/04	B61F1/04		41
B61F1/06	8	specially adapted for locomotives or motor-driven railcars	B61F1/06	B61F1/06		289
B61F1/08	8	Details	B61F1/08	B61F1/08		571
B61F1/10	9	End constructions	B61F1/10	B61F1/10		532
B61F1/12	9	Cross bearers	B61F1/12	B61F1/12		226
B61F1/14	9	Attaching or supporting vehicle body-structure	B61F1/14	B61F1/14		409
B61F3/00	7	Types of bogies (B61F5/00 takes precedence)	B61F3/00	B61F3/00		183
B61F3/02	8	with more than one axle	B61F3/02	B61F3/02		173
B61F3/04	9	with driven axles or wheels	B61F3/04	B61F3/04		929
B61F3/06	10	with three or more axles	B61F3/06	B61F3/06		277
B61F3/08	9	without driven axles or wheels	B61F3/08	B61F3/08		527
B61F3/10	10	with three or more axles	B61F3/10	B61F3/10		376
B61F3/12	8	specially modified for carrying adjacent vehicle bodies of articulated trains	B61F3/12	B61F3/12		264
B61F3/125	9	{with more than one axle or wheel set}	B61F3/12	B61F3/12		305
B61F3/14	8	specially modified for reducing air resistance	B61F3/14	B61F3/14		26
B61F3/16	8	with a separate axle for each wheel	B61F3/16	B61F3/16		524
B61F5/00	7	Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves	B61F5/00	B61F5/00		405
B61F5/02	8	Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies	B61F5/02	B61F5/02		536
B61F5/04	9	Bolster supports or mountings (side bearings B61F5/14)	B61F5/04	B61F5/04		809
B61F5/06	10	incorporating metal springs	B61F5/06	B61F5/06		909
B61F5/08	10	incorporating rubber springs	B61F5/08	B61F5/08		325
B61F5/10	10	incorporating fluid springs	B61F5/10	B61F5/10		580
B61F5/12	10	incorporating dampers	B61F5/12	B61F5/12		778
B61F5/122	11	{with friction surfaces}	B61F5/12	B61F5/12		926
B61F5/125	11	{with rubber elements (B61F5/08 takes precedence)}	B61F5/12	B61F5/12		107
B61F5/127	11	{with fluid as a damping medium}	B61F5/12	B61F5/12		116
B61F5/14	9	Side bearings	B61F5/14	B61F5/14		1179
B61F5/142	10	{made of rubber elements, graphite or the like}	B61F5/14	B61F5/14		215
B61F5/144	10	{comprising fluid damping devices (B61F5/146 takes precedence)}	B61F5/14	B61F5/14		158
B61F5/146	10	{of the oil bath type; Lubrication devices for side bearings}	B61F5/14	B61F5/14		8
B61F5/148	10	{between bolsterless bogies and underframes (B61F5/142 - B61F5/146 take precedence)}	B61F5/14	B61F5/14		191
B61F5/16	9	Centre bearings or other swivel connections between underframes and bolsters or bogies	B61F5/16	B61F5/16		808
B61F5/18	10	King-bolts	B61F5/18	B61F5/18		309
B61F5/20	10	with springs allowing transverse movements	B61F5/20	B61F5/20		141
B61F5/22	9	Guiding of the vehicle underframes with respect to the bogies	B61F5/22	B61F5/22		508
B61F5/24	10	Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes	B61F5/24	B61F5/24		1149
B61F5/245	11	{by active damping, i.e. with means to vary the damping characteristics in accordance with track or vehicle induced reactions, especially in high speed mode}	B61F5/24	B61F5/24		299
B61F5/26	8	Mounting or securing axle-boxes in vehicle or bogie underframes	B61F5/26	B61F5/26		367
B61F5/28	9	Axle-boxes integral with, or directly secured to, vehicle or bogie underframes	B61F5/28	B61F5/28		88
B61F5/30	9	Axle-boxes mounted for movement under spring control in vehicle or bogie underframes {(B61F5/36 takes precedence over B61F5/305 - B61F5/34)}	B61F5/30	B61F5/30		367
B61F5/301	10	{incorporating metal springs}	B61F5/30	B61F5/30		304
B61F5/302	11	{Leaf springs}	B61F5/30	B61F5/30		349
B61F5/304	11	{Torsion-bar springs}	B61F5/30	B61F5/30		37
B61F5/305	10	{incorporating rubber springs}	B61F5/30	B61F5/30		622
B61F5/307	10	{incorporating fluid springs}	B61F5/30	B61F5/30		87
B61F5/308	10	{incorporating damping devices}	B61F5/30	B61F5/30		226
B61F5/32	10	Guides, e.g. plates, for axle-boxes	B61F5/32	B61F5/32		927
B61F5/325	11	{The guiding device including swinging arms or the like to ensure the parallelism of the axles}	B61F5/32	B61F5/32		369
B61F5/34	11	Wedge mechanisms for adjusting clearance between underframes and axles	B61F5/34	B61F5/34		134
B61F5/36	10	Arrangements for equalising or adjusting the load on wheels or springs, e.g. yokes	B61F5/36	B61F5/36		465
B61F5/38	8	Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles	B61F5/38	B61F5/38		1114
B61F5/383	9	{Adjustment controlled by non-mechanical devices, e.g. scanning trackside elements}	B61F5/38	B61F5/38		116
B61F5/386	9	{fluid actuated}	B61F5/38	B61F5/38		225
B61F5/40	9	Bogies with side frames mounted for longitudinal relative movements	B61F5/40	B61F5/40		85
B61F5/42	9	Adjustment controlled by buffer or coupling gear	B61F5/42	B61F5/42		132
B61F5/44	9	Adjustment controlled by movements of vehicle body	B61F5/44	B61F5/44		346
B61F5/46	9	Adjustment controlled by a sliding axle under the same vehicle underframe	B61F5/46	B61F5/46		57
B61F5/48	9	Trailing or leading bogies for locomotives or motor- driven railcars (B61F5/40 takes precedence)	B61F5/48	B61F5/48		345
B61F5/50	8	Other details	B61F5/50	B61F5/50		1103
B61F5/52	9	Bogie frames	B61F5/52	B61F5/52		2374
B61F5/523	10	{comprising parts made from fibre-reinforced matrix material}	B61F5/52	B61F5/52		76
B61F5/526	10	{comprising noise reducing devices}	B61F5/52	B61F5/52		38
B61F7/00	7	Rail vehicles equipped for use on tracks of different width	B61F7/00	B61F7/00		565
B61F9/00	7	Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels	B61F9/00	B61F9/00		1221
B61F9/005	8	{by use of non-mechanical means, e.g. acoustic or electromagnetic devices}	B61F9/00	B61F9/00		120
B61F11/00	7	Rail vehicles characterised by rail-engaging elements other than wheels, e.g. balls	B61F11/00	B61F11/00		73
B61F13/00	7	Rail vehicles characterised by wheel arrangements, not otherwise provided for	B61F13/00	B61F13/00		424
B61F15/00	7	Axle-boxes (mounting or securing axle-boxes B61F5/26; lubrication B61F17/00; bearings in general F16C)	B61F15/00	B61F15/00		263
B61F15/02	8	with journal bearings	B61F15/02	B61F15/02		84
B61F15/04	9	for locomotives	B61F15/04	B61F15/04		358
B61F15/06	9	for cars	B61F15/06	B61F15/06		593
B61F15/08	9	the axle being slidable or tiltable in the bearings	B61F15/08	B61F15/08		14
B61F15/10	10	and having springs opposing such movements	B61F15/10	B61F15/10		14
B61F15/12	8	with roller, needle, or ball bearings	B61F15/12	B61F15/12		312
B61F15/14	9	constructed for taking-up axial pressure	B61F15/14	B61F15/14		299
B61F15/16	9	the axle being slidable or tiltable in the bearings	B61F15/16	B61F15/16		149
B61F15/18	10	and having springs opposing such movements	B61F15/18	B61F15/18		155
B61F15/20	8	Details	B61F15/20	B61F15/20		282
B61F15/22	9	Sealing means preventing entrance of dust or leakage of oil	B61F15/22	B61F15/22		871
B61F15/24	10	preventing oil leakage when vehicle is tilted or inverted	B61F15/24	B61F15/24		2
B61F15/26	9	Covers; Sealing thereof	B61F15/26	B61F15/26		565
B61F15/28	9	Axle-boxes modified to ensure electrical conductivity	B61F15/28	B61F15/28		74
B61F17/00	7	Lubrication specially adapted for axle-boxes of rail vehicles (lubrication in general F16N)	B61F17/00	B61F17/00		43
B61F17/02	8	with oil	B61F17/02	B61F17/02		27
B61F17/04	9	Lubrication by stationary devices	B61F17/04	B61F17/04		16
B61F17/06	10	by means of a wick or the like	B61F17/06	B61F17/06		489
B61F17/08	11	Devices for pressing the wick or the like against the rotating axle	B61F17/08	B61F17/08		426
B61F17/10	10	by means of an oil bath	B61F17/10	B61F17/10		127
B61F17/12	10	by gravity	B61F17/12	B61F17/12		114
B61F17/14	9	Rotating lubricating devices	B61F17/14	B61F17/14		20
B61F17/16	10	with rings	B61F17/16	B61F17/16		23
B61F17/18	10	with chains	B61F17/18	B61F17/18		38
B61F17/20	10	with scoops or the like attached to, or coupled with, the axle	B61F17/20	B61F17/20		321
B61F17/22	10	with discs, rollers, or belts engaging the axle	B61F17/22	B61F17/22		336
B61F17/24	9	by built-in lubricating pumps	B61F17/24	B61F17/24		177
B61F17/26	9	by external feeding means, e.g. pneumatic devices	B61F17/26	B61F17/26		171
B61F17/28	9	Applications of oil cleaners not otherwise provided for	B61F17/28	B61F17/28		14
B61F17/30	8	with grease	B61F17/30	B61F17/30		81
B61F17/32	9	by manually-operated lubricators, e.g. screw cups	B61F17/32	B61F17/32		18
B61F17/34	9	by automatic means, e.g. with spring action	B61F17/34	B61F17/34		64
B61F17/36	8	with other, e.g. mixed, lubricating agents	B61F17/36	B61F17/36		7
B61F19/00	7	Wheel guards; Bumpers; Obstruction removers or the like (for vehicles in general B60R19/00)	B61F19/00	B61F19/00		95
B61F19/02	8	Wheel guards	B61F19/02	B61F19/02		163
B61F19/04	8	Bumpers or like collision guards	B61F19/04	B61F19/04		630
B61F19/06	8	Nets, catchers, or the like for catching obstacles or removing them from the track (mailbag catchers B61K1/02)	B61F19/06	B61F19/06		445
B61F19/08	9	of the drop-down type	B61F19/08	B61F19/08		89
B61F19/10	10	automatically operated by engagement with obstacle	B61F19/10	B61F19/10		225
B61F99/00	7	Subject matter not provided for in other groups of this subclass	B61F99/00	B61F99/00		34
