# US 10,370,009 B2 · Wheel set for a rail vehicle

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- Number: US 10,370,009 B2
- Document ID: US10370009B2
- Status: Granted
- Kind: B2
- Application number: 15/112,203
- Filed: 2015-01-09
- Published: 2016-11-17
- Granted: 2019-08-06
- Earliest claimed: 2014-01-17
- Assignees: Siemens Mobility GmbH
- Applicants: Siemens Mobility GmbH
- Inventors: Manuel Kroiss; Gerd Loeffler
- Web page: https://patentgrep.com/patent/US10370009B2

## CPC

- B61F 5/26: Mounting or securing axle-boxes in vehicle or bogie underframes
- B60B 37/10: the wheels being individually rotatable around the axles
- B61F 5/30: Axle-boxes mounted for movement under spring control in vehicle or bogie underframes {(B61F5/36 takes precedence over B61F5/305 - B61F5/34)}
- F16C 35/042: {Housings for rolling element bearings for rotary movement}
- F16C 35/045: {with a radial flange to mount the housing}
- B23B 5/32: for reconditioning wheel sets without removing same from the vehicle; Underfloor wheel lathes for railway vehicles
- B60B 17/00: Wheels characterised by rail-engaging elements ({wheel-axle combinations B60B37/00;} of model railways A63H19/22)
- B61F: RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES (for vehicles in general B60; axles or wheels B60B; vehicle tyres B60C)
- B60B: VEHICLE WHEELS (making wheels or wheel parts by rolling B21H1/00, by forging, hammering or pressing B21K1/28); CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- B23B: TURNING; BORING (arrangements for copying or controlling B23Q)

## Abstract

A wheel set for a rail vehicle, in particular for a locomotive, includes two track wheels which are connected by a wheel axle mounted in two wheel set bearings. Each wheel set bearing includes a cast bearing housing, which is closed by an outer housing cover and an inner pressure ring. In addition, the bearing housing has a clamping position for engaging a tensioning device of a machine tool for machining the wheel set. Since the clamping position is integrated in the pressure ring, the clamping position can be easily cut to size and the bearing housing can be produced in a weight-optimized and cost-effective way in comparison to known bearing housings.

## Claims

### Claim 1

A wheel set for a rail vehicle or a locomotive, the wheel set comprising:
two wheel set bearings each having a cast bearing housing;
two track wheels;
a wheel axle interconnecting said two track wheels and being mounted in said two wheel set bearings;
each bearing housing having a respective outer side with an outer housing cover and a respective inner side opposite said respective outer with respect to a longitudinal direction of said wheel axle, said respective inner side having an inner pressure ring;
each said inner pressure ring having a respective outside diameter;
fasteners disposed about an outer periphery of each said inner pressure ring within said respective outside diameter for fastening each said inner pressure ring to said respective inner side; and
each said inner pressure ring having a clamping structure integrated therein for engaging a tensioning device of a machine tool for machining the wheel set, said clamping structure being at least one clamping strap projection projecting radially outward from said respective outside diameter.

### Claim 2 (depends on 1)

The wheel set according to claim 1, wherein said clamping structure is formed by two diametrically oppositely disposed clamping straps radially projecting on an outer periphery of said pressure ring.

### Claim 3 (depends on 1)

The wheel set according to claim 1, wherein said clamping strap has at least one through-hole for engaging the tensioning device.

### Claim 4 (depends on 1)

The wheel set according to claim 1, wherein said clamping strap extends radially downward from said inner pressure ring.

### Claim 5 (depends on 4)

The wheel set according to claim 4, wherein said clamping strap is constructed for being engaged by clamping arms of a lathe.