GB2117459A - Wheel hub and axle spindle assemblies - Google Patents
Wheel hub and axle spindle assemblies Download PDFInfo
- Publication number
- GB2117459A GB2117459A GB08307752A GB8307752A GB2117459A GB 2117459 A GB2117459 A GB 2117459A GB 08307752 A GB08307752 A GB 08307752A GB 8307752 A GB8307752 A GB 8307752A GB 2117459 A GB2117459 A GB 2117459A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hub
- axle spindle
- face
- wheel hub
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
- F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
- F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/001—Hubs with roller-bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/02—Wheel hubs or castors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
A wheel hub 12 is bored from one face 15 to receive the outer race 16 of a taper roller bearing assembly 17 having two inner races 18, 19 located on one axle spindle 1 extending through the hub. The outer race is located by a shoulder 14 at the bore's inner end and is retained against axial movement by an abutment, conveniently a hub cap 23, at the face 15 of the hub. The inner races 18, 19 are axially located by a shoulder 6 on the axle spindle 1 and a bearing spacer 8 against which one of the inner races abuts, and a flanged nut 22 on a screw-threaded end 4 of the axle spindle engaging with the second inner race and adjustable to apply the required torque loading to the inner races for use. A brake drum 29 is secured to the hub at face 15. <IMAGE>
Description
SPECIFICATION
Wheel hub and axle spindle assemblies
This invention relates to a wheel hub and axle spindle assembly and is of particular, but not exclusive, application to trailers and semi-trailers.
Hitherto it has been the practice to provide a wheel hub and axle spindle assembly with taper roller bearings in which the fit or end-float of the bearings is adjusted by a nut on the axle spindle, often with a vernier type adjustment. If the end-float is not set correctly the life of the bearings is adversely affected. This is accentuated by other problems such as rubbing contact between a bearing inner race and the adjusting nut whereby wear of the nut face occurs, so increasing the bearing end-float and leading to early failure of the bearing.
In the practice of this invention there is used a taper roller bearing assembly comprising two taper roller bearings, which may have separate outer races or a common outer race with tracks for each set of rollers, and separate inner races. Such a bearing assembly is hereinafter referred to as "a taper roller bearing assembly of the type set forth". The separate outer races, if provided, are hereinafter jointly referred to as "the outer race".
The present invention consists in a wheel hub and axle spindle assembly comprising a wheel hub having a central portion bored from one face thereof to receive with an interference fit the outer race of a taper roller bearing assembly of the type set forth, first locating means in the bore at its inner end to locate the outer race in the bore, abutment means at or adjacent said one face of the hub to resist relative axial movement of the hub and outer race, an axle spindle extending through the hub and having thereon, in succession and proceeding towards its outer end, second locating means to locate the inner races of the bearing assembly, a first one of the inner races abutting against the second locating means, the second inner race and securing means adjustable on the axle spindle engaging an outer end of the second inner race so as to ensure correct adjustment of the taper roller bearing assembly.
Preferably the first locating means comprises a shoulder integral with the hub and machined at the inner end of the bore.
Preferably the first locating means comprises a shoulder integral with the hub and machined at the inner end of the bore.
Preferably the second locating means comprises a shoulder machined on the axle spindle and a bearing spacer adapted to engage said shoulder.
The securing means may comprise a flanged nut on a screw-threaded outer end of the axle spindle.
The nut may incorporate thread locking means. The outer diameter of the flange of the nut may be greater than the inside diameter of the outer race of the bearing assembly to assist retention of the hub and wheel secured thereto in the event of a bearing failure.
Sealing means may be provided at the inner and outer ends of the hub for retention of lubricant. The sealing means at the outer end may comprise a hub cap and this may provide the abutment means for resisting relative lateral movement of the hub and outer race.
The hub is preferably provided with a locating spigot, which may be continuous or discontinuous, for location of a wheel thereon.
The hub may be provided with a spigot, which may be continuous or discontinuous, for location of a radial flange of a brake drum. Such a spigot is preferably provided on the outer face of the hub to enable the brake drum of a brake mounted on the axle spindle adjacent the other face of the hub, to be removed without removing the hub from the axle spindle for access to the brake. The spigot may be stepped whereby it locates both the brake drum and the wheel.
An embodiment of the invention will now be described by way of example with reference to the accompanying drawing which is a half section through a wheel hub and axle spindle assembly in accordance with the invention.
As shown in the drawing, an axle spindle 1 has stepped first and second machined cylindrical surfaces 2 and 3 respectively and a reduced diameter, externally screw-threaded end 4. An inner end of the first surface 2 terminates in a generously radiused portion 5 which runs into a machined shoulder 6. A shoulder 7 is machined at the junction of the screw-threaded end 4 and the second surface 3.
A bearing spacer 8 in the form of a ring is slidably received on the first surface 2. At its inner diameter the bearing spacer 8 is chamfered at each end so as to clear the radiused portion 5 and so that it cannot be fitted the wrong way round. The bearing spacer 8 abuts against the shoulder 6. An outer cylindrical surface of the bearing spacer 8 provides a bearing surface for the inner periphery of a proprietary seal assembly 9 which is pressed into and located in a machined recess 11 at the inner end of a hub 12.
The hub 12 has a central through-openin in which a bore 13 is machined from an outer face 14 of the hub 12 and terminates in a machined shoulder 15.
The outer face 15 of the hub is also machined. It is an important feature of the present invention that these machining operations are all readily carried out from the one end whereby the depth of the bore 13 may be closely controlled to receive a common outer race 16 of a proprietary taper roller bearing assembly 17.
Inner races 18, 19 of the taper roller bearing assembly 17 are slidably received on the second surface 3 of the axle spindle 1, the one inner race 18 abutting against the bearing spacer 8. Sets of rollers 20, 21 roll on the inner races 18, 19 respectively and the common outer race 16.
The taper roller bearing assembly 17 is fitted to the hub 12 by pressing the outer race 16 into the bore 13, in which it has an interference fit, until the race engages the shoulder 15. The oil seal 9 is pressed into the recess 11. The bearing spacer 8 is fitted to the axle spindle to abut against the shoulder 6. The hub is then offered up to the axle spindle so that the seal 9 takes up position on the bearing spacer 8 and the inner races 18, 19 slide on to the second surface 3. A flanged lock nut 22 is fitted to the screwthreaded end 4 of the axle spindle, screwed up and torque-loaded to a suitable value to provide correct adjustment of the taper roller bearing assembly 17.
A hub cap 23 and gasket (not shown) are fitted to the hub 12 and secured by bolts 24. The joint face of the hub cap 23 has a smaller inside diameter than the bore 13 so that the joint face overlaps the outer end of the outer race 16 and serves as an abutment to resist relative axial movement of the hub and outer race. Alternatively the bore 13 may be extended and incorporate a groove in which a snap ring is fitted adjacent the outer end of the outer race 16.
The hub cap 23 has a filler hole 25, closed by a screw 26, for addition of oil for lubrication of the bearing assembly and seal 9 and a window 27 for viewing the oil level. On its outerface the hub 12 has a stepped spigot 28 which locates a brake drum 29 and a wheel 30. The brake drum 29 and wheel 30 are secured to the hub by bolts 31 in holes 32 and nuts 33.
In this embodiment of the invention the proprietory taper roller bearing assembly 17 used is fitted as an assembled unit. The inner races 18, 19 are clamped by torque-loading the flanged lock nut 22 to a value recommended by the bearing manufacturer.
At this torque loading the bearing assembly has the correct designed end-float. the position of the shouider 7 is controlled to ensure the recommended torque loading is achieved whilst clearance still exists between the nut 22 and the shoulder 7. This latter consideration will also apply in the case where a different bearing assembly is used which is designed to have a small extent of end-float of an inner race on the spindle when correctly adjusted.
The usual procedure in this case is to tighten the nut to a certain torque loading and then back it off a small amount to provide the end-float prescribed by the bearing manufacturer. The nut is then locked in this adjusted position, for example by a lock nut.
Alternatively, if it is desired to ensure correct adjustment of the taper roller bearing assembly by dimensional control of the axle spindle, this could be achieved by close control of the distance between the shoulders 6,7 and the width of the bearing spacer 8 so that correct adjustment is given when the flanged nut 22 abuts against the shoulder 7.
Provision may be made for retaining the brake drum on the hub for transit, for example during shipment of the hub and axle assembly to a trailer manufacturer. Such provision may comprise a hole in the radial flange of the brake drum, a registering screw-threaded hole in the hub and a screw to secure the brake drum to the hub.
The hub and axle spindle assembly described provides an assembly which is lightweight, easily assembled with a minimum number of parts and ensures correct bearing adjustment which is maintained over a long period. The externally mounted brake drum allows access to the brakes for servicing without disturbing the hub and hence without disturbing the bearing adjustment. This provides an assembly which requires minimum maintenance and a long life between overhauls.
Claims (11)
1. A wheel hub and axle spindle assembly comprising a wheel hub having a central portion bored from one end face thereof to receive with an interference fit the outer race of a taper roller bearing assembly of the type set forth, first locating means in the bore at its inner end to locate the outer race in the bore, abutment means at or adjacent said one face of the hub to resist relative axial movement of the hub and outer race, an axle spindle extending through the hub and having thereon, in succession and proceeding towards its outer end, second locating means to locate the inner races of the bearing assembly, a first one of the inner races abutting against the second locating means, the second inner race and securing means adjustable on the axle spindle engaging an outer end of the second inner race so as to ensure correct adjustment of the taper roller bearing assembly.
2. A wheel hub and axle spindle assembly as claimed in Claim 1 wherein a drum brake is mounted on the spindle adjacent another face of the hub opposite to said one face, and the hub is provided on said one face with means for location and securing thereon of a radial flange of the drum of the brake whereby access to the brake is facilitated without removal of the hub from the assembly.
3. A wheel hub and axle spindle assembly as claimed in Claim 2 wherein the hub has means on said one face for location and securing of a wheel disc adjcent said radial flange of the brake drum, and common means are provided for securing the brake drum and wheel disc togetherto the hub.
4. A wheel hub and axle spindle assembly as claimed in any preceding claim wherein the first locating means comprises a shoulder in the central portion of the hub at the inner end of the bore.
5. A wheel hub and axle spindle assembly as claimed in any preceding claim wherein the second locating means comprises a shoulder on the axle spindle and a spacer around the spindle engaging said shoulder.
6. A wheel hub and axle spindle assembly as claimed in any preceding claim wherein the abutment means at or adjacent said one face of the hub comprises a hub cap secured to the hub over the bore and the end of the axle spindle.
7. A wheel hub and axle spindle assembly as claimed in any preceding claim wherein the central portion of the hub has a bore which extends inwardly from another, or the other, face of the hub opposite to said one face and which accommodates a lubricant-retaining seal co-acting with a cylindrical surface of, or mounted on, the axle spindle.
8. A wheel hub and axle spindle assembly as claimed in Claim 7 as dependent from Claim 5 wherein the cylindrical surface is a cylindrical surface of the spacer.
9. A wheel hub and axle spindle assembly as claimed in any preceding claim wherein the securing means comprises a flanged nut screw-threadedly engaged on the end of the axle spindle and torqueloaded against the second inner race whereby the bearing assembly is set and maintained in correct adjustment.
10. A wheel hub and axle spindle assembly as claimed in Claim 9 wherein the outside diameter of the flange of the nut is greater than the inside diameter of the outer race of the bearing assembly.
11. A wheel hub and axle spindle assembly substantially as described herein with reference to the accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08307752A GB2117459A (en) | 1982-03-26 | 1983-03-21 | Wheel hub and axle spindle assemblies |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8208905 | 1982-03-26 | ||
| GB8211042 | 1982-04-16 | ||
| GB08307752A GB2117459A (en) | 1982-03-26 | 1983-03-21 | Wheel hub and axle spindle assemblies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8307752D0 GB8307752D0 (en) | 1983-04-27 |
| GB2117459A true GB2117459A (en) | 1983-10-12 |
Family
ID=27261533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08307752A Withdrawn GB2117459A (en) | 1982-03-26 | 1983-03-21 | Wheel hub and axle spindle assemblies |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2117459A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0475088A1 (en) * | 1990-09-14 | 1992-03-18 | Bergische Achsenfabrik Fr. Kotz & Söhne | Axle bearing for trailer wheels |
| GB2278162A (en) * | 1993-05-18 | 1994-11-23 | Honda Motor Co Ltd | Wheel support structure and method of installing wheels in a motor vehicle |
| FR2784147A1 (en) * | 1998-09-18 | 2000-04-07 | Ntn Toyo Bearing Co Ltd | WHEEL SUPPORT DEVICE |
| WO2003070490A1 (en) * | 2002-02-20 | 2003-08-28 | Meritor Heavy Vehicle Systems Cameri Spa | Wheel hub assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB693884A (en) * | 1951-03-05 | 1953-07-08 | Timken Roller Bearing Co | Improvements in or relating to railway car axle journal bearing mountings |
| GB760304A (en) * | 1954-12-20 | 1956-10-31 | British Timken Ltd | Improvements relating to axle-boxes |
| GB885899A (en) * | 1959-12-29 | 1962-01-03 | Timken Roller Bearing Co | Improvements in bearings for tapered shafts |
| GB1349340A (en) * | 1971-06-22 | 1974-04-03 | Timken Co | Roller bearings |
| GB1467566A (en) * | 1974-08-14 | 1977-03-16 | Gen Motors Corp | Rotary mechanism bearing arrangements |
-
1983
- 1983-03-21 GB GB08307752A patent/GB2117459A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB693884A (en) * | 1951-03-05 | 1953-07-08 | Timken Roller Bearing Co | Improvements in or relating to railway car axle journal bearing mountings |
| GB760304A (en) * | 1954-12-20 | 1956-10-31 | British Timken Ltd | Improvements relating to axle-boxes |
| GB885899A (en) * | 1959-12-29 | 1962-01-03 | Timken Roller Bearing Co | Improvements in bearings for tapered shafts |
| GB1349340A (en) * | 1971-06-22 | 1974-04-03 | Timken Co | Roller bearings |
| GB1467566A (en) * | 1974-08-14 | 1977-03-16 | Gen Motors Corp | Rotary mechanism bearing arrangements |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0475088A1 (en) * | 1990-09-14 | 1992-03-18 | Bergische Achsenfabrik Fr. Kotz & Söhne | Axle bearing for trailer wheels |
| GB2278162A (en) * | 1993-05-18 | 1994-11-23 | Honda Motor Co Ltd | Wheel support structure and method of installing wheels in a motor vehicle |
| GB2278162B (en) * | 1993-05-18 | 1996-10-30 | Honda Motor Co Ltd | Wheel support structure and method of installing wheels in motor vehicle |
| FR2784147A1 (en) * | 1998-09-18 | 2000-04-07 | Ntn Toyo Bearing Co Ltd | WHEEL SUPPORT DEVICE |
| US6224266B1 (en) | 1998-09-18 | 2001-05-01 | Ntn Corporation | Wheel bearing device |
| WO2003070490A1 (en) * | 2002-02-20 | 2003-08-28 | Meritor Heavy Vehicle Systems Cameri Spa | Wheel hub assembly |
| CN100355592C (en) * | 2002-02-20 | 2007-12-19 | 美驰重型车***卡梅里有限责任公司 | Wheel hub assembly |
| US7413261B2 (en) | 2002-02-20 | 2008-08-19 | Meritor Heavy Vehicle Systems Cameri Spa | Wheel hub assembly |
| US8382213B2 (en) | 2002-02-20 | 2013-02-26 | Meritor Heavy Vehicle Systems Cameri Spa | Wheel hub assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8307752D0 (en) | 1983-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |