Rim Types

For truck tyres, there are essentially 3 basic rim types available on the market:

a. one-piece tubeless drop centre rims
b. multi-piece tube-type flat base rims
c. multi-piece tubeless flat base rims
d. multi-piece tube-type flat base rims

I-PIECE TUBELESS DROP CENTRE

(24", 25" ETC ... ) symmetric and asymmetric rims for construction machines and mobile cranes.

3-PIECE SEMI-DROP CENTRE RIMS

(mainly 20", 24". 25") rims for tubeless TG (Tractor-Grader) and EM-wide base tyres as well as narrow base mobile crane applications.

5-PIECE TUBELESS RIM (SMALL DRIVER)

Rim for tubeless EM- and EM-wide base tyres with small driver.

5-PIECE TUBELESS RIM (lARGE DRIVER)

Rim for tubeless EM- and EM-wide base tyres with large driver.

3-PIECE TUBE-TYPE RIMS

(mainly 20", 24") rims for tube-type on-and-off-the-road applications
 

CHECK YOUR RIMS

WHEN YOU CHllNGEYOURTYRES ....

Everyexperienced tyre user knows that theRIGHTtyre, usedfortheRIGHTjob, can makeabigdifferencein tyrelifeand operating efficiency.

THESAMETHINGISEQUALLYTRUEOFRIMS

If you make a tyrechange togetMOREefficiencyfora certain typeofwork--andfaiJ tomatch thenewtyres with therightrims-- youmayactualJy LOSEefficiency ... pJus maintenancetimeandrepJacementmoney.

Offset

All wheels have a given offset (0) which does not only provide for the necessary brake drum space, but which also determines track width, kingpin offset, handling characteristics and wheel bearing load. On dual assemblies, it also influences the dual spacing.

Tyre fitters and mechanics must therefore pay attention that:

a. specific vehicles are fitted with the correct offset wheels.
b. wheels with different offsets are not mixed up on the same axle.


Wheel offsets can be positive, negative or zero. The offset is defined as the distance from the wheel centre to the inside face of the disc (against the hub) and is called positive whenever this inside face is located outside of the centreline, negative when located inside, zero when matching the centreline exactly.