WB21,WB23 Front and Rear Axles for Concrete Mixer Truck

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Description
WB21 and WB23 front and rear axle for concrete mixer truck are designed for the market. These products are suitable for concrete mixer trucks with 2.1 to 2.3m wide mixer and other engineering machinery at the same level.

Our front and rear axle for concrete mixer truck have passed the 500-hour strength test at the national level in China, so the quality is ensured. We mainly supply the products for XCMG, Degong,Yituo (Luoyang) Building Machinery, Dezhougonglu and WBEST, etc. Besides, customized design and manufacture of axles are provided to meet customers’ requirement.

Classification
1. Front Axles for Concrete Mixer Truck
The front axle adopts wholly welded method, so it has better load bearing capacity. Besides, it is the hydraulic steering axle adopting Steyr steering universal joints. The whole structure is reliable and compact, and the steering becomes easy and flexible. Therefore, our product is widely used for WB21 and WB23 mixer trucks as well as other similar machines. After minor change, it also can be applied to other engineering machinery such as crushers.

WB21,WB23 Front and Rear Axles for Concrete Mixer Truck

The picture below shows the basic geometry of steering. M indicates the distance between two kingpins, 1 means the steering arm and 2 is the tie rod. These three factors compose the steering trapezoid. This proper structure enables non-slipping run.

1. 1: Steering arm
2. 2: Tie rod
3. M: Distance between Two Kingpins
4. Rmin: Minimum turn radius
5. L: Distance between axles
6. B: Distance between wheels
α≠β and ctgα-ctgβ＝M/L
If the equation is satisfied, then all wheels will be in non slip condition during turning.

2. Rear Axles for Concrete Mixer Truck
A. Complete with three-stage reduction design, the final reduction gear ratio is 163.24.
B. The hub reduction adopts the NGW planetary design, which ensures reliable performance.
C. The sizes of motors input ports come in variety of offering to meet clients’ needs.
D. The inner drum brake is applied for service brake and parking brake.

Technical specification
Front axle

Nominal load rating of axle (t)	Max. vehicle speed	Turning angle	Max. oscillation angle	Steering mode	Toe in
7.5t	50km/h	±37 °	±11.5 °	Hydraulic power steering	3.7mm
Connecting dimensions	Model Specification	L1	L2	L3	L4	D1	D2	D3
	WB23A	950	592	110	669	Φ30h6	Φ40h6	Φ 30 ▷ 1: 10
	WB23B	950	920	135	669	Φ30h6	Φ40h6	Φ 30 ▷ 1: 10
	WB23C	1360	945		590	Excluded in supply		Φ 24H8 (Straight hole)

Rear axle

Axle ratio	I	23.26	Load capacity of axle	20000kg
			Max. input torque	712.5N.m
Gear ratio of gearbox	I1	1	Gear shifting pressure	0.6-0.8MPa
	I2	7.02	Stroke of gear shifting	17.5± 1

Motor connecting dimensions	Model	Number of teeth	Diametrical pitch (module)	CXC	D1	H	D2	D3
	Sauer	23	Dp =16/32	154× 154	Φ 127H6	16	M14	Φ 162
	Rexroth	21
	Rexroth	18	M=2	185× 185	Φ 160H7	40.5	M16	Φ 200
Rexroth	21

Front axles and rear axles for mixing machine

Related Names
4 Wheel Drive Axle | Front Axle Assembly | Rear Differential Carrier

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