Self Steering Modul Drum Brake Axle Type B

The steerable spring drum axle (Type B) is one of the specialized products of RST Axles, designed for trailers and heavy-duty trucks with high load capacities. This axle, with a load capacity of up to 12,000 kilograms and a drum brake system with a diameter of 420 mm, ensures reliable and safe performance even under demanding working conditions.

The steerable feature of this axle allows for better maneuverability on narrow roads and urban routes. In addition to increasing safety, it reduces tire wear and helps improve fuel efficiency.

In terms of technical specifications, this axle has a BM distance of 2040 and 2095 mm. Its kingpin distance (SP) is 1375 and 1345 mm, and it is designed with a 10-bolt wheel pattern (M22×1.5). The recommended tire size for this axle is 285/65 R 22.5, which is widely used in heavy transportation. These specifications indicate that the Type B steerable spring drum axle is highly compatible with common needs in the transportation industry.

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Axle Technical Data Table

Product code Axle Load Brake system LBM GM BM FM SP OH/K Tyres Recommended
- 9000kg-12000kg Drum Brake Ø420 1345 1375 820 980 2040 280/335
10Bolts M22 x 1.5		 285/65 R 22.5
- 1395 1430 870 1030 2095

Suspension System Specifications

E C F D G Empty without air X(mm) Loaded without air X(mm) Air Spring Bracket(mm) ST FH
255 130 35 83 87 285 270 - 268 365
315 300 50 395

Axle Technical Data Tablی

Product code
-
-
Axle Load
9000kg-12000kg
-
Brake system
Drum Brake Ø420
-
LBM
1345
1395
GM
1375
1430
BM
820
870
FM
980
1030
SP
2040
2095
OH/K
280/335 10 Bolts M22 x 1.5
-
Tyres Recommended
285/65 R 22.5
-

Suspension System Specifications

E
255
255
C
130
130
F
35
35
D
83
83
G
87
87
Empty without air X
285
315
Loaded without air X
270
300
Air Spring Bracket
-
50
ST
268
268
FH
365
395
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The suspension system of this axle is designed to ensure complete balance and stability in both unloaded and fully loaded conditions. Standard dimensions for the spring bracket, X distance, as well as ST and FH values, contribute to extending the chassis lifespan and preventing excessive stress on vehicle components.

The main advantages of this axle include its steerability for improved maneuverability, the high durability of the drum brake system, long service life, and full compatibility with trailers and heavy-duty trucks. These features make the Type B steerable spring drum axle an ideal choice for transportation companies and trailer manufacturers seeking a high-performance, safe, and cost-efficient product.