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Sitrak Front Hub Assembly
Sitrak Front Hub Assembly
2025-05-04
Sitrak Right Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Wear Alarm)
Sitrak Right Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Wear Alarm)
2025-05-04

Sitrak Left Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Wear Alarm)

Sitrak Left Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Wear Alarm)
Sitrak Left Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Wear Alarm)
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What is the Sitrak Left Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Wear Alarm)

  • Sitrak Left Drum Brake Assembly (φ400×150, Self – Adjusting Arm, Wear Alarm): High – Performance Braking for Heavy – Duty Trucks
  • The Sitrak Left Drum Brake Assembly (φ400×150, Self – Adjusting Arm, Wear Alarm) is a state – of – the – art braking solution designed for heavy – duty trucks. It offers reliable stopping power, durability, and advanced features to ensure safety and efficiency on the road.
  • Structural and Fastening Components
  • The assembly is held together by a variety of high – strength bolts. Hexagon head bolts M20*1.5 and Hexagonal head bolt M14*1.5 are used to secure different parts of the brake assembly firmly. These bolts are made of high – grade steel, ensuring they can withstand the high stress and vibrations during braking operations.
  • The Front left brake assembly (φ400×150, self – adjusting arm, wear alarm) is the main component of this setup. It comes from different reliable manufacturers such as Shandong Lead and Jiangsu Huali, which are known for their quality in the automotive industry. The Brake clearance automatic adjusting arm(left) is a crucial part that automatically adjusts the brake clearance as the friction plates wear, ensuring consistent braking performance over time.
  • Brake Shoe and Related Components
  • The Brake Shoe (I) is an essential part of the braking mechanism. It is lined with a Friction Plate that creates the necessary friction to stop the vehicle when the brake is applied. The Bushings – Brake Shoe are used to reduce friction and allow smooth movement of the brake shoe. The Brake base plate left WG4071455511 – 011(Shandong Lead) provides a stable foundation for the brake shoe and other components.
  • The Shoe Shaft Set Screw, Steel wire lock wire, and Shoe Shaft work together to secure the brake shoe in place. The Return spring and Return spring retaining pin ensure that the brake shoe returns to its original position after the brake is released. The Left camshaft is responsible for actuating the brake shoes, and the Shaft retaining ring keeps it in position.
  • Sealing and Lubrication Components
  • The Brake base plate oil seal assembly and Brake Base Plate Bushings prevent oil leakage and ensure proper lubrication of the moving parts. The Clip ring – roller shaft, Roller, and Roller shaft are part of the mechanism that helps in the smooth operation of the brake. The Roller Oil Seal and O – ring provide additional sealing to keep contaminants out. 
  • The Oil cup 45°M10X1 is used for lubrication purposes, allowing easy access to add lubricant to the necessary parts. The Dust cover and Clogging – dust cover protect the internal components from dust and debris, which can cause premature wear.
  • Adjustment and Safety Components
  • Spring washers, Adjustment washers, and Nuts are used for adjusting and securing different parts of the assembly. The Flexible Retaining Ring for Shaft – Camshaft and ABS hole rubber plug play important roles in ensuring the proper functioning of the camshaft and the anti – lock braking system respectively. 
  • The Wear alarm assembly (H653) is a significant feature of this drum brake assembly. It alerts the driver when the friction plates are worn beyond a certain level, allowing for timely replacement and preventing potential braking failures. The Flat pin and Rivet are used for further fastening and connection of components.
  • In summary, the Sitrak Left Drum Brake Assembly (φ400×150, Self – Adjusting Arm, Wear Alarm) is a comprehensive and high – performance braking solution. With its advanced design, quality components, and safety features, it provides reliable and efficient braking for heavy – duty trucks, ensuring the safety of drivers and cargo on the road.

Product Parameters of Sitrak Left Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Wear Alarm)

AC40414571313 Left Drum Brake Assembly (φ400×150, Self-Adjusting Arm, Wear Alarm)
Serial No.  Drawing No. Name Quantity
1 ZQ151B2045TF6 Hexagon head bolts M20*1.5 2
2 ZQ151B1445TF6 Hexagonal head bolt M14*1.5 2
3 WG4071450011 Front left brake assembly (φ400×150, self-adjusting arm, wear alarm) 1
4 WG4005456211 Brake clearance automatic adjusting arm(left) 1
WG4071450011 Front left brake assembly (φ400×150, self-adjusting arm, wear alarm)
Serial No.  Drawing No. Name: Front Left Brake Assembly (φ400×150, self adjusting arm, wear alarm) Quantity
1 WG4071450011/1 Front left brake assembly(φ400×150,wear alarm)(Shandong Lead) 1
2 WG4071450011/2 Front Left Brake Assembly(φ400×150,Wear Alarm) (Jiangsu Huali) 1
WG4071450011/1 Front left brake assembly (φ400×150, wear alarm) (Shandong Lead)
Serial No.  Drawing No. Name Quantity
1 WG4005455501+001/1 Brake Shoe (I) 2
2 WG4005455501+003/1 Bushings-Brake Shoe 2
3 WG4071450011+001/1 Brake base plate left WG4071455511-011(Shandong Lead) 1
4 WG4005455501+005/1 Shoe Shaft Set Screw 2
5 WG4005455501+006/1 Steel wire lock wire 1
6 WG4005455501+007/1 Shoe Shaft 2
7 WG4005455501+008/1 Return spring 1
8 WG4005455521+001/1 Left camshaft 1
9 WG4005455501+010/1 Shaft retaining ring 2
10 WG4005455501+011/1 Return spring retaining pin 2
11 WG4005455501+012/1 Brake base plate oil seal assembly 1
12 WG4005455501+013/1 Brake Base Plate Bushings 2
13 WG4005455501+015/1 Clip ring-roller shaft 2
14 WG4005455501+016/1 Roller 2
15 WG4005455501+017/1 Roller shaft 2
16 WG4005455501+018/1 Oil cup 45°M10X1 1
17 WG4005455501+019/1 Dust cover 1
18 WG4005455521+002/1 Camshaft washer ring 1
19 WG4005455501+021/1 Clogging-dust cover 2
20 WG4005455501+022/1 Spring washers 4
21 WG4005455501+023/1 Hexagon head bolts 4
22 WG4005455501+025/1 Adjustment washers 4
23 WG4005455501+026/1 Flexible Retaining Ring for Shaft-Camshaft 1
24 WG4005455501+027/1 ABS hole rubber plug 1
25 WG4005455501+028/1 Friction Plate 4
26 WG4005455541+006/1 Roller Oil Seal 4
27 WG4005455541+007/1 O-ring 4
28 WG4070453011+004/1 Rivet 20
29 WG4005455552+002/1 Spring washers 2
30 WG4005455552+003/1 Nuts 2
31 WG4005455552+004/1 Flat pin 2
32 WG4005455552+021/1 Wear alarm assembly (H653) 1
WG4071450011/2 Front left brake assembly(φ400×150,wear alarm)(Jiangsu Huali)
Serial No.  Drawing No. Name Quantity
1 WG4071450011+001/2 Brake Shoe 2
2 WG4071450011+002/2 Friction Lining 4
3 WG4071450011+003/2 Rivet 24
4 WG4071450011+004/2 Return spring shaft 2
5 WG4071450011+005/2 Front left camshaft 1
6 WG4071450011+006/2 Hexagon nuts 2
7 WG4071450011+007/2 Flexible washer 2
8 WG4071450011+008/2 Front Left Brake Base Plate Assembly 2
9 WG4071450011+009/2 Left dust cover 1
10 WG4071450011+010/2 Camshaft retaining ring 1
11 WG4071450011+011/2 Adjustment washers 4
12 WG4071450011+012/2 Return Spring 1
13 WG4071450011+013/2 Plug-Dust Cover 2
14 WG4071450011+014/2 Bolt-Dust Cover 6
15 WG4071450011+015/2 Flexible washer-dust cover 6
16 WG4071450011+016/2 Front Shoe Piece Shaft 2
17 WG4071450011+017/2 O-Ring 4
18 WG4071450011+018/2 Screw-Shoe Shaft 2
19 WG4071450011+019/2 ABS Plug 1
20 WG4071450011+020/2 Snap ring-Roller shaft 2
21 WG4071450011+021/2 Roller Oil Seal 4
22 WG4071450011+022/2 Roller 2
23 WG4071450011+023/2 Roller shaft 2
24 WG4071450011+024/2 Electronic wear sensor assembly 1
25 WG4071450011+025/2 Flexible retaining rings for shafts 1
26 WG4071450011+026/2 Flat pins 1
27 WG4071450011+027/2 Hexagon nuts (fine thread) 1
28 WG4071450011+028/2 Elastic washers 1
 

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