Brake assembly wear parts (highest replacement frequency)
|
Spare Part Name |
Key Specifications |
Replace standard |
Note |
|---|---|---|---|
|
Brake Lining (Friction Pad) |
Mounted by wheel diameter (Φ200/250/315/400...), non-castable type with no asbestos material | The remaining thickness reaches δmin (for example, if the original 10mm remaining thickness is less than 5mm, or the wear exceeds 2mm). It is replaced in pairs. | The left and right must be swapped in pairs. YWZ5/9 is an insert-type wedge-shaped gasket. |
|
Brake Lining (Friction Pad) |
With slots/sleeve pins, matched according to wheel diameter | The valve seat is deformed and the hole diameter is elliptical with an error of more than 0.5mm. | The padding can be replaced individually, while the tire generally does not need to be replaced separately. |
|
Hinge pin / Mandrel |
According to the sample diameter (Φ12 to Φ25, etc.) | Wear > Original diameter 5% or ovality > 0.5mm Update |
|
|
Self-lubricating bearing (bushing) |
Fit to each hinge hole | Cracking and abnormal noises during rotation | YWZ5/9 has built-in swing hinge points and does not require oiling. |
|
Split pin / Lock nut / Jam nut |
Standard parts according to samples | Deformation, thread slippage, or replacement are all options. | Always prepare a set of tools when conducting an inspection. |
|
Retraction distance device assembly |
YWZ5/8/9 Special Use | When the difference between the two sides of the retreat distance is greater than 0.1mm and cannot be adjusted, replace it. | Including connecting rods and adjusting bolts |
|
Main braking spring |
Inside the spring tube, there are scale markings. | Free length change > 5%, with cracks observed | The springs on both sides must be replaced at the same time. |
|
Pull rod assembly / Spring pull rod |
By model | Loose threads, bending | The complete machine comes with 1 set. |






