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GP300S Cone Crusher Main Shaft Assembly Alloy Steel Forged OEM
ONA Casting supplies GP Series main shaft assemblies forged from alloy steel. Each unit is 100 % dynamic-balanced and shipped complete with shaft, sleeves, key, seals and bolts. Fast global delivery, 1-year warranty, material and dimensional report included.
Item No :
GP100, GP100S, GP11F, GP200, GP200S, GP220, GP300, GP500S, GP550Part Number :
ONA-916186, ONA-916187, ONA-916231, ONA-932956, ONA-MM0310111, ONA-916173, ONA-MM0310133, ONA-936406, ONA-MM0528601, ONA-MM0260020, ONA-MM0262457, ONA-916197, ONA-MM0301263, ONA-MM0301237, ONA-MM0262456Payment :
TTProduct Origin :
ChinaColor :
CustomizedShipping Port :
ShanghaiLead Time :
30 DaysOrder(MOQ) :
1The main shaft assembly is the core load-bearing and motion transmission component of the GP series cone crusher, equivalent to the "heart" and "skeleton" of the entire machine. It transmits the rotational motion of the eccentric assembly to the crushing head assembly, generating the rotational motion required for crushing, while simultaneously bearing all crushing forces and transmitting them to the frame.

The gp crusher replacement parts main shaft and the head are installed together through interference fit. The bottom is equipped with a dust seal ring (made of phenolic cloth resin) and a lower thrust bearing, and the top is equipped with a protection bushing (made of alloy steel) suit to Metso cone crusher. At the top, a protection bushing (made of high-strength alloy steel) provides the bearing interface between the main shaft and the eccentric bushing, preventing direct metal-to-metal contact and maintaining proper oil film clearance.
Eg: GP300S ONA-MM0300546 Mainshaft Assembly

| Position | Part Number | Description | Quantity | Weight. KG |
| 1 |
ONA-188321
|
Head | 1 | 1464.64 |
| 2 |
ONA-292715
|
Main Shaft | 1 | 1409.76 |
| 4 |
ONA-315928
|
Slide Ring | 1 | 64 |
| 5 |
ONA-315929
|
Protection Bushing | 1 | 40.37 |
| 7 |
ONA-446209
|
Seal | 1 | 4.49 |
| 9 |
ONA-406300555200
|
Washer | 8 | 0.01 |
| 12 |
ONA-7001530417
|
Screw Hex | 8 | 0.2 |
| 14 |
ONA-704602303400
|
Plug Plastic | 4 | 0.01 |
Production and Maintenance
ONA Mainshaft Assembly
ONA provides comprehensive replacement solutions for the entire range of spindle assemblies and related transmission components for major cone crusher brands, suit to Metso GP/HP/MP series, suit to Sandvik CH/CS series, and standard models such as suit to Symons. All assemblies are manufactured strictly according to OEM original drawings and process standards, with key mating dimensions completely consistent with original parts, enabling seamless replacement.

| ONA-9445-8317 | ONA-9005-0107 | ONA-452.6149-901 |
| ONA-TC6821100 | ONA-TC6871001 | ONA-TC36 |
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