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Mail Us:jhon@onaie.cn
Call Us:+86 186 5551 2307Mail Us:jhon@onaie.cn
Eccentric Assembly – The “Heart” of a Cone Crusher
Item No :
HP3, HP4, HP200, HP300, HP400, HP500, MP1250, SG6089, 4.25FT, 7FTPart Number :
ONA-N98000793, ONA-N98000223, ONA- N98000027, ONA-N98000222, ONA-7090228204, ONA-N90228303, ONA-7090228208, ONA-N90228304, ONA-N90228304_0Payment :
TTProduct Origin :
ChinaColor :
CustomizedShipping Port :
ShanghaiLead Time :
30 DaysOrder(MOQ) :
1The eccentric assembly (also known as the eccentric sleeve assembly or eccentric sleeve counterweight assembly) is the core component of the cone crusher's transmission system. It plays a crucial role in converting the rotational motion of the motor into the gyratory crushing motion of the moving cone. Its precision and quality directly determine the crusher's crushing efficiency, operational stability, and overall lifespan.
The Position of the Eccentric Assembly
Eg: These are images of the HP6 Cone Crusher Eccentric Assembly equipment
Eg：HP6 Eccentric Assembly ONA-N98001155 Parts
| Pos. | Patr No. | Description |
| 1 | ONA-N43358030 | ECCENTRIC |
| 2 | ONA-N15607254 | ECCENTRIC BUSHING |
| 3 | ONA-N74129032 | THRUST BEARING, UPPER |
| 4 | 0NA-1003766291 | CAP SCRW HEXSCKTHD |
| 5 | ONA-1003086066 | WASHER, LOCK |
| 6 | ONA-7001619362 | PIN |
| 7 | ONA-N01530530 | BOLT, HEXAGONAL |
| 8 | ONA-1095059960 | LOCKING COMPOUND |
ONA Eccentric Assembly Product Introduction
An eccentric assembly is an integrated component mainly composed of an eccentric, an eccentric bushing, a gear, a counterweight, and a thrust bearing. Our products strictly adhere to original manufacturer technical standards, undergoing precision machining, hot-fitting and cold-shrinking copper bushings, full inspection by coordinate measuring machine (CMM), and dynamic balancing testing to ensure an eccentricity tolerance of ±0.05mm and 100% interchangeability with original components. We offer complete assemblies or individual parts, all shipped with full inspection and traceable data. The ONA brand covers a wide range of models, suitable for Metso HP/GP series, Sandvik CH/CS series, Symons, etc. The relevant part numbers are listed below.
| ONA-1093045000 | ONA-7090228301 | ONA-1093055002 | ONA-1093050023 | ONA-N90228024 |
| ONA-MM0407703 | ONA-MM0316879 | ONA-17-402-374-501 | ONA-1094462875 | ONA-9450 4834 |
Installation instructions for eccentric copper bushing
Note: The eccentric and eccentric bushing need to be cooled with dry ice for at least 2 hours, requiring approximately 90 kg of dry ice. When pouring the locking compound , the eccentric and eccentric bushing must be at an indoor temperature of approximately 70°F (21°C). The oil holes of the eccentric and eccentric bushing must be aligned.
About installation
1. Install the Thrust Bearing: Place the thrust bearing at the bottom of the eccentric assembly and tighten the bolts to secure it in place.
2. Press in the Eccentric Bushing: Insert the eccentric bushing, pre-cooled with dry ice, into the eccentric assembly using an interference fit. Before proceeding with this step, ensure that the dimensions of the eccentric assembly and the eccentricbushing are compatible to ensure an ideal fit after assembly.
3. Apply Locking Compound: Apply locking compound between the mating surfaces of the eccentric assembly and the eccentric bushing, and allow it to fully cure.
The core functions of Eccentric Assembly
Flexible Supply Options
ONA offers both complete assemblies and individual parts as supply options, allowing customers to choose flexibly based on their actual maintenance needs. Every product undergoes full inspection before leaving the factory, and the inspection data is documented and kept on file, ensuring full traceability and providing customers with reliable quality assurance.
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