China Customized OEM Cone Crusher Main Shaft Wholesale Factory

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No.19-1 9A 204, Econmic and Technology Development Area, Shenyang,China.

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slm@chinaslm.net

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+8615840301386

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+86-24-31123242

Cone Crusher socket liner

The cone crusher socket liner, a replaceable wear-resistant component in the socket’s bearing cavity, acts as an interface between the rotating main shaft and stationary socket. It protects against wear, reduces friction (≤0.15 with lubrication), distributes loads, and compensates for minor misalignment, requiring good wear resistance and lubricant compatibility. Structurally, it is a cylindrical/flanged sleeve with a liner body (bronze, babbitt, or bimetallic materials), inner bearing surface (Ra0.8–1.6 μm with oil grooves), outer surface (interference fit), optional flange, lubrication features, and chamfers, with 5–15 mm wall thickness. Manufacturing involves casting (centrifugal/sand) for bronze liners, plus heat treatment and machining, or steel shell preparation, bearing layer application (sintering/roll bonding) and machining for bimetallic ones. Quality control includes material testing (composition, hardness), dimensional checks (CMM, roundness testing), microstructural analysis, performance tests (friction, wear), and fit checks, ensuring it protects components for efficient crusher operation

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Cone Crusher socket

The cone crusher socket, a key component at the moving cone's bottom, functions as a pivot for the main shaft, transmits loads to the frame, facilitates lubrication, and maintains alignment. It operates under high loads, requiring strength, wear resistance, and precision. Structurally, it includes a high-strength alloy steel (42CrMo) body, a precision bearing cavity, eccentric bushing interface, lubrication channels, a mounting flange, and locating pins, with optional wear-resistant inserts. Manufacturing involves sand casting (pattern making, molding, melting/pouring), heat treatment (quenching/tempering, local hardening), and machining (precision boring, flange processing, channel drilling). Quality control covers material testing (composition, mechanics), dimensional checks (CMM, roundness testing), NDT (UT, MPT), mechanical tests (hardness, compression), and functional trials. These ensure it supports stable crusher operation in mining and aggregate processing.

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Cone Crusher Main Shaft

The cone crusher main shaft, a critical rotating component connecting the eccentric bushing to the moving cone, performs key functions such as power transmission (driving the moving cone's eccentric rotation), load bearing (withstanding axial and radial loads up to thousands of kilonewtons), eccentric motion guidance (maintaining the moving cone's orbital path), and structural alignment (ensuring concentricity between the moving and fixed cones). It requires exceptional tensile strength, fatigue resistance, and dimensional precision for operation at 500–1500 rpm. Structurally, it is a stepped, cylindrical or conical forged component consisting of the shaft body (high-strength alloy steel 42CrMo or 35CrNiMo with 100–500 mm diameter and 500–2000 mm length), upper cone mount, eccentric bushing interface, bearing journals, shoulders and keyways, and lubrication channels. The manufacturing process involves forging (billet heating to 1100–1200°C, open-die forging, precision forging) and heat treatment (quenching and tempering, local surface hardening). Its machining and manufacturing process includes rough machining, precision machining of critical features, lubrication channel drilling, balancing, and surface treatment. Quality control processes cover material and forging testing (chemical composition analysis, ultrasonic testing), dimensional accuracy checks (using CMM and laser alignment tool), mechanical property testing (hardness and tensile testing), non-destructive testing (MPT and eddy current testing), and functional testing (rotational and load testing). These processes ensure the main shaft achieves the required precision, strength, and reliability to drive the cone crusher's crushing motion in mining and aggregate processing applications

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Cone Crusher main shaft nut

The cone crusher main shaft nut, a critical fastener at the top or bottom of the main shaft, secures components like the main shaft bearing, eccentric bushing, and moving cone. Its primary functions include axial fixation (preventing displacement from vibration and loads), load transfer (distributing axial loads up to hundreds of kilonewtons), bearing preload adjustment, and contamination prevention. Structurally, it is a large heavy-duty fastener with a cylindrical or hexagonal profile, consisting of the nut body (high-strength alloy steel 42CrMo/35CrMo or cast steel ZG35CrMo), internal threads (class 6H tolerance, M30–M100 coarse-pitch), locking mechanisms (locking slots, tapered interface, set screw holes), torque application surface, seal groove, and shoulder/flange. For large nuts (outer diameter >300 mm), the casting process involves material selection (ZG35CrMo), pattern making (with shrinkage allowances), molding (green sand or resin-bonded sand), melting and pouring (controlled temperature and flow), cooling and shakeout, and heat treatment (normalization and tempering). The machining process includes rough machining, thread machining, locking feature machining, heat treatment for hardening (induction-hardened threads to HRC 45–50), finish machining, and surface treatment. Quality control covers material testing (chemical composition and hardness), dimensional checks (CMM and thread gauges), structural integrity testing (MPT and UT), functional testing (torque and vibration tests), and seal performance testing. These ensure the main shaft nut provides reliable fixation, enabling stable cone crusher operation under heavy loads and high vibrations

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Cone Crusher Main Shaft Sleeve

This paper details the main shaft sleeve of cone crushers, a crucial component positioned between the main shaft and the eccentric assembly. It primarily functions in radial support, friction reduction, load distribution, and lubrication retention. The component consists of the sleeve body, inner bore, outer surface, lubrication channels, flange (in some designs), and wear indicator grooves, each with specific structural features. The casting process for the bronze sleeve body is elaborated, including material selection (phosphor bronze), pattern making, molding, melting, pouring, heat treatment, and inspection. The machining and manufacturing process is also described, covering rough/finish machining, surface treatment, and assembly preparation. Additionally, quality control measures are specified, such as material validation, dimensional accuracy checks, surface quality inspection, functional testing, and wear resistance testing. These processes ensure the main shaft sleeve provides reliable support and friction reduction, enhancing the cone crusher’s efficiency and service life under heavy loads.

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