60305774 Steel ball Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

60305774 Steel ball Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

The 60305774 steel ball is a core component of hydraulic valve control. Working with the valve core and seat, it achieves oil circuit sealing, reversing lock-up, and pressure regulation. High-precision spherical surface fitting completes oil circuit on/off operations. Made of high-hardness bearing steel, it undergoes quenching hardening and precision polishing, resulting in a smooth surface, pressure and impact resistance, and resistance to wear and deformation. It is suitable for high-frequency, heavy-duty operations in mining, earthmoving, and other similar environments.
The original factory steel ball is of standard size and precise roundness, providing excellent fit and sealing. Under high pressure conditions, it is sensitively positioned and leak-free. The high material hardness allows it to withstand long-term repeated compression and impact, and it is not prone to pitting, wear, or deformation. Old steel balls are prone to surface wear, dents, and misalignment, causing poor sealing, pressure loss, valve core jamming, equipment malfunction, and weak lifting. This product is an original factory standard part, supporting in-situ non-destructive replacement, quickly restoring valve group control accuracy and reducing equipment maintenance costs.

Core technical parameters

– Product Model: 60305774
-Product Name: Steel Ball
– Product Type: Original Parts for Hydraulic Valve Assembly Sealing Control in Engineering Machinery
– Compatible Equipment: Compatible with corresponding specifications of hydraulic cylinder valve assembly, supporting in-situ non-destructive replacement.
– Main body material: High-hardness bearing steel, high strength, high wear resistance, pressure and impact resistance, and not easily deformed.
– Processing technology: integrated precision grinding, ultra-precision polishing, quenching and hardening, and dimensional calibration.
– Core functions: oil circuit sealing, reversing locking, pressure locking, and precise pressure control.
– Pressure resistance: Withstands high-pressure impact, stable under pressure, and not easily cracked or deformed.
– Precision characteristics: Highly round, smooth spherical surface, and excellent sealing performance.
– Wear-resistant properties: Resistant to repeated compression and friction, and not prone to pitting wear after long-term use.
– Environmentally resistant: oil and corrosion resistant, fatigue resistant, suitable for complex and heavy-duty working conditions.
– Installation features: Original standard size, precise alignment and fit, easy installation and removal.
– Applicable working conditions: high-voltage locking, high-frequency reversing, continuous impact, heavy-duty operation.
– Service life: High hardness and good stability, maintaining sealing and positioning accuracy for a long time.

The 60305774 original steel ball is high-precision, wear-resistant, pressure-bearing, and provides stable sealing, making it suitable for various heavy-duty construction scenarios in engineering machinery. It effectively solves problems such as steel ball wear and deformation, seal leakage, pressure drop, valve core jamming, and malfunction, stabilizing the operating performance of hydraulic valve groups, reducing downtime due to malfunctions, and lowering maintenance costs. It is suitable for equipment maintenance, overhauls, and bulk stocking.

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29 O-ring retainer
30 O-rings
31 150901020083B021 Socket head cap screw
32 guide belt
33-hole sealing ring
34 O-ring retainer
35 O-ring
36 60305774 Steel ball
37 150901020082B030 Cylindrical pin
38 60325553 Socket headstock set screw
39 150901020082B037 Hex head bolt
40 150901020082B038 Flat Washer
41 150901020082B039 Type 1 Hex Nut
42 150901020082B036 Socket head cap screw
43 150901020083B026 Socket head cap screw
44 150901020083B027 Socket head cap screw
45 150901020082B031 Socket head cap screw
46 150901020081B026 O-ring
47 150901020083B028 Socket head cap screw
48 150901020083B029 Socket head cap screw
49 150901020081B024 O-ring
52 150902030076A003 Pressure test plug
53 150901020083B030 Dustproof ring
54 150901020081B027 Dustproof ring
55 150901020083B031 Self-lubricating copper bushing
56 150901020083B032 Self-lubricating copper bushing
57 150901020083B033 Sealed Package

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