Original SANY Stud 60326191 Construction Machinery Parts

The genuine SANY parts reference 60326191 is the Stud, a high‑strength threaded rod used for precise alignment and clamping in SANY heavy machinery assemblies. The 60326191 stud features rolled threads on both ends, with a reduced plain shank in the middle, providing accurate standoff height and consistent clamp load in cylinder head, manifold, and bearing cap applications.

Manufactured from case‑hardened alloy steel (grade 10.9) with a zinc‑nickel coating, this stud delivers excellent tensile strength, fatigue resistance, and corrosion protection. Each 60326191 unit is 100% inspected for thread form, concentricity, and hardness, guaranteeing reliable fastening in SRT dump trucks, SY excavators, SW wheel loaders, and motor graders.

Stud

Шпилька

Espárrago

Stud

Шпилька

Espárrago

Stud

Шпилька

Espárrago

Material and Design of Stud 60326191

The stud 60326191 is manufactured from chromium‑molybdenum alloy steel (SCM435 / 35CrMo), quenched and tempered to property class 10.9 per ISO 898-1. Minimum tensile strength is 1040 MPa, yield strength 940 MPa, with hardness 32-39 HRC. The stud has rolled threads on both ends (6g tolerance) with a plain reduced shank in the middle. The thread length at each end is typically 20 mm, and the total length is 80 mm ±0.5 mm.

Rolled threads improve fatigue strength and grain flow. The plain shank provides a precise standoff and prevents thread galling when the stud is installed into a tapped hole. One end of the stud has a slight chamfer to facilitate starting. The external surface is zinc‑nickel plated (8-12 µm) with black trivalent passivation, providing 500 hours of salt spray resistance (ASTM B117). This coating also offers a stable friction coefficient of µ=0.12-0.16.

The stud is designed for use with nuts and washers. It is commonly installed using a double‑nut method or a stud driver. The thread pitch is metric coarse: M12 x 1.75. The stud is used in applications requiring accurate positioning and high clamp load, such as cylinder head attachment, exhaust manifold mounting, and bearing cap retention.

All 60326191 studs are 100% inspected: thread go/no‑go (both ends), total length, and hardness. A sample from each batch is proof load tested (94 kN for M12) and must withstand the load without permanent set. Magnetic particle inspection detects surface cracks. A laser‑etched batch code on the plain shank provides full traceability to material lot, heat treat batch, and coating line.

Critical Applications of Stud 60326191 in SANY Equipment

The stud 60326191 is used in high‑stress bolted joints where accurate positioning and high clamp load are critical. Typical applications include cylinder head attachment, exhaust manifold mounting, turbocharger support, and bearing cap retention on SANY diesel engines. On SRT dump trucks, it secures the brake caliper brackets and suspension components. On SY excavators, it fastens the swing drive housing and track frame brackets.

In SANY diesel engines (D07/D09/D12 series), 60326191 studs are used for the exhaust manifold studs, injection pump mounting, and water pump attachment. The stud allows precise tightening of nuts without rotating the fastener in the tapped hole, ensuring accurate torque control and preventing thread damage. For cylinder head applications, follow the SANY workshop manual for tightening sequences and torque values.

When replacing a stud, always use a new one. Do not reuse studs that have been previously torqued. Clean the tapped hole thoroughly before installation. Apply a light coat of thread lubricant or anti‑seize compound (copper‑based) to prevent galling, especially in aluminum housings.

Compatible SANY Models & Interchange Information

The stud 60326191 is used across SANY’s heavy equipment line: SRT45, SRT55, SRT95, SRT115 dump trucks; SY215 to SY500H excavators; SW305, SW405, SW465 wheel loaders; SMG200/220 graders; and STC crawler cranes. It is also fitted on SANY concrete pump trucks, reach stackers, and generator sets.

The stud thread is M12 x 1.75 (metric coarse). The total length is 80 mm, with 20 mm of thread at each end. The plain shank diameter is 10.5 mm. Always verify the original stud length and thread pitch. When ordering, specify 60326191 to receive the correct material, thread length, and zinc‑nickel coating.

For fleet maintenance, stock genuine 60326191 studs. Aftermarket studs often use lower‑grade steel (8.8) or lack proper case hardening, leading to thread stripping or premature fatigue failure. Genuine SANY studs guarantee grade 10.9 strength, rolled threads, and corrosion resistance.

Technical Specifications – Stud 60326191

Proper Installation of Stud 60326191

Before installing the stud 60326191, clean the tapped hole in the component using a thread chaser or a tap. Remove any old threadlocker, rust, or debris. Apply a light coat of thread lubricant or anti‑seize compound to the end of the stud that will be installed into the blind hole (the “fixed” end). Do not lubricate the exposed end if a threadlocker will be used.

Use a stud driver or the double‑nut method to screw the stud into the tapped hole until it bottoms out or reaches the specified depth (typically 20 mm). Do not over‑torque the stud during installation – hand‑tight plus a quarter turn is sufficient. Once the stud is seated, install the nut and washer, then tighten the nut to the torque specified in the SANY manual (typically 60-80 Nm for M12 grade 10.9).

After torquing, mark the nut and stud end. Recheck torque after 100 operating hours for critical joints (exhaust manifolds, cylinder heads). If the stud loosens or if the nut shows signs of backing off, replace the stud – the threads may be damaged. Store new studs in a clean, dry environment.

Symptoms of a Damaged or Incorrect Stud 60326191

A damaged 60326191 stud will show signs of thread galling or stripping. If the stud is stretched (over‑torqued), the threads may appear necked or distorted. A loose stud (unable to maintain preload) will cause joint movement, gas or fluid leaks, and audible rattling. On an exhaust manifold, loose studs will cause exhaust noise, soot stains, and eventual gasket failure.

Corrosion (red rust) on the stud indicates coating failure – replace it. A bent stud (visible runout) will misalign the nut, causing uneven clamp load. If the stud was cross‑threaded during installation, it will not tighten properly and may damage the tapped hole. Always start the stud by hand to avoid cross‑threading.

During maintenance, inspect each stud for thread damage, corrosion, or distortion. Replace any stud that shows signs of wear or has been in service for more than 5 years. Use only genuine 60326191 studs for replacement.

Quality Assurance & Full Traceability for 60326191

Every stud 60326191 is produced in an IATF 16949 certified facility. Production steps include wire rod analysis, cold forming, thread rolling (both ends), heat treatment (quench and temper), and zinc‑nickel coating. In‑process checks monitor hardness, thread dimensions, and concentricity using optical comparators.

Final inspection includes 100% optical sorting for thread presence, length, and plain shank condition. A sample from each batch is proof load tested (94 kN for M12) and must show no permanent set. Coating thickness is verified using XRF, and salt spray testing (500 hours) is performed on a sample. A laser‑etched batch code on the plain shank provides traceability to material cert, heat treat batch, and coating line.

For bulk orders, SANY supplies a Certificate of Conformance (CoC) confirming that all 60326191 studs meet ISO 898-1 class 10.9, dimensional, and coating requirements. Independent third‑party audits ensure compliance with ISO 9001:2015 and IATF 16949. Use only genuine SANY studs for guaranteed performance.

Field Performance of Genuine SANY Stud

Field data from SANY equipment operating in Australian mines and Canadian oil sands shows that genuine 60326191 studs maintain clamp load for over 10,000 operating hours in high‑vibration environments. The 10.9 grade provides excellent fatigue resistance, and the zinc‑nickel coating withstands salt spray and humidity. Rolled threads prevent stress risers and thread failure.

Aftermarket studs often use grade 8.8 material or lack proper case hardening, resulting in thread stripping or fatigue fracture within 3,000 hours. Their coatings may be thin, leading to rust and seizure. Genuine SANY studs eliminate these failures. Fleet owners report 90% fewer stud‑related failures after switching to genuine studs.

To maximize service life, always replace studs when removing nuts from critical joints. Use a torque wrench for nut installation. Store studs in a dry cabinet. Following these practices ensures reliable fastening and eliminates fastener‑related downtime.