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Jumbo Marine Mount - Anti-Vibration, Thread Size M24, Max Load 940Kg - SM1841-40
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Technical Specification
PRODUCT NUMBER SM1657-75SM1657-65SM1657-55SM1609-75SM1657-45
Type Engine MountEngine MountEngine MountEngine MountEngine Mount
Deflection 55656
Overall Height 74mm74mm74mm50mm74mm
Thread M20M20M20M16M20

Q 1. What industries and applications is the SM1841 Jumbo Marine Mount designed for?

A. The Silent Marine Jumbo mount was originally designed for marine propulsion engine installations and is also suitable for general engine mounting. Source data confirms it is used across construction and off-highway, agriculture, power generation, marine, railway and mass transit, automotive, and military and defence applications.

Q 2. In which loading directions can the SM1841 be installed?

A. The mount may be loaded in shear, compression, or a combination of both, giving flexibility in how it is orientated within an installation without compromising its vibration isolation function.

Q 3. What are the key dimensions and thread specification of the SM1841?

A. Principal diameter (A) 330 mm; overall height (B) 111 mm; base plate (C) 190 mm; top plate (D) 270 mm; central bore (d) 135 mm; fixing thread (M) M24; flange thickness (F) 22 mm; stud projections S 7 mm and S1 14 mm.

Q 4. What does the failsafe arrangement on this mount provide?

A. The failsafe arrangement gives a positive mechanical stop that remains effective even under abnormal loading conditions, ensuring the engine or machinery unit remains secured should the rubber element be subject to overload.

Q 5. What construction method is used in the SM1841?

A. The mount uses rubber-to-metal bonded construction, in which the elastomer is vulcanised directly to the metal components to ensure consistent load transfer, long service life, and reliable vibration isolation performance.

Q 6. Are custom material options available for the SM1841 Jumbo Marine Mount?

A. Yes. Stainless steel metalwork and oil-resistant or high-temperature rubber compounds are available on request, as are additional and custom sizes, to suit more demanding or specialised installation environments.

Q 7. What are the functional benefits of fitting anti-vibration mounts such as the SM1841?

A. Fitting vibration isolation mounts improves machinery lifespan by reducing transmitted stress, protects surrounding structures from vibration-induced fatigue, and improves operator comfort during extended operation.

Q 8. What if my order arrives damaged or incorrect?

A. WhatsApp us on 07754 288583 with photos of the item and packaging, and we will resolve the issue in line with our returns policy.

Q 9. Can I ask questions about this product before ordering?

A. Yes — WhatsApp us on 07754 288583 with any questions about specifications, suitability, or compatibility.

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