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Male-Female Bobbin Mount 40x20mm M10 45 Shore - 4020MF25-45
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Technical Specification
PRODUCT NUMBER 2008MM18-702515FF06-703015MF20-603025FF08-702520FF06-70
Type Bobbin MountBobbin MountBobbin MountBobbin MountBobbin Mount
Length 08mm15mm25mm20mm
Height 15mm
Size 20x08mm25x15mm30x15mm30x25mm25x20mm
Deflection 0.811.12.11.6
Diameter 20mm25mm30mm25mm
Diameter Range 11-25mm11-25mm26-50mm11-25mm
Length Range Up to 10mm11-25mm11-25mm11-25mm
Mount Dimension 30mm
Shore Hardness 70707070
Thread M6M6M8M8M6
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Q 1. What is the maximum load rating and deflection for the 4020MF25-45?

A. This mount has a maximum load rating of 42.0 kg and a deflection of 1.6 mm, making it suitable for lighter installations where high compliance and vibration absorption are the priority.

Q 2. What does the 45 Shore A hardness grade mean in practice?

A. A 45 Shore A rating indicates a soft rubber compound. Softer grades provide greater deflection under load and better isolation performance, particularly at lower frequencies, compared with medium or firm grades. This makes the 45 Shore A mount the correct choice when isolating sensitive or lighter equipment rather than restraining heavy loads.

Q 3. What thread sizes does the 4020MF25-45 use?

A. The mount features an M10 x 25 mm male stud on one face and an M10 female thread on the other, giving a male-female configuration for direct in-line installation.

Q 4. What are the overall dimensions of this bobbin mount?

A. The body measures 40 mm diameter by 20 mm height (D x H: 40 x 20 mm).

Q 5. In which loading directions can this mount be used?

A. The mount may be loaded in shear, compression, or a combination of both, giving flexibility in how it is oriented within a machine structure.

Q 6. What types of equipment is this mount suited to?

A. Source-confirmed applications include air-conditioning units, exhaust mountings, diesel engines, generator sets, instruments, and general industrial machinery and equipment. Industries served include construction and off-highway, agriculture, power generation, marine, railway and mass transit, automotive, and military and defence.

Q 7. Are other Shore hardness grades or sizes available in this male-female bobbin range?

A. Yes. On the same 40 x 20 mm body, the 4020MF25-60 (60 Shore medium) and 4020MF25-70 (70 Shore firm) are available for higher-load or stiffer applications. Larger male-female bobbin mounts include the 100100MF44, 10050MF44, 10055MF44, 10060MF44, 10075MF44, and 1008MF10.

Q 8. Can I order custom rubber compounds or stainless steel hardware for this mount?

A. Yes. Oil-resistant rubbers, high-temperature rubber compounds, stainless steel hardware, and additional or custom sizes are all available on request.

Q 9. How long does delivery take?

A. Standard UK mainland delivery is 3–5 working days. Next-day delivery is available on most products and will appear as an option at checkout where eligible.

Q 10. How long does delivery take?

A. Standard UK mainland delivery is 3–5 working days. Next-day delivery is available on most products and will appear as an option at checkout where eligible.

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