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Female Flat Buffer 15x15mm M4 60 Shore - 1515FFB04-60
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Sealey FWA49 Flat Washer M4 x 9mm DIN 125 Form A Zinc - Pack of 100
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Technical Specification
PRODUCT NUMBER 2015FFB06-601508MFB10-452030MFB18-602030FFB06-601520FFB04-70
Type Flat BufferFlat BufferFlat BufferFlat BufferFlat Buffer
Length 08mm30mm30mm20mm
Height 15mm
Size 20x15mm15x08mm20x30mm20x30mm15x20mm
Deflection 3.7527.57.55
Diameter 15mm20mm20mm15mm
Diameter Range 11-25mm11-25mm11-25mm11-25mm
Length Range Up to 10mm26-50mm26-50mm11-25mm
Shore Hardness 45606070
Thread M6M4M6M6M4
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Q 1. What are the load and deflection ratings for the 1515FFB04-60?

A. This buffer is rated to a maximum load of 30.5 kg with a deflection of 3.75 mm. These figures apply to the 15 x 15 mm body with an M4 female thread at the 60 Shore A hardness grade.

Q 2. What does 60 Shore A hardness mean in practical terms for this buffer?

A. The 60 Shore A grade is the medium hardness option within this geometry. It provides a balance between vibration isolation and load support — offering more resistance to deflection than the softer 45 Shore grade while retaining greater compliance than the 70 Shore variant. This makes it suitable for general-purpose mounting where both energy absorption and positional stability are needed.

Q 3. What types of equipment is the 1515FFB04-60 suited to?

A. This buffer is suitable for use on industrial machinery, agricultural equipment, construction and off-highway plant, commercial vehicles, and power generation equipment. Its compact 15 x 15 mm footprint and M4 thread make it especially appropriate for lighter-duty mounting points, sensitive assemblies, and locations where space is limited.

Q 4. How does this buffer work to protect machinery?

A. The buffer uses rubber-to-metal bonded construction to absorb and dissipate energy from impact shocks and vibration caused by external moving components. It can be loaded in shear, compression, or a combination of both, reducing transmitted force to surrounding structures, improving machinery lifespan, and improving operator comfort.

Q 5. What other Shore A grades are available in this 15 x 15 mm M4 female flat buffer size?

A. The same geometry is available in 45 Shore A (SKU 1515FFB04-45) for greater deflection and better isolation at lower loads, and 70 Shore A (SKU 1515FFB04-70) for higher load capacity with reduced movement. The choice of grade depends on the load requirements and the degree of vibration isolation needed.

Q 6. Are custom material options available for this buffer?

A. Yes. Stainless steel metalwork and oil-resistant or high-temperature rubber compounds are available on request, alongside additional and custom sizes. Contact PartsForMachines to discuss requirements.

Q 7. What is your returns policy?

A. We accept returns within 30 days of purchase for items that are unused, undamaged, and in their original packaging. Returns are available only for UK-delivered orders and must include proof of purchase. Before returning an item, please contact us at [email protected] to obtain a Return Merchandise Number (RMN).

Q 8. When will my order be dispatched?

A. In-stock orders placed before 14:30 Monday to Friday are usually dispatched the same day.

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