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Catalogue Technical Specification
ISO Spring Tolerance for Free Length

CAD Data

B10 ISO spring 3D CAD Model
B13 ISO spring 3D CAD Model
B16 ISO spring 3D CAD Model
B20 ISO spring 3D CAD Model
B25 ISO spring 3D CAD Model
B32 ISO spring 3D CAD Model
B40 ISO spring 3D CAD Model
B50 ISO spring 3D CAD Model
B63 ISO spring 3D CAD Model

B40-139

Blue Die Springs B ISO 10243, Medium Load

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Hole Diameter mm	40
Free Length mm	139
Rod Diameter mm	20
Rate /± 10% N/mm	57.5
Recommended Working Deflection Long Spring Life 25% mm	35
Force N	2013
Recommended Working Deflection Medium Spring Life 30% mm	42
Force N	2415
Recommended Working Deflection Medium Spring Life 33.75% mm	46.9
Force N	2697
Maximum Operating Deflection 37.5% mm	52.5
Force N	3019
Approx. Outside Diameter mm	37.5
BXH	8.2x4.7

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B40-139 £7.30 (£8.76 inc VAT)
Value discounts applied at basket

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