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SR : Standard Motor Springs, 0.00-10.10N Load

Springs » Constant Force Motor Springs »
SR : Standard Motor Springs (Ave. Fatigue Life of 5,000 Cycles)

SR : Standard Motor Springs (Ave. Fatigue Life of 5,000 Cycles)

Discounts 1+ 0% 10+ 5% 25+ 10% 50+ 15% 100+ 20%

Part
Number		 Load ±10% Spring Material D2 D3 D1 D4 C I/D*
Spring		 Spring
Ends†		 Cost Quantity Add to
Basket
Newtons Kg cms W T* L
SR79 0.00 0.04 3.175 0.051 1168 6.7 11.1 11.0 14.2 13.6 5.5 E £4.19
SR80 0.01 0.08 6.350 0.051 1168 6.7 11.1 11.0 14.2 13.6 5.5 E £4.50
SR81 0.01 0.14 4.760 0.076 1753 10.0 16.6 16.5 21.2 20.4 8.3 E £4.71
SR82 0.02 0.23 7.940 0.076 1753 10.0 16.6 16.5 21.2 20.4 8.3 E £5.09
SR83 0.03 0.33 6.350 0.102 2337 13.3 22.2 21.9 28.2 27.2 11.1 E £5.52
SR84 0.05 0.50 9.520 0.102 2337 13.3 22.2 21.9 28.2 27.2 11.1 D £5.91
SR85 0.08 0.78 9.520 0.127 2921 16.6 27.7 27.4 35.3 34.0 13.8 A £7.86
SR86 0.10 1.04 12.700 0.127 2921 16.6 27.7 27.4 35.3 34.0 13.8 A £8.46
SR87 0.15 1.49 12.700 0.152 3505 19.9 33.3 33.3 42.4 40.9 16.6 A £11.26
SR88 0.18 1.86 15.880 0.152 3505 19.9 33.3 33.3 42.4 40.9 16.6 A £12.41
SR89 0.29 2.99 14.290 0.203 4674 26.4 44.2 44.2 56.4 54.4 22.2 A £13.56
SR90 0.51 5.20 15.880 0.254 5842 33.3 55.4 55.4 70.9 68.1 27.7 A £17.96
SR91 0.87 8.92 19.050 0.305 7010 39.9 66.6 66.0 85.1 81.8 33.3 A £24.65
SR92 1.17 11.90 25.400 0.305 7010 39.9 66.6 66.0 85.1 81.8 33.3 C £26.53
SR93 1.60 16.30 25.400 0.356 8179 46.7 77.7 77.7 99.3 95.5 38.9 C £34.65
SR94 2.33 23.80 50.800 0.305 7010 39.9 66.6 66.0 85.1 81.8 33.3 F £42.12
SR95 3.20 32.60 50.800 0.356 8179 46.7 77.7 77.7 99.3 95.5 38.9 F £53.18
SR96 3.95 40.30 38.100 0.457 10516 59.7 99.6 99.6 127.3 122.4 49.8 F £63.62
SR97 5.30 54.00 50.800 0.457 10516 59.7 99.6 99.6 127.3 122.4 49.8 F £77.91
SR98 7.89 80.50 50.800 0.559 12852 73.2 121.9 121.9 156.0 149.9 61.0 K £104.09
SR99 10.10 103.00 50.800 0.635 14605 82.8 138.2 138.2 176.8 169.9 69.1 K £127.79
*reference only, may be varied to meet load specification. †See technical pages for spring end options.

Material
Spring: Type 301 High Yield Stainless Steel - 27 Working turns

W = Spring material width
T = Spring material thickness
L = Spring length (reference only)
C = Distance betweem drum centres (min)
D2 = Storage drum diameter
D3 = Torque drum diameter
D1 = Outside diameter of spring when fully wound on storage drum
D4 = Outside diameter of spring when fully wound on torque drum

Other Info.
Constant force extension springs provide a huge range of application opportunities.
Springs can be extended in excess of 50 times the relaxed length of the spring,
  and can be mounted on a bobbin or bush or free running in a cavity or recess.
Springs can be joined or laminated to provide increased force with minimal increases in space requirements.

Downloads
PDF Icon PDF Documents : Catalogue Pages | Technical

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