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SR : Standard Motor Springs, 0.00-7.99N Load

Springs » Constant Force Motor Springs »
SR : Standard Motor Springs (Ave. Fatigue Life of 20,000 Cycles)

SR : Standard Motor Springs (Ave. Fatigue Life of 20,000 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
SR100 0.00 0.03 3.175 0.051 1168 9.5 15.9 13.0 18.1 17.0 7.9 E £4.15
SR101 0.01 0.06 6.350 0.051 1168 9.5 15.9 13.0 18.1 17.0 7.9 E £4.48
SR102 0.01 0.11 4.760 0.076 1753 14.3 23.8 19.4 27.2 25.4 11.8 E £4.71
SR103 0.02 0.18 7.940 0.076 1753 14.3 23.8 19.4 27.2 25.4 11.8 E £5.09
SR104 0.03 0.26 6.350 0.102 2337 19.1 31.8 25.9 36.3 33.8 15.9 E £5.52
SR105 0.04 0.50 9.520 0.102 2337 19.1 31.8 25.9 36.3 33.8 15.9 D £5.90
SR106 0.06 0.61 9.520 0.127 2921 23.8 39.6 32.5 45.2 42.4 19.8 A £7.86
SR107 0.09 0.90 12.700 0.127 2921 23.8 39.6 32.5 45.2 42.4 19.8 A £8.46
SR108 0.12 1.16 12.700 0.152 3505 28.5 47.5 38.9 54.4 50.8 23.8 A £11.26
SR109 0.14 1.46 15.880 0.152 3505 28.5 47.5 38.9 54.4 50.8 23.8 A £12.38
SR110 0.23 2.33 14.290 0.203 4674 38.1 63.5 51.8 72.4 67.8 31.8 A £13.56
SR111 0.40 4.05 15.880 0.254 5842 47.5 79.3 64.8 90.4 84.6 39.6 A £17.97
SR112 0.69 7.02 19.050 0.305 7010 56.9 95.0 77.7 108.5 101.6 47.5 A £24.63
SR113 0.92 9.35 25.400 0.305 7010 56.9 95.0 77.7 108.5 101.6 47.5 C £26.53
SR114 1.25 12.70 25.400 0.356 8179 66.6 111.0 90.4 127.5 118.4 55.4 C £34.62
SR115 1.83 18.70 50.800 0.305 7010 56.9 95.0 77.7 108.5 101.6 47.5 F £42.12
SR116 2.49 25.40 50.800 0.356 8179 66.6 111.0 90.4 127.0 118.4 55.4 F £53.19
SR117 3.10 31.60 38.100 0.457 10516 85.6 142.8 116.8 162.6 152.4 71.4 F £63.62
SR118 4.14 42.20 50.800 0.457 10516 85.6 142.8 116.8 162.6 152.4 71.4 F £77.91
SR119 6.18 63.00 50.800 0.559 12852 104.7 174.5 142.2 199.4 186.2 87.1 K £104.09
SR120 7.99 81.50 50.800 0.635 14605 118.9 198.4 162.6 226.1 211.6 99.1 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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