SPRING CA T ALOGUE - Lee Spring

Radiusplease note that R (radius) where force isapplied, is always 1/2 of A (length of leg).Dotted lines of legs show loaded positionwhere values of T (Torque) will be achieved at R(Radius)Lee Stock NumberPlease add suffix M for Music Wireor S for 302 Stainless Steelwhen ordering.Wire Diameterin ascending order of size.Torquevalues shown are for averageuse. However, if properlymounted and the values shownunder T (Torque) are reduced byapproximately 20%, the life ofthe spring will be considerablyimproved(See note 6).12345TORSION SPRINGS● Left Hand or Right HelixLEESTOCKNUMBERGuide to using tablesLength of Leglengths of leg are shown on A inthe sketches below.TORSION SPRINGS● Music Wire (Plated), or Stainless Steel (Passivated)NOMINAL(T)(A)(R)SUGGESTED (L) BODYOUTSIDEPRICE GROUPWIRETORQUELENGTHMANDRELTOTALRADIUSLENGTHDIAMETER(see footnotes)OF LEGSIZENO. OF Music 302DIAMETERAPPROX.Wire StainlessCOILSMM IN N-MM IN-LB MM IN MM IN MM IN MM IN MM IN M SLT 012A 01 0.30 0.012 5.65 0.050 4.75 0.187 9.52 0.375 2.67 0.105 1.65 0.065 1.37 0.054 3.25 F HLT 012A 07 6.35 0.250 12.70 0.500 3.72 0.146 2.36 0.093 0.99 0.039 2.25 H KLT 014A 01 0.36 0.014 8.47 0.075 6.35 0.250 12.70 0.500 3.15 0.124 1.57 0.062 1.65 0.065 3.25 F HLT 014A 07 6.35 0.250 12.70 0.500 4.37 0.172 3.18 0.125 1.16 0.046 2.25 H KLT 015B 01 0.38 0.015 11.30 0.100 6.35 0.250 12.70 0.500 2.82 0.111 1.57 0.062 1.73 0.068 3.25 H KLT 015B 07 6.35 0.250 12.70 0.500 4.35 0.171 2.36 0.093 1.24 0.049 2.25 K MLT 017C 01 0.43 0.017 14.12 0.125 6.35 0.250 12.70 0.500 4.06 0.160 2.36 0.093 1.96 0.077 3.25 H KLT 017C 07 9.53 0.375 19.05 0.750 5.67 0.223 3.96 0.156 1.40 0.055 2.25 K MLT 018C 01 0.46 0.018 16.95 0.150 6.35 0.250 12.70 0.500 4.52 0.178 2.77 0.109 2.03 0.080 3.25 H KLT 018C 07 9.53 0.375 19.05 0.750 5.94 0.234 3.96 0.156 1.49 0.059 2.25 K MLT 020D 01 0.51 0.020 22.60 0.200 9.52 0.375 19.05 0.750 4.85 0.191 3.05 0.120 2.29 0.090 3.25 H KLT 020D 07 12.70 0.500 25.40 1.000 6.78 0.267 4.78 0.188 1.65 0.065 2.25 K MLT 021D 01 0.53 0.021 28.25 0.250 9.52 0.375 19.05 0.750 5.08 0.200 3.05 0.120 2.41 0.095 3.25 H KLT 021D 07 12.70 0.500 25.40 1.000 6.63 0.261 4.78 0.188 1.73 0.068 2.25 K MLT 023D 01 0.58 0.023 37.29 0.330 9.52 0.375 19.05 0.750 5.18 0.204 3.18 0.125 2.62 0.103 3.25 H KLT 023D 07 12.70 0.500 25.40 1.000 7.23 0.285 4.78 0.188 1.90 0.075 2.25 K MLT 025E 01 0.64 0.025 47.45 0.420 9.52 0.375 19.05 0.750 5.99 0.236 3.56 0.140 2.79 0.110 3.25 H KLT 025E 07 12.70 0.500 25.40 1.000 7.93 0.312 5.56 0.219 2.06 0.081 2.25 K MLT 028E 01 0.71 0.028 62.14 0.550 12.70 0.500 25.40 1.000 6.78 0.267 4.44 0.175 3.18 0.125 3.25 K MLT 028E 07 12.70 0.500 25.40 1.000 9.47 0.373 6.35 0.250 2.31 0.091 2.25 M PLT 030F 01 0.76 0.030 76.83 0.680 12.70 0.500 25.40 1.000 7.75 0.305 5.21 0.205 3.35 0.132 3.25 K MLT 030F 07 12.70 0.500 25.40 1.000 10.10 0.398 7.14 0.281 2.48 0.098 2.25 M PLT 032F 01 0.81 0.032 98.86 0.875 12.70 0.500 25.40 1.000 7.32 0.288 4.57 0.180 3.68 0.145 3.25 K MLT 032F 07 12.70 0.500 25.40 1.000 10.21 0.402 7.14 0.281 2.64 0.104 2.25 M PLT 035G 01 0.89 0.035 120.90 1.070 15.88 0.625 31.75 1.250 8.03 0.316 4.75 0.187 3.89 0.153 3.25 K MLT 035G 07 15.88 0.625 31.75 1.250 11.88 0.468 8.74 0.344 2.89 0.114 2.25 M PLT 038G 01 0.96 0.038 144.62 1.280 15.88 0.625 31.75 1.250 9.80 0.386 6.35 0.250 4.32 0.170 3.25 K MLT 038G 07 15.88 0.625 31.75 1.250 13.74 0.541 10.31 0.406 3.14 0.124 2.25 M PLT 040H 01 1.02 0.040 169.48 1.500 15.88 0.625 31.75 1.250 8.51 0.335 5.38 0.212 5.59 0.220 4.25 K MLT 040H 07 12.70 0.500 25.40 1.000 10.28 0.405 7.14 0.281 4.32 0.170 3.25 M PLT 045H 01 1.14 0.045 242.92 2.150 15.88 0.625 31.75 1.250 9.07 0.357 5.72 0.225 6.22 0.245 4.25 K MLT 045H 07 15.88 0.325 31.75 1.250 11.49 0.453 7.95 0.313 4.86 0.191 3.25 M PLT 048J 01 1.22 0.048 310.70 2.750 15.88 0.625 31.75 1.250 9.86 0.388 5.84 0.230 6.6 0.260 4.25 M PLT 048J 07 15.88 0.625 31.75 1.250 11.70 0.460 7.95 0.313 5.18 0.204 3.25 P RLT 051J 01 1.30 0.051 350.25 3.100 25.40 1.000 50.80 2.000 10.36 0.408 6.35 0.250 6.98 0.275 4.25 M PLT 051J 07 15.88 0.625 31.75 1.250 13.14 0.517 9.53 0.375 5.51 0.217 3.25 P RLT 054K 01 1.37 0.054 395.45 3.500 25.40 1.000 50.80 2.000 12.29 0.484 8.00 0.315 7.49 0.295 4.25 P RLT 054K 07 15.88 0.625 31.75 1.250 14.56 0.573 10.31 0.406 5.83 0.230 3.25 R TLT 059K 01 1.50 0.059 508.44 4.500 25.40 1.000 50.80 2.000 12.67 0.499 7.92 0.312 8.13 0.320 4.25 R TLT 059K 07 25.40 1.000 50.80 2.000 16.11 0.634 11.91 0.469 6.37 0.251 3.25 T VLT 063L 01 1.60 0.063 621.43 5.500 25.40 1.000 50.80 2.000 14.22 0.560 9.52 0.375 8.89 0.350 4.25 T VLT 063L 07 25.40 1.000 50.80 2.000 17.15 0.675 11.91 0.469 6.80 0.268 3.25 V XLT 070M 01 1.78 0.070 847.40 7.500 25.40 1.000 50.80 2.000 15.06 0.593 9.78 0.385 9.52 0.375 4.25 V XLT 070M 07 25.40 1.000 50.80 2.000 19.15 0.754 13.49 0.531 7.56 0.298 3.25 X ZLT 075M 01 1.91 0.075 1,039.48 9.200 25.40 1.000 50.80 2.000 16.18 0.637 9.91 0.390 10.21 0.402 4.25 X ZLT 075M 07 25.40 1.000 50.80 2.000 20.56 0.810 15.09 0.594 8.10 0.319 3.25 Z BBLT 078N 01 1.98 0.078 1,180.71 10.450 25.40 1.000 50.80 2.000 16.69 0.657 10.21 0.402 10.62 0.418 4.25 Z BBLT 078N 07 25.40 1.000 50.80 2.000 21.21 0.835 15.09 0.594 8.42 0.332 3.25 BB BDLT 085N 01 2.16 0.085 1,453.01 12.860 31.75 1.250 63.50 2.500 19.00 0.748 11.86 0.467 11.56 0.455 4.25 BB BDLT 085N 07 31.75 1.250 63.50 2.500 24.19 0.952 17.48 0.688 9.18 0.361 3.25 BD BFLT 095P 01 2.41 0.095 1,936.59 17.140 38.10 1.500 76.20 3.000 22.12 0.871 14.07 0.554 12.93 0.509 4.25 BD BFLT 095P 07 38.10 1.500 76.20 3.000 28.20 1.110 20.65 0.813 10.26 0.404 3.25 BF BHLT 105Q 01 2.67 0.105 2,374.00 21.000 44.45 1.750 88.90 3.500 21.54 0.848F= T 12.70 0.500Formula16.67 0.656 5.25 BE BGLT 105Q 07 44.45 1.750 88.90 3.500 34.08 1.342 26.19 R 1.031 11.33 0.446 3.25 BF BHLT 115R 01 2.92 0.115 3,165.00 28.000 50.80 2.000 101.60 4.000 24.84 0.978 15.09 0.594 18.26 0.719 5.25 BF BHLT 115R 07 50.80 2.000 101.60 4.000 36.82 1.450 27.76 1.093 12.41 0.489 3.25 BG BJLT 125S 01 3.18 0.125 3,617.00 32.000 50.80 2.000 101.60 4.000 25.12 0.989 15.01 0.591 23.02 0.906 6.25 BG BJLT 125S 07 50.80 2.000 101.60 4.000 34.84 1.372 26.19 1.031 16.67 0.656 4.25 BH BKLT 135T 01 3.43 0.135 4,522.00 40.000 50.80 2.000 101.60 4.000 27.99 1.102 16.92 0.666 24.86 0.979 6.25 BJ BLLT 135T 07 50.80 2.000 101.60 4.000 37.89 1.492 28.58 1.125 18.00 0.709 4.25 BK BMADDITIONAL INFORMATIONTo translate torque values to direct load: UseF = Load applied at Radius R. T = TorqueSales Hotline: Tel: +44 (0)118 978 1800 Fax: +44 (0)118 977 4832 or order on line @ www.leespring.co.uk90ºOutside Diameterof spring body.To calculate torque values other than those listed (Position of Ends), a direct proportion may be used.Inspection of Load. Loads should always be checked at the Radius (R value).Direction of Wind. Good design dictates that torsion springs should be used in the direction that winds thecoil. When ordering be sure to specify either Left or Right Hand wind.Material specifications, finishes and tolerances are detailed on page 163.133Suggested Mandrelsize allows approximatelya 10% clearance for thevarious deflections shown inexamples below. If greaterdeflections are required, wesuggest a suitable reductionin mandrel size.Price Groupreference to the price listNumber of Coilstotal coils in each spring.Body Lengthoverall length, see sketchbelow.90 Deflection 180 270 360ApproxBodyLengthARAAMandrel SizeNOTE: The Torsion Springs illustrated above are shown LEFT HAND WOUND“R” – Position of load“R” – In all cases is 1/2 the value of “A”“A” – Position of load6Please note that the torque listed in the following torsion spring tables relates only to music wire.When choosing stainless steel multiply the factors by 0.933.142Sales Hotline: Tel: +44 (0)118 978 1800 Fax: +44 (0)118 977 4832 or order online @ www.leespring.co.uk