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Caution
Outer diameter size (Φ7, Φ11, Φ13, Φ15, Φ17) standard added!
A tension spring whose free length can be specified in units of 1 mm.
The outer diameter and length can be freely specified according to the intended use.
Piano wire is also based on the outer diameter.
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Part Number | - | d | - | S |
WFSP3 UFSP20 | - - | 0.3 2.6 | - - | 10 498 |
Part Number | Wire Dia. d mm | S 1mm Increment | Maximum deflection factor (S) % | Standard Spring Constant (When S = 10) N/mm | Initial Tension N | ||||
Type | D | WFSP | UFSP | WFSP | UFSP | WFSP | UFSP | ||
BWFSP | BUFSP | BWFSP | BUFSP | BWFSP | BUFSP | ||||
WFSP UFSP BWFSP BUFSP | 3 | 0.3 | 10〜300 | 176% | 174% | 0.13 | 0.11 | 0.18 | 0.21 |
0.4 | 82% | 84% | 0.60 | 0.50 | 0.53 | 0.64 | |||
4 | 0.4 | 172% | 174% | 0.20 | 0.20 | 0.31 | 0.38 | ||
0.5 | 96% | 92% | 0.75 | 0.65 | 0.77 | 0.92 | |||
5 | 0.5 | 10〜500 | 168% | 164% | 0.35 | 0.30 | 0.49 | 0.59 | |
0.6 | 100% | 102% | 0.90 | 0.80 | 1.01 | 1.21 | |||
6 | 0.6 | 158% | 164% | 0.50 | 0.45 | 0.71 | 0.85 | ||
0.8 | 72% | 72% | 2.35 | 2.05 | 2.13 | 2.55 | |||
7 | 0.7 | 140% | 132% | 0.65 | 0.60 | 0.96 | 1.15 | ||
0.9 | 70% | 64% | 2.60 | 2.25 | 2.94 | 3.5 | |||
8 | 0.8 | 148% | 152% | 0.90 | 0.80 | 1.26 | 1.51 | ||
1 | 82% | 84% | 2.90 | 2.55 | 3.04 | 4.26 | |||
9 | 1 | 10〜550 | 112% | 114% | 1.95 | 1.70 | 2.45 | 3.43 | |
1.2 | 66% | 66% | 5.25 | 4.65 | 4.41 | 6.17 | |||
10 | 1 | 148% | 140% | 1.35 | 1.20 | 1.96 | 2.74 | ||
1.2 | 88% | 86% | 3.65 | 3.25 | 4.31 | 6.03 | |||
1.4 | 58% | 56% | 8.50 | 7.50 | 7.64 | 10.7 | |||
11 | 1 | 160% | 152% | 1.00 | 0.85 | 1.45 | 2.01 | ||
1.2 | 92% | 90% | 2.65 | 2.35 | 3.24 | 4.51 | |||
1.4 | 62% | 60% | 6.20 | 5.40 | 6.39 | 8.87 | |||
12 | 1 | 232% | 226% | 0.75 | 0.65 | 1.18 | 1.65 | ||
1.2 | 142% | 140% | 1.95 | 1.75 | 2.84 | 3.98 | |||
1.4 | 92% | 92% | 4.55 | 4.00 | 5.39 | 7.55 | |||
1.6 | 62% | 60% | 9.40 | 8.30 | 8.72 | 12.21 | |||
13 | 1 | 240% | 234% | 0.55 | 0.50 | 0.93 | 1.29 | ||
1.2 | 144% | 142% | 1.55 | 1.35 | 2.17 | 3.01 | |||
1.4 | 94% | 94% | 3.50 | 3.05 | 3.95 | 5.49 | |||
1.6 | 64% | 62% | 7.10 | 6.20 | 7.75 | 10.76 | |||
14 | 1.2 | 208% | 192% | 1.20 | 1.05 | 2.06 | 2.88 | ||
1.4 | 138% | 130% | 2.70 | 2.40 | 3.82 | 5.35 | |||
1.6 | 94% | 90% | 5.55 | 4.90 | 6.66 | 9.32 | |||
1.8 | 68% | 66% | 10.50 | 9.30 | 10.6 | 14.84 | |||
15 | 1.2 | 212% | 196% | 0.95 | 0.85 | 1.5 | 2.09 | ||
1.4 | 140% | 132% | 2.15 | 1.90 | 3.03 | 4.21 | |||
1.6 | 96% | 92% | 4.40 | 3.80 | 4.74 | 6.59 | |||
1.8 | 70% | 68% | 8.45 | 7.35 | 9.25 | 12.85 | |||
16 | 1.4 | 192% | 182% | 1.75 | 1.55 | 3.04 | 4.26 | ||
1.6 | 132% | 130% | 3.55 | 3.15 | 5.1 | 7.14 | |||
1.8 | 96% | 94% | 6.65 | 5.90 | 8.33 | 11.66 | |||
2 | 68% | 70% | 11.85 | 10.50 | 12.6 | 17.64 | |||
17 | 1.4 | 194% | 184% | 1.45 | 1.25 | 2.21 | 3.08 | ||
1.6 | 134% | 132% | 2.90 | 2.50 | 4.03 | 5.6 | |||
1.8 | 98% | 96% | 5.55 | 4.85 | 6.74 | 9.37 | |||
2 | 70% | 72% | 9.90 | 8.65 | 10.9 | 15.13 | |||
18 | 1.6 | 176% | 174% | 2.40 | 2.10 | 4.02 | 5.63 | ||
1.8 | 128% | 128% | 4.50 | 4.00 | 6.47 | 9.06 | |||
2 | 94% | 96% | 7.95 | 7.00 | 10 | 14 | |||
2.3 | 62% | 60% | 17.00 | 15.05 | 18.7 | 26.18 | |||
20 | 1.8 | 168% | 156% | 3.15 | 2.80 | 5.1 | 7.14 | ||
2 | 122% | 120% | 5.55 | 4.95 | 7.94 | 11.12 | |||
2.3 | 82% | 80% | 11.85 | 10.50 | 15.2 | 21.28 | |||
2.6 | 58% | 58% | 23.20 | 20.50 | 23.6 | 33.04 | |||
22 | 2 | 150% | 148% | 4.05 | 3.60 | 7.35 | 10.3 | ||
2.3 | 106% | 104% | 8.60 | 7.60 | 11.8 | 16.5 | |||
2.6 | 74% | 74% | 16.75 | 14.80 | 19.6 | 27.4 | |||
2.9 | 54% | 54% | 30.45 | 26.95 | 33.3 | 46.6 | |||
25 | 2.3 | 144% | 144% | 5.60 | 4.95 | 9.8 | 13.7 | ||
2.6 | 100% | 104% | 10.85 | 9.60 | 15.7 | 22 | |||
2.9 | 76% | 72% | 19.65 | 17.40 | 22.5 | 31.5 | |||
3.2 | 56% | 54% | 33.75 | 29.85 | 34.3 | 48 | |||
28 | 2.6 | 138% | 128% | 7.45 | 6.60 | 12.7 | 17.8 | ||
2.9 | 102% | 98% | 13.45 | 11.90 | 17.6 | 24.6 | |||
3.2 | 78% | 74% | 22.90 | 20.25 | 27.4 | 38.4 | |||
3.5 | 62% | 58% | 37.45 | 33.10 | 39.2 | 54.9 |
D/d*1 | Tolerance |
Less than 8 | ±1.5% of D dimension (Min. ±0.2mm) |
8~20 | ±2% of D dimension (Min. ±0.3mm) |
• Calculate the maximum deflection and spring constant using the following formula. | |
• Maximum deflection Maximum deflection (mm) = S × maximum deflection factor (%) | • Spring constant(reference value) Spring constant (N/mm) = reference spring constant × 10/S |
Maximum deflection(mm) = 498×58% = 288.84 | Spring constant(N/mm) = 20.50 × | 10 | = 0.41 |
498 |
Part Number |
---|
BUFSP3-0.3-[10-300/1] |
BUFSP3-0.4-[10-300/1] |
BUFSP4-0.4-[10-300/1] |
BUFSP4-0.5-[10-300/1] |
BUFSP5-0.5-[10-500/1] |
BUFSP5-0.6-[10-500/1] |
BUFSP6-0.6-[10-500/1] |
BUFSP6-0.8-[10-500/1] |
BUFSP7-0.7-[10-550/1] |
BUFSP7-0.9-[10-550/1] |
BUFSP8-0.8-[10-500/1] |
BUFSP8-1.0-[10-500/1] |
BUFSP9-1.0-[10-550/1] |
BUFSP9-1.2-[10-550/1] |
BUFSP10-1.0-[10-550/1] |
BUFSP10-1.2-[10-550/1] |
BUFSP10-1.4-[10-550/1] |
BUFSP11-1.0-[10-550/1] |
BUFSP11-1.2-[10-550/1] |
BUFSP11-1.4-[10-550/1] |
BUFSP12-1.0-[10-550/1] |
BUFSP12-1.2-[10-550/1] |
BUFSP12-1.4-[10-550/1] |
BUFSP12-1.6-[10-550/1] |
BUFSP13-1.0-[10-550/1] |
BUFSP13-1.2-[10-550/1] |
BUFSP13-1.4-[10-550/1] |
BUFSP13-1.6-[10-550/1] |
BUFSP14-1.2-[10-550/1] |
BUFSP14-1.4-[10-550/1] |
BUFSP14-1.6-[10-550/1] |
BUFSP14-1.8-[10-550/1] |
BUFSP15-1.2-[10-550/1] |
BUFSP15-1.4-[10-550/1] |
BUFSP15-1.6-[10-550/1] |
BUFSP15-1.8-[10-550/1] |
BUFSP16-1.4-[10-550/1] |
BUFSP16-1.6-[10-550/1] |
BUFSP16-1.8-[10-550/1] |
BUFSP16-2.0-[10-550/1] |
BUFSP17-1.4-[10-550/1] |
BUFSP17-1.6-[10-550/1] |
BUFSP17-1.8-[10-550/1] |
BUFSP17-2.0-[10-550/1] |
BUFSP18-1.6-[10-550/1] |
BUFSP18-1.8-[10-550/1] |
BUFSP18-2.0-[10-550/1] |
BUFSP18-2.3-[10-550/1] |
BUFSP20-1.8-[10-550/1] |
BUFSP20-2.0-[10-550/1] |
BUFSP20-2.3-[10-550/1] |
BUFSP20-2.6-[10-550/1] |
BUFSP22-2.0-[10-550/1] |
BUFSP22-2.3-[10-550/1] |
BUFSP22-2.6-[10-550/1] |
BUFSP22-2.9-[10-550/1] |
BUFSP25-2.3-[10-550/1] |
BUFSP25-2.6-[10-550/1] |
BUFSP25-2.9-[10-550/1] |
BUFSP25-3.2-[10-550/1] |
Part Number | Price | Minimum Order Qty. | Volume Discount | Days to Ship | RoHS | Material | Hook Opposing Angle | Outer Dia. D (Ø) | Initial Tension (N) | Standard Spring Constant (N/mm) | Wire Dia. (Ø) | S (mm) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 3 | 0.21 | 0.11 | 0.3 | 10 ~ 300 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 3 | 0.64 | 0.5 | 0.4 | 10 ~ 300 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 4 | 0.38 | 0.2 | 0.4 | 10 ~ 300 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 4 | 0.92 | 0.65 | 0.5 | 10 ~ 300 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 5 | 0.59 | 0.3 | 0.5 | 10 ~ 500 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 5 | 1.21 | 0.8 | 0.6 | 10 ~ 500 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 6 | 0.85 | 0.45 | 0.6 | 10 ~ 500 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 6 | 2.55 | 2.05 | 0.8 | 10 ~ 500 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 7 | 1.15 | 0.6 | 0.7 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 7 | 3.50 | 2.25 | 0.9 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 8 | 1.51 | 0.8 | 0.8 | 10 ~ 500 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 8 | 4.26 | 2.55 | 1 | 10 ~ 500 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 9 | 3.43 | 1.7 | 1 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 9 | 6.17 | 4.65 | 1.2 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 10 | 2.74 | 1.2 | 1 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 10 | 6.03 | 3.25 | 1.2 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 10 | 10.70 | 7.5 | 1.4 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 11 | 2.01 | 0.85 | 1 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 11 | 4.51 | 2.35 | 1.2 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 11 | 8.87 | 5.4 | 1.4 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 12 | 1.65 | 0.65 | 1 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 12 | 3.98 | 1.75 | 1.2 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 12 | 7.55 | 4 | 1.4 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 12 | 12.21 | 8.3 | 1.6 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 13 | 1.29 | 0.5 | 1 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 13 | 3.01 | 1.35 | 1.2 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 13 | 5.49 | 3.05 | 1.4 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 13 | 10.76 | 6.2 | 1.6 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 14 | 2.88 | 1.05 | 1.2 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 14 | 5.35 | 2.4 | 1.4 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 14 | 9.32 | 4.9 | 1.6 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 14 | 14.84 | 9.3 | 1.8 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 15 | 2.09 | 0.85 | 1.2 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 15 | 4.21 | 1.9 | 1.4 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 15 | 6.59 | 3.8 | 1.6 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 15 | 12.85 | 7.35 | 1.8 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 16 | 4.26 | 1.55 | 1.4 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 16 | 7.14 | 3.15 | 1.6 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 16 | 11.66 | 5.9 | 1.8 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 16 | 17.64 | 10.5 | 2 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 17 | 3.08 | 1.25 | 1.4 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 17 | 5.60 | 2.5 | 1.6 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 17 | 9.37 | 4.85 | 1.8 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 17 | 15.13 | 8.65 | 2 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 18 | 5.63 | 2.1 | 1.6 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 18 | 9.06 | 4 | 1.8 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 18 | 14 | 7 | 2 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 18 | 26.18 | 15.05 | 2.3 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 20 | 7.14 | 2.8 | 1.8 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 20 | 11.12 | 4.95 | 2 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 20 | 21.28 | 10.5 | 2.3 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 20 | 33.04 | 20.5 | 2.6 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 22 | 10.3 | 3.6 | 2 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 22 | 16.5 | 7.6 | 2.3 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 22 | 27.4 | 14.8 | 2.6 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 22 | 46.6 | 26.95 | 2.9 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 25 | 13.70 | 4.95 | 2.3 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 25 | 22.00 | 9.6 | 2.6 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 25 | 31.50 | 17.4 | 2.9 | 10 ~ 550 | ||
- | 1 Piece(s) | 8 Day(s) or more | 10 | - | 90° | 25 | 48.00 | 29.85 | 3.2 | 10 ~ 550 |
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Type | Standard Type |
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