Specifications

Part Number

UM16-80
UH16-80

■UM: Fmax. (Allowable Deflection) =LxFa%

Part Number		d	Solid Length	F max.	N{kgf}max.		Fa%	Unit Price
TypeD-L		d	Solid Length	F max.	N{kgf}max.		Fa%	Unit Price
UM 4-	5*	0.4	2.2	1.75	3.4	{0.35}	35
	10*	0.5	4.9	3.5	6.8	{0.7 }
	15	0.55	7.5	5.25	10.3	{1.05}
	20	0.6	11.1	7	13.7	{1.4 }
	25	0.6	11.1	8.75	17.2	{1.75}
	30	0.65	16.3	10.5	20.6	{2.1 }
UM 5-	5*	0.45	2.25	1.75	3.4	{0.35}	35
	10*	0.5	3.13	3.5	6.8	{0.7 }
	15	0.65	8.45	5.25	10.3	{1.05}
	20	0.65	8.45	7	13.7	{1.4 }
	25	0.7	11.9	8.75	17.2	{1.75}
	30	0.7	11.9	10.5	20.6	{2.1 }
	35	0.75	16.5	12.25	24.0	{2.45}
	40	0.8	23.2	14	27.5	{2.8 }
	45	0.8	23.2	15.75	30.9	{3.15}
	50	0.85	31.45	17.5	34.3	{3.5 }
UM 6-	5*	0.55	2.7	1.7	4.9	{0.5 }	35
	10	0.7	5.6	3.5	10.8	{1.1 }
	15	0.75	7.4	5.2	15.7	{1.6 }
	20	0.75	7.4	7	20.6	{2.1 }
	25	0.85	12.8	8.7	25.5	{2.6 }
	30	0.85	12.8	10.5	31.4	{3.2 }
	35	0.9	16.7	12.2	36.3	{3.7 }
	40	0.9	16.8	14	41.2	{4.2 }
	45	1.0	27.8	15.75	46.1	{4.7 }
	50	1.0	28.0	17.5	52.0	{5.3 }
	60	1.0	28.0	18	53.0	{5.4 }	30
	70	1.1	46.2	19.6	58.8	{6 }	28
UM 8-	10	0.85	6.4	3.5	10.8	{1.1 }	35
	15	0.9	7.9	5.2	15.7	{1.6 }
	20	0.9	7.9	7	20.6	{2.1 }
	25	0.9	7.9	8.7	25.5	{2.6 }
	30	1.0	12.0	10.5	31.4	{3.2 }
	35	1.0	12.0	12.2	36.3	{3.7 }
	40	1.1	18.7	14	41.2	{4.2 }
	45	1.1	18.7	15.75	46.1	{4.7 }
	50	1.1	18.7	17.5	52.0	{5.3 }
	60	1.2	28.2	21	61.8	{6.3 }
	70	1.3	42.0	24.5	72.6	{7.4 }
UM10-	10	0.9	5.2	3.5	10.8	{1.1}	35
	15	1.0	7.3	5.2	15.7	{1.6}
	20	1.0	7.3	7	20.6	{2.1}
	25	1.1	10.5	8.7	25.5	{2.6}
	30	1.1	10.5	10.5	31.4	{3.2}
	35	1.2	15	12.2	36.3	{3.7}
	40	1.2	15	14	41.2	{4.2}
	45	1.3	21.8	15.75	46.1	{4.7}
	50	1.3	21.8	17.5	52.0	{5.3}
	60	1.4	30.8	21	61.8	{6.3}
	70	1.4	30.8	24.5	72.6	{7.4}
UM13-	15	1.2	8.4	5.2	15.7	{1.6}	35
	20	1.3	11.1	7	20.6	{2.1}
	25	1.3	11.1	8.7	25.5	{2.6}
	30	1.4	15.1	10.5	31.4	{3.2}
	35	1.4	15.1	12.2	36.3	{3.7}
	40	1.4	15.1	14	41.2	{4.2}
	45	1.4	15.1	15.75	46.1	{4.7}
	50	1.4	15.1	17.5	52.0	{5.3}
	60	1.6	27.2	21	61.8	{6.3}
	70	1.6	27.2	24.5	72.6	{7.4}
	80	1.7	36.2	28	82.4	{8.4}
UM16-	15	1.4	9.6	5.2	15.7	{ 1.6}	35
	20	1.5	12.4	7	20.6	{ 2.1}
	25	1.5	12.4	8.7	25.5	{ 2.6}
	30	1.5	12.4	10.5	31.4	{ 3.2}
	35	1.6	15.6	12.2	36.3	{ 3.7}
	40	1.6	15.6	14	41.2	{ 4.2}
	45	1.7	20.4	15.75	46.1	{ 4.7}
	50	1.7	20.4	17.5	52.0	{ 5.3}
	60	1.8	26.1	21	61.8	{ 6.3}
	70	1.8	26.1	24.5	72.6	{ 7.4}
	80	1.8	26.1	28	82.4	{ 8.4}
UM20-	20	1.8	11.3	7	34.3	{ 3.5}	35
	25	1.9	13.3	8.75	43.1	{ 4.4}
	30	1.9	13.3	10.5	52.0	{ 5.3}
	35	2	16	12.25	59.8	{ 6.1}
	40	2	16	14	68.6	{ 7 }
	45	2.2	23.7	15.75	77.5	{ 7.9}
	50	2.2	23.7	17.5	86.3	{ 8.8}
	60	2.2	23.7	21	103.0	{10.5}
	70	2.4	34.8	24.5	120.6	{12.3}
	80	2.4	34.8	28	137.3	{14 }

kgf (Load)=N/mm (Spring Constant) x0.101972xF (Deflection)
{kgf}=Nx0.101972

[ ! ]For Types marked with *, both ends are not ground.
[ ! ]The values of solid length are for reference only.
There may be some variations depending on the lot.
[ ! ]Usage Count: 1 Million Times

■UH: Fmax. (Allowable Deflection)=LxFa%

Part Number		d	Solid Length	F max.	N{kgf}max.		Fa%	Unit Price
Type D-L		d	Solid Length	F max.	N{kgf}max.		Fa%	Unit Price
UH 4-	5*	0.45	2.7	1.5	4.4	{ 0.45}	30
	10*	0.5	3.8	3	8.8	{ 0.9 }
	15	0.6	8.1	4.5	13.2	{ 1.35}
	20	0.65	11.7	6	17.6	{ 1.8 }
	25	0.7	16.8	7.5	22.1	{ 2.25}
	30	0.7	16.8	9	26.5	{ 2.7 }
UH 5-	5*	0.55	3.3	1.5	4.4	{ 0.45}	30
	10	0.6	4.65	3	8.8	{ 0.9 }
	15	0.6	4.65	4.5	13.2	{ 1.35}
	20	0.75	11.81	6	17.6	{ 1.8 }
	25	0.75	11.81	7.5	22.1	{ 2.25}
	30	0.8	16	9	26.5	{ 2.7 }
	35	0.85	21.68	10.5	30.9	{ 3.15}
	40	0.85	21.68	12	35.3	{ 3.6 }
	45	0.9	28.8	13.5	39.7	{ 4.05}
UH 6-	5*	0.65	3.2	1.5	8.8	{ 0.9 }	30
	10	0.7	3.9	3	17.7	{ 1.8 }
	15	0.85	7.7	4.5	26.5	{ 2.7 }
	20	0.9	9.7	6	35.3	{ 3.6 }
	25	1.0	15.5	7.5	44.1	{ 4.5 }
	30	1.0	15.5	9	53.0	{ 5.4 }
	35	1.1	24.8	9.8	57.9	{ 5.9 }	28
	40	1.1	24.8	10	58.8	{ 6 }	25
	45	1.1	24.8	11.25	66.7	{ 6.8 }	25
	50	1.2	39.0	10	58.8	{ 6 }	20
	60	1.2	39.0	13.8	82.4	{ 8.4 }	23
	70	1.2	39.0	14.7	88.3	{ 9 }	21
UH 8-	10	0.9	5.3	3	17.7	{ 1.8 }	30
	15	0.9	5.3	4.5	26.5	{ 2.7 }
	20	1.1	11	6	35.3	{ 3.6 }
	25	1.1	11	7.5	44.1	{ 4.5 }
	30	1.2	15.9	9	53.0	{ 5.4 }
	35	1.2	15.9	10.5	61.8	{ 6.3 }
	40	1.3	23.1	12	70.6	{ 7.2 }
	45	1.3	23.1	13.5	79.4	{ 8.1 }
	50	1.4	33.3	15	88.3	{ 9 }
	60	1.4	33.3	18	105.9	{10.8 }
	70	1.5	48.0	18.9	111.8	{11.4 }	27
UH 10-	10	1.1	6.9	3	17.7	{ 1.8}	30
	15	1.1	6.9	4.5	26.5	{ 2.7}
	20	1.2	9.3	6	35.3	{ 3.6}
	25	1.2	9.3	7.5	44.1	{ 4.5}
	30	1.3	12.7	9	53.0	{ 5.4}
	35	1.4	17.5	10.5	61.8	{ 6.3}
	40	1.4	17.5	12	70.6	{ 7.2}
	45	1.5	23.8	13.5	79.4	{ 8.1}
	50	1.5	23.8	15	88.3	{ 9 }
	60	1.6	32.4	18	105.9	{10.8}
	70	1.7	44.2	21	123.6	{12.6}
UH 13-	15	1.5	9.2	4.5	44.1	{ 4.5}	30
	20	1.5	9.2	6	58.8	{ 6 }
	25	1.5	9.2	7.5	73.5	{ 7.5}
	30	1.8	18	9	88.3	{ 9 }
	35	1.8	18	10.5	103.0	{10.5}
	40	1.8	18	12	117.7	{12 }
	45	1.8	18	13.5	132.4	{13.5}
	50	2.0	28.5	15	147.0	{15 }
	60	2.1	36	18	176.5	{18 }
	70	2.2	45.1	21	205.9	{21 }
	80	2.2	45.1	20	196.1	{20 }	25
UH 16-	15	1.7	9.6	4.5	44.1	{ 4.5}	30
	20	1.9	14	6	58.8	{ 6 }
	25	1.9	14	7.5	73.5	{ 7.5}
	30	1.9	14	9	88.3	{ 9 }
	35	1.9	14	10.5	103.0	{10.5}
	40	2.2	25.1	12	117.7	{12 }
	45	2.2	25.1	13.5	132.4	{13.5}
	50	2.2	25.1	15	147.1	{15 }
	60	2.3	30.5	18	176.5	{18 }
	70	2.5	44.7	21	205.9	{21 }
	80	2.5	44.7	24	235.4	{24 }
UH 20-	25	2.3	13.8	7.5	110.8	{11.3}	30
	30	2.3	13.8	9	132.4	{13.5}
	35	2.5	18.8	10.5	154.9	{15.8}
	40	2.5	18.8	12	176.5	{18 }
	45	2.8	29.4	13.5	199.1	{20.3}
	50	2.8	29.4	15	220.6	{22.5}
	60	3	40.5	18	264.8	{27 }
	70	3	40.5	21	308.9	{31.5}
	80	3.2	54.4	24	353.0	{ 36 }

kgf (Load)=N/mm (Spring Constant) x0.101972xF (Deflection)
{kgf}=Nx0.101972

[ ! ]For Types marked with *, both ends are not ground.
[ ! ]The values of solid length are for reference only.
There may be some variations depending on the lot.
[ ! ]Usage Count: 1 Million Times

■Spring Constant
[ ! ]D12 is applicable to UY, UR, UF, UL and UBB Types only. D14 is applicable to UBB Type only.

Type

UV

UY

UR

UF

UL

UTT

UM

UH

UBB

D

2

0.05{0.005}

0.2{0.02}

0.3{0.03}

0.5{0.05}

3

N/mm
0.05
{kgf/mm}
{0.005}

N/mm
0.098
{kgf/mm}
{0.01}

N/mm
0.29
{kgf/mm}
{0.03}

N/mm
0.49
{kgf/mm}
{0.05}

N/mm
0.98
{kgf/mm}
{0.1}

N/mm
1.5
{kgf/mm}
{0.15}

4

2.0{0.2}

2.9{0.3}

4.9{0.5}

5

6

N/mm
2.0
{kgf/mm}
{0.2}

N/mm
2.9
{kgf/mm}
{0.3}

N/mm
5.9
{kgf/mm}
{0.6}

N/mm
9.8
{kgf/mm}
{1.0}

8

10

N/mm
0.2
{kgf/mm}
{0.02}

12

13

N/mm
9.8
{kgf/mm}
{1.0}

N/mm
19.6
{kgf/mm}
{2.0}

14

16

20

0.3{0.03}

0.5{0.05}

0.98{0.1}

2.9{0.3}

3.9{0.4}

4.9{0.5}

14.7{1.5}

29.4{3.0}

Fmax.

F=Lx70%

F=LxFa%

F=LxFa%

F=Lx45%

F=Lx40%

F=LxFa%

F=LxFa%

F=LxFa%

F=L×Fa%

Round Wire Coil Springs/Deflection 27%-30%/O.D. Referenced