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Round Wire Coil Springs/Deflection 45%/O.D. Referenced (Part Numbers)

On Sale Till 31/03/2025
Volume Discount

MISUMI

This is a standardized series so that the spring constant is constant for the same diameter.
[Features]
· UV/UY type, Maximum allowable deflection 75%
· UR type, Maximum allowable deflection 60%
· UF type, Maximum allowable deflection 40%

(i)Caution

Please check the content on our website as the PDF does not contain the most up-to-date information.

Part Number

Configured Part Number is shown.

[ M ]Material SUS304-WPB Spring Constant ±10%

Specifications

Part Number

UY4-25
UR13-60
UF8-70

■UV: 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
UV3-	5	0.15	1.1	3.5	0.18{0.018}	70
	10	0.18	2.5	7	0.35{0.036}
	15	0.18	2.5	10.5	0.53{0.054}
	20	0.20	3.3	14	0.70{0.071}
	25	0.23	6.2	17.5	0.88{0.089}
	30	0.23	6.2	21	1.05{0.107}
UV4-	5	0.18	1.2	3.5	0.18{0.018}
	10	0.20	1.7	7	0.35{0.036}
	15	0.23	3.0	10.5	0.53{0.054}
	20	0.23	3.0	14	0.70{0.071}
	25	0.26	4.9	17.5	0.88{0.089}
	30	0.26	4.9	21	1.05{0.107}
UV5-	5	0.20	1.2	3.5	0.18{0.018}
	10	0.23	1.8	7	0.35{0.036}
	15	0.26	2.9	10.5	0.53{0.054}
	20	0.29	4.5	14	0.70{0.071}
	25	0.29	4.5	17.5	0.88{0.089}
	30	0.29	4.5	21	1.05{0.107}
UV6-	10	0.26	2.0	7	0.35{0.036}
	15	0.30	3.3	10.5	0.53{0.054}
	20	0.30	3.3	14	0.70{0.071}
	25	0.35	6.5	17.5	0.88{0.089}
	30	0.35	6.5	21	1.05{0.107}
	35	0.35	6.5	24.5	1.23{0.125}
	40	0.35	6.5	28	1.40{0.143}
UV8-	10	0.30	1.9	7	0.35{0.036}
	15	0.35	3.2	10.5	0.53{0.054}
	20	0.35	3.2	14	0.70{0.071}
	25	0.40	5.6	17.5	0.88{0.089}
	30	0.40	5.6	21	1.05{0.107}
	35	0.40	5.6	24.5	1.23{0.125}
	40	0.45	9.3	28	1.40{0.143}
	45	0.45	9.3	31.5	1.58{0.161}
	50	0.45	9.3	35	1.75{0.179}

■UY: 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
UY2-	5	0.13	1.5	3	0.15{0.015}	60
	10	0.13	1.5	6	0.29{0.03}
	15	0.15	2.7	9	0.44{0.045}
	20	0.15	2.7	12	0.59{0.06}
	25	0.18	6.3	15	0.74{0.075}
	30	0.18	6.3	18	0.88{0.09}
UY3-	5	0.16	0.92	3.75	0.37{0.0375}	75
	10	0.2	2	7.5	0.74{0.075}
	15	0.23	3.45	11.25	1.10{0.1125}
	20	0.23	3.45	15	1.47{0.15}
	25	0.26	6.24	15	1.47{0.15}	60
	30	0.26	6.24	18	1.77{0.18}	60
UY4-	5	0.2	1.05	3.75	0.37{0.0375}	75
	10	0.23	1.84	7.5	0.74{0.075}
	15	0.26	2.86	11.25	1.10{0.1125}
	20	0.29	4.64	15	1.47{0.15}
	25	0.3	5.4	18.75	1.84{0.1875}
	30	0.3	5.4	22.5	2.26{0.23}
UY5-	5	0.23	1.15	3.75	0.37{0.0375}	75
	10	0.26	1.82	7.5	0.74{0.075}
	15	0.3	3.15	11.25	1.10{0.1125}
	20	0.3	3.15	15	1.47{0.15}
	25	0.32	4.16	18.75	1.84{0.1875}
	30	0.32	4.16	22.5	2.26{0.23}
	35	0.35	6	26.25	2.55{0.26}
	40	0.35	6	30	2.94{0.3}
UY6-	5	0.26	1.24	3.5	0.34{0.035}	70
	10	0.3	2.1	7.5	0.74{0.075}	75
	15	0.32	2.64	11.25	1.10{0.1125}
	20	0.35	3.85	15	1.47{0.15}
	25	0.38	5.32	18.75	1.84{0.1875}
	30	0.4	6.8	22.5	2.21{0.225}
	35	0.4	6.8	26.25	2.55{0.26}
	40	0.4	6.8	30	2.94{0.3}
UY8-	10	0.35	2.19	7.5	0.74{0.075}	75
	15	0.4	3.4	11.25	1.10{0.1125}
	20	0.4	3.4	15	1.47{0.15}
	25	0.45	5.4	18.75	1.84{0.1875}
	30	0.45	5.4	22.5	2.21{0.225}
	35	0.5	8.3	26.25	2.55{0.26}
	40	0.5	8.3	30	2.94{0.3}
	45	0.5	8.3	33.75	3.33{0.34}
	50	0.55	12.7	35	3.43{0.35}	70
UY10-	10	0.5	3.25	6	1.18{0.12}	60
	15	0.5	3.25	11.25	2.21{0.225}	75
	20	0.55	4.4	15	2.94{0.3}
	25	0.55	4.4	18.75	3.68{0.375}
	30	0.6	6.15	22.5	4.41{0.45}
	35	0.6	6.3	26.25	5.10{0.52}
	40	0.6	6.3	30	5.88{0.6}
	45	0.65	8.45	33.75	6.62{0.675}
	50	0.65	8.45	37.5	7.35{0.75}
UY12-	15	0.55	3.3	11.25	2.206{0.225}	75
	20	0.55	3.3	15	2.942{0.3}
	25	0.6	4.2	18.75	3.68{0.375}
	30	0.65	5.53	22.5	4.41{0.45}
	35	0.65	5.53	26.25	5.15{0.525}
	40	0.7	7.35	30	5.88{0.6}
	45	0.7	7.35	33.75	6.62{0.675}
	50	0.7	7.35	37.5	7.35{0.75}
	60	0.8	13.6	45	8.83{0.9}
	70	0.8	13.6	52.5	10.30{1.05}
	80	0.8	13.6	60	11.77{1.2}
UY13-	15	0.6	3.75	10.5	2.06{0.21}	70
	20	0.6	3.75	15	2.94{0.3}	75
	25	0.65	4.9	18.75	3.68{0.375}
	30	0.65	4.9	22.5	4.41{0.45}
	35	0.7	6.3	26.25	5.15{0.525}
	40	0.75	8.25	30	5.88{0.6}
	45	0.75	8.25	33.75	6.62{0.675}
	50	0.8	11.2	37.5	7.35{0.75}
	60	0.8	11.2	45	8.83{0.9}
	70	0.85	14.45	52.5	10.30{1.05}
	80	0.85	14.45	60	11.77{1.2}
UY16-	15	0.7	4.2	9	1.77{0.18}	60
	20	0.7	4.2	15	2.94{0.3}	75
	25	0.7	4.2	18.75	3.68{0.375}
	30	0.75	5.44	22.5	4.41{0.45}
	35	0.8	6.8	26.25	5.15{0.525}
	40	0.8	6.8	30	5.88{0.6}
	45	0.85	8.5	33.75	6.62{0.675}
	50	0.9	10.8	37.5	7.35{0.75}
	60	0.9	10.8	45	8.83{0.9}
	70	1	17	52.5	10.30{1.05}
	80	1	17	60	11.77{1.2}
UY20-	20	0.9	5.4	12	3.53{0.36}	60
	25	0.9	5.4	18.75	5.49{0.56}	75
	30	0.9	5.4	22.5	6.62{0.675}
	35	1	7.5	26.25	7.65{0.78}
	40	1	7.5	30	8.83{0.9}
	45	1	7.5	33.75	9.90{1.01}
	50	1.1	11	37.5	11.03{1.125}
	60	1.1	11	45	13.24{1.35}
	70	1.2	15.6	52.5	15.45{1.58}
	80	1.2	15.6	60	17.65{1.8}

■UR: 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
UR2-	5	0.18	2.0	2.5	0.49{0.05}	50
	10	0.18	2.0	5	0.98{0.1}
	15	0.23	6.0	7.5	1.5{0.15}
	20	0.23	6.0	10	2.0{0.2}
	25	0.26	11.2	12.5	2.5{0.25}
	30	0.26	11.2	15	2.9{0.3}
UR3-	5	0.23	1.6	3	0.9{0.09}	60
	10	0.25	2.1	6	1.8{0.18}
	15	0.3	4.5	9	2.6{0.27}
	20	0.3	4.5	12	3.5{0.36}
	25	0.32	6.4	15	4.4{0.45}
	30	0.32	6.4	18	5.3{0.54}
	35	0.35	9.8	21	6.2{0.63}
	40	0.35	9.8	24	7.1{0.72}
UR4-	5	0.26	1.4	3	0.9{0.09}	60
	10	0.29	2	6	1.8{0.18}
	15	0.32	3	9	2.6{0.27}
	20	0.38	6.1	12	3.5{0.36}
	25	0.38	6.1	15	4.4{0.45}
	30	0.40	8	18	5.3{0.54}
	35	0.40	8	21	6.2{0.63}
	40	0.45	14.4	24	7.1{0.72}
	45	0.45	14.4	27	7.9{0.81}
	50	0.45	14.4	30	8.8{0.9}
	60	0.5	23	36	10.6{1.08}
UR5-	5	0.3	1.65	3	0.9{0.09}	60
	10	0.35	2.71	6	1.8{0.18}
	15	0.38	3.61	9	2.6{0.27}
	20	0.38	3.61	12	3.5{0.36}
	25	0.45	7.43	15	4.4{0.45}
	30	0.45	7.43	18	5.3{0.54}
	35	0.5	12.25	21	6.2{0.63}
	40	0.5	12.25	24	7.1{0.72}
	45	0.5	12.25	27	7.9{0.81}
	50	0.55	19.53	30	8.8{0.9}
	60	0.55	19.53	36	10.6{1.08}
UR6-	5	0.32	1.5	3	0.9{0.09}	60
	10	0.4	3	6	1.8{0.18}
	15	0.4	3	9	2.6{0.27}
	20	0.5	7	12	3.5{0.36}
	25	0.5	7	15	4.4{0.45}
	30	0.5	7	18	5.3{0.54}
	35	0.55	11	21	6.2{0.63}
	40	0.55	11	24	7.1{0.72}
	45	0.6	17.4	27	7.9{0.81}
	50	0.6	17.4	30	8.8{0.9}
	60	0.65	23.4	36	10.6{1.08}
	70	0.65	23.4	42	12.4{1.26}
UR8-	10	0.45	2.6	6	1.8{0.18}	60
	15	0.5	3.6	9	2.6{0.27}
	20	0.5	3.6	12	3.5{0.36}
	25	0.55	5.9	15	4.4{0.45}
	30	0.65	10.4	18	5.3{0.54}
	35	0.65	10.4	21	6.2{0.63}
	40	0.7	15.4	24	7.1{0.72}
	45	0.75	21	22	6.3{0.66}	50
	50	0.75	21	27	7.8{0.81}	55
	60	0.8	27.6	31	8.9{0.93}	52
	70	0.8	27.6	39.9	11.6{1.20}	57
	80	0.8	27.6	48	14.1{1.44}	60
UR10-	10	0.55	3.3	6	1.8{0.18}	60
	15	0.6	4.2	9	2.6{0.27}
	20	0.65	6.2	12	3.5{0.36}
	25	0.65	6.2	15	4.4{0.45}
	30	0.7	8.4	18	5.3{0.54}
	35	0.7	8.4	21	6.2{0.63}
	40	0.7	8.4	24	7.1{0.72}
	45	0.8	15.2	27	7.9{0.81}
	50	0.8	15.2	30	8.8{0.9}
	60	0.85	20.4	36	10.6{1.08}
	70	0.85	20.4	42	12.4{1.26}
	80	0.85	20.4	48	14.1{1.44}
UR12-	15	0.6	3.5	9	2.6{0.27}	60
	20	0.7	5.6	12	3.5{0.36}
	25	0.7	5.6	15	4.4{0.45}
	30	0.8	9.6	18	5.3{0.54}
	35	0.8	9.6	21	6.2{0.63}
	40	0.8	9.6	24	7.1{0.72}
	45	0.9	16.2	27	7.9{0.81}
	50	0.9	16.2	30	8.8{0.9}
	60	0.9	16.2	36	10.6{1.08}
	70	1	26	42	12.4{1.26}
	80	1	26	48	14.1{1.44}
UR13-	15	0.7	4.7	9	2.6{0.27}	60
	20	0.7	4.7	12	3.5{0.36}
	25	0.8	8	15	4.4{0.45}
	30	0.8	8	18	5.3{0.54}
	35	0.8	8	21	6.2{0.63}
	40	0.9	12.8	24	7.1{0.72}
	45	0.9	12.8	27	7.9{0.81}
	50	0.9	12.8	30	8.8{0.9}
	60	1.0	21	36	10.6{1.08}
	70	1.0	21	42	12.4{1.26}
	80	1.0	21	48	14.1{1.44}
UR16-	15	0.75	4.3	9	2.6{0.27}	60
	20	0.8	5.4	12	3.5{0.36}
	25	0.9	7.7	15	4.4{0.45}
	30	0.9	7.7	18	5.3{0.54}
	35	1.0	12	21	6.2{0.63}
	40	1.0	12	24	7.1{0.72}
	45	1.0	12	27	7.9{0.81}
	50	1.1	19	30	8.8{0.9}
	60	1.1	19	36	10.6{1.08}
	70	1.2	26.4	42	12.4{1.26}
	80	1.2	26.4	48	14.1{1.44}
UR20-	20	1.0	6	12	5.9{0.6}	60
	25	1.1	7.7	15	7.4{0.75}
	30	1.1	7.7	18	8.8{0.9}
	35	1.2	10.8	21	10.3{1.05}
	40	1.2	10.8	24	11.8{1.2}
	45	1.3	14.3	27	13.2{1.35}
	50	1.3	14.3	30	14.7{1.5}
	60	1.4	19.6	36	17.7{1.8}
	70	1.4	19.6	42	20.6{2.1}
	80	1.5	27	48	23.5{2.4}

[ ! ]Both ends of UR Type springs 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

■UF: Fmax. (Allowable Deflection) =Lx45%

Part Number		d	Solid Length	F max.	N{kgf}max.	Unit Price
TypeD-L		d	Solid Length	F max.	N{kgf}max.	Unit Price
UF 2-	5*	0.2	2.35	2.25	0.66 {0.068}
	10*	0.2	2.35	4.5	1.3 {0.14}
	15*	0.26	7.8	6.7	2.0 {0.20}
	20*	0.26	7.8	9	2.7 {0.27}
	25*	0.29	13.6	11.2	3.3 {0.34}
	30*	0.29	13.6	13.5	4.0 {0.41}
UF 3-	5*	0.26	1.8	2.25	1.1{0.11}
	10*	0.32	4.5	4.5	2.2{0.22}
	15*	0.32	4.5	6.7	3.2{0.33}
	20*	0.35	6.3	9	4.4{0.45}
	25*	0.35	6.3	11.2	5.5{0.56}
	30*	0.4	12.4	13.5	6.6{0.67}
	35*	0.4	12.4	15.7	7.6{0.78}
	40*	0.4	12.4	18	8.8{0.9}
UF 4-	5*	0.32	2	2.25	1.1{0.11}
	10*	0.35	3	4.5	2.2{0.22}
	15*	0.4	5.2	6.7	3.2{0.33}
	20*	0.4	5.2	9	4.4{0.45}
	25*	0.45	9.5	11.2	5.5{0.56}
	30*	0.45	9.5	13.5	6.6{0.67}
	35*	0.5	15.5	15.7	7.6{0.78}
	40*	0.5	15.5	18	8.8{0.9}
	45*	0.5	15.5	20	9.8{1}
	50*	0.5	15.5	22.5	10.8{1.1}
	60*	0.55	22.6	27	12.7{1.3}
UF 5-	5*	0.35	2.01	2.25	1.1{0.11}
	10*	0.4	3.2	4.5	2.2{0.23}
	15*	0.4	3.2	6.75	3.3{0.34}
	20*	0.45	4.95	9	4.4{0.45}
	25*	0.45	4.95	11.25	5.5{0.56}
	30*	0.5	7.75	13.5	6.7{0.68}
	35*	0.5	7.75	15.75	7.7{0.79}
	40	0.6	19.5	18	8.8{0.9}
	45	0.6	19.5	20.25	10{1.01}
	50	0.6	19.5	22.5	11.2{1.13}
	60	0.65	27.95	27	13.4{1.35}
UF 6-	5*	0.4	2.2	2.25	1.1{0.11}
	10*	0.5	5	4.5	2.2{0.22}
	15*	0.55	7.7	6.7	3.2{0.33}
	20*	0.55	7.7	9	4.4{0.45}
	25	0.6	10.8	11.2	5.5{0.56}
	30	0.65	15.6	13.5	6.6{0.67}
	35	0.65	15.6	15.7	7.6{0.78}
	40	0.65	15.6	18	8.8{0.9}
	45	0.65	15.6	20	9.8{1}
	50	0.7	23.1	22.5	10.8{1.1}
	60	0.7	23.1	27	12.7{1.3}
	70	0.75	30.8	31.5	14.7{1.5}
UF 8-	10	0.6	5.4	4.5	2.2{0.22}
	15	0.65	7.2	6.7	3.2{0.33}
	20	0.7	10.5	9	4.4{0.45}
	25	0.7	10.5	11.2	5.5{0.56}
	30	0.75	13.5	13.5	6.6{0.67}
	35	0.75	13.5	15.7	7.6{0.78}
	40	0.8	18.4	18	8.8{0.9}
	45	0.8	18.4	20	9.8{1}
	50	0.8	18.4	22.5	10.8{1.1}
	60	0.85	26.4	27	12.7{1.3}
	70	0.85	26.4	31.5	14.7{1.5}
	80	0.85	26.4	36	17.7{1.8}
UF10-	10	0.65	4.6	4.5	2.2{0.22}
	15	0.65	4.6	6.7	3.2{0.33}
	20	0.8	9.6	9	4.4{0.45}
	25	0.8	9.6	11.2	5.5{0.56}
	30	0.85	12.8	13.5	6.6{0.67}
	35	0.85	12.8	15.7	7.6{0.78}
	40	0.9	17	18	8.8{0.9}
	45	0.9	17	20	9.8{1}
	50	0.9	17	22.5	10.8{1.1}
	60	1.0	28	27	12.7{1.3}
	70	1.0	28	31.5	14.7{1.5}
	80	1.0	28	36	17.7{1.8}
UF12-	15	0.8	6.8	6.7	3.2{0.33}
	20	0.8	6.8	9	4.4{0.45}
	25	0.8	6.8	11.2	5.5{0.56}
	30	0.9	10.8	13.5	6.6{0.67}
	35	1.0	17	15.7	7.6{0.78}
	40	1.0	17	18	8.8{0.9}
	45	1.0	17	20	9.8{1}
	50	1.1	26.4	22.5	10.8{1.1}
	60	1.1	26.4	27	12.7{1.3}
	70	1.1	26.4	31.5	14.7{1.5}
	80	1.2	39.6	36	17.7{1.8}
UF13-	15	0.8	5.6	6.7	3.2{0.33}
	20	0.8	5.6	9	4.4{0.45}
	25	0.85	7.2	11.2	5.5{0.56}
	30	1.0	14	13.5	6.6{0.67}
	35	1.0	14	15.7	7.6{0.78}
	40	1.0	14	18	8.8{0.9}
	45	1.1	21.5	20	9.8{1}
	50	1.1	21.5	22.5	10.8{1.1}
	60	1.1	21.5	27	12.7{1.3}
	70	1.2	30	31.5	14.7{1.5}
	80	1.2	30	36	17.7{1.8}
UF16-	15	0.9	5.6	6.7	3.2{0.33}
	20	1.0	7.7	9	4.4{0.45}
	25	1.0	7.7	11.2	5.5{0.56}
	30	1.1	12.1	13.5	6.6{0.67}
	35	1.1	12.1	15.7	7.6{0.78}
	40	1.2	18	18	8.8{0.9}
	45	1.2	18	20	9.8{1}
	50	1.2	18	22.5	10.8{1.1}
	60	1.3	26	27	12.7{1.3}
	70	1.3	26	31.5	14.7{1.5}
	80	1.4	35	36	17.7{1.8}
UF20-	20	1.2	7.2	9	8.8{0.9}
	25	1.3	9.1	11.25	11.1{1.13}
	30	1.4	11.9	13.5	13.2{1.35}
	35	1.4	11.9	15.75	15.5{1.58}
	40	1.5	15.8	18	17.7{1.8}
	45	1.5	15.8	20.25	19.9{2.03}
	50	1.6	20.8	22.5	22.1{2.25}
	60	1.6	20.8	27	26.5{2.7}
	70	1.7	26.4	31.5	30.9{3.15}
	80	1.7	26.4	36	35.3{3.6}

kgf (Load)=N/mm (Spring Constant) x0.101972xF (Deflection)
{kgf}=Nx0.101972
[ ! ]Both ends of * marked UF Type springs 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

UTT

UBB

0.05{0.005}

0.2{0.02}

0.3{0.03}

0.5{0.05}

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}

1.5{0.15}

2.0
{0.2}

2.9{0.3}

4.9{0.5}

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}

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

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

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

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=Lx75%

F=Lx60%

F=Lx45%

F=Lx40%

F=Lx35%

F=Lx30%

F=Lx25%

Part Number

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Part Number
UF2-5
UF2-10
UF2-15
UF2-20
UF2-25
UF2-30
UF3-5
UF3-10
UF3-15
UF3-20
UF3-25
UF3-30
UF3-35
UF3-40
UF4-5
UF4-10
UF4-15
UF4-20
UF4-25
UF4-30
UF4-35
UF4-40
UF4-45
UF4-50
UF4-60
UF5-5
UF5-10
UF5-15
UF5-20
UF5-25
UF5-30
UF5-35
UF5-40
UF5-45
UF5-50
UF5-60
UF6-5
UF6-10
UF6-15
UF6-20
UF6-25
UF6-30
UF6-35
UF6-40
UF6-45
UF6-50
UF6-60
UF6-70
UF8-10
UF8-15
UF8-20
UF8-25
UF8-30
UF8-35
UF8-40
UF8-45
UF8-50
UF8-60
UF8-70
UF8-80
UF10-10
UF10-15
UF10-20
UF10-25
UF10-30
UF10-35
UF10-40
UF10-45
UF10-50
UF10-60
UF10-70
UF10-80
UF12-15
UF12-20
UF12-25
UF12-30
UF12-35
UF12-40
UF12-45
UF12-50
UF12-60
UF12-70
UF12-80
UF13-15
UF13-20
UF13-25
UF13-30
UF13-35
UF13-40
UF13-45

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Free Length L (mm)	Outer Dia. D (or D1) (Ø)	Height with the max. load applied ([Free Length] – [Allowable Deflection]) (mm)	Spring Constant (N/mm)	Allowable Load (Configurable Range) (N)	Max. Load (N)	Wire Dia. (Ø)	End Surface Status	Solid Length (mm)	Allowable Deflection (mm)
SGD 4.29	1 Piece(s)	Available	Same day	10	5	2	2.75	0.3	~1.50	0.66	0.2	Without Grinding	2.35	2.25
SGD 4.88	1 Piece(s)	Available	Same day	10	10	2	5.5	0.3	~1.50	1.3	0.2	Without Grinding	2.35	4.5
SGD 4.88	1 Piece(s)	Available	Same day	10	15	2	8.3	0.3	1.51~4.50	2	0.26	Without Grinding	7.8	6.7
SGD 4.88 SGD 0.98	1 Piece(s)	Available	Same day	10	20	2	11	0.3	1.51~4.50	2.7	0.26	Without Grinding	7.8	9
SGD 5.90	1 Piece(s)	Available	4 Day(s) or more	10	25	2	13.8	0.3	1.51~4.50	3.3	0.29	Without Grinding	13.6	11.2
SGD 5.90	1 Piece(s)	Available	4 Day(s) or more	10	30	2	16.5	0.3	1.51~4.50	4	0.29	Without Grinding	13.6	13.5
SGD 2.19	1 Piece(s)	Available	Same day	10	5	3	2.75	0.49	~1.50	1.1	0.26	Without Grinding	1.8	2.25
SGD 2.19	1 Piece(s)	Available	Same day	10	10	3	5.5	0.49	1.51~4.50	2.2	0.32	Without Grinding	3.5	4.5
SGD 2.19	1 Piece(s)	Available	Same day	10	15	3	8.3	0.49	1.51~4.50	3.2	0.32	Without Grinding	3.5	6.7
SGD 2.19	1 Piece(s)	Available	Same day	10	20	3	11	0.49	1.51~4.50	4.4	0.35	Without Grinding	6.3	9
SGD 2.36	1 Piece(s)	Available	Same day	10	25	3	13.8	0.49	4.51~8.50	5.5	0.35	Without Grinding	6.3	11.2
SGD 2.36	1 Piece(s)	Available	4 Day(s) or more	10	30	3	16.5	0.49	4.51~8.50	6.6	0.4	Without Grinding	12.4	13.5
SGD 2.36	1 Piece(s)	Available	4 Day(s) or more	10	35	3	19.3	0.49	4.51~8.50	7.6	0.4	Without Grinding	12.4	15.7
SGD 2.36	1 Piece(s)	Available	4 Day(s) or more	10	40	3	22	0.49	8.51~16.00	8.8	0.4	Without Grinding	12.4	18
SGD 2.36	1 Piece(s)	Available	Same day	10	5	4	2.75	0.49	~1.50	1.1	0.32	Without Grinding	2	2.25
SGD 2.36	1 Piece(s)	Available	Same day	10	10	4	5.5	0.49	1.51~4.50	2.2	0.35	Without Grinding	3	4.5
SGD 2.36	1 Piece(s)	Available	Same day	10	15	4	8.3	0.49	1.51~4.50	3.2	0.4	Without Grinding	5.2	6.7
SGD 2.36	1 Piece(s)	Available	Same day	10	20	4	11	0.49	1.51~4.50	4.4	0.4	Without Grinding	5.2	9
SGD 2.45 SGD 0.49	1 Piece(s)	Available	Same day	10	25	4	13.8	0.49	4.51~8.50	5.5	0.45	Without Grinding	9.5	11.2
SGD 2.45	1 Piece(s)	Available	Same day	10	30	4	16.5	0.49	4.51~8.50	6.6	0.45	Without Grinding	9.5	13.5
SGD 2.45	1 Piece(s)	Available	4 Day(s) or more	10	35	4	19.3	0.49	4.51~8.50	7.6	0.5	Without Grinding	15.5	15.7
SGD 2.45	1 Piece(s)	Available	4 Day(s) or more	10	40	4	22	0.49	8.51~16.00	8.8	0.5	Without Grinding	15.5	18
SGD 2.45	1 Piece(s)	Available	4 Day(s) or more	10	45	4	25	0.49	8.51~16.00	9.8	0.5	Without Grinding	15.5	20
SGD 2.45	1 Piece(s)	Available	4 Day(s) or more	10	50	4	27.5	0.49	8.51~16.00	10.8	0.5	Without Grinding	15.5	22.5
SGD 2.45	1 Piece(s)	Available	4 Day(s) or more	10	60	4	33	0.49	8.51~16.00	12.7	0.55	Without Grinding	22.6	27
SGD 2.45 SGD 0.49	1 Piece(s)	Available	Same day	10	5	5	2.75	0.49	~1.50	1.1	0.35	Without Grinding	2.01	2.25
SGD 2.45	1 Piece(s)	Available	Same day	10	10	5	5.5	0.49	1.51~4.50	2.2	0.4	Without Grinding	3.2	4.5
SGD 2.45	1 Piece(s)	Available	Same day	10	15	5	8.25	0.49	1.51~4.50	3.3	0.4	Without Grinding	3.2	6.75
SGD 2.45	1 Piece(s)	Available	Same day	10	20	5	11	0.49	1.51~4.50	4.4	0.45	Without Grinding	4.95	9
SGD 2.61	1 Piece(s)	Available	Same day	10	25	5	13.75	0.49	4.51~8.50	5.5	0.45	Without Grinding	4.95	11.25
SGD 2.61	1 Piece(s)	Available	Same day	10	30	5	16.5	0.49	4.51~8.50	6.7	0.5	Without Grinding	7.75	13.5
SGD 2.61	1 Piece(s)	Available	Same day	10	35	5	19.25	0.49	4.51~8.50	7.7	0.5	Without Grinding	7.75	15.75
SGD 2.61	1 Piece(s)	Available	4 Day(s) or more	10	40	5	22	0.49	8.51~16.00	8.8	0.6	With Grinding	19.5	18
SGD 2.61	1 Piece(s)	Available	4 Day(s) or more	10	45	5	24.75	0.49	8.51~16.00	10	0.6	With Grinding	19.5	20.25
SGD 2.61 SGD 0.52	1 Piece(s)	Available	Same day	10	50	5	27.5	0.49	8.51~16.00	11.2	0.6	With Grinding	19.5	22.5
SGD 2.95	1 Piece(s)	Available	4 Day(s) or more	10	60	5	33	0.49	8.51~16.00	13.4	0.65	With Grinding	27.95	27
SGD 2.45	1 Piece(s)	Available	Same day	10	5	6	2.75	0.49	~1.50	1.1	0.4	Without Grinding	2.2	2.25
SGD 2.45	1 Piece(s)	Available	Same day	10	10	6	5.5	0.49	1.51~4.50	2.2	0.5	Without Grinding	5	4.5
SGD 2.45	1 Piece(s)	Available	Same day	10	15	6	8.3	0.49	1.51~4.50	3.2	0.55	Without Grinding	7.7	6.7
SGD 2.45	1 Piece(s)	Available	Same day	10	20	6	11	0.49	1.51~4.50	4.4	0.55	Without Grinding	7.7	9
SGD 2.61	1 Piece(s)	Available	Same day	10	25	6	13.8	0.49	4.51~8.50	5.5	0.6	With Grinding	10.8	11.2
SGD 2.61	1 Piece(s)	Available	Same day	10	30	6	16.5	0.49	4.51~8.50	6.6	0.65	With Grinding	15.6	13.5
SGD 2.61	1 Piece(s)	Available	Same day	10	35	6	19.3	0.49	4.51~8.50	7.6	0.65	With Grinding	15.6	15.7
SGD 2.61	1 Piece(s)	Available	Same day	10	40	6	22	0.49	8.51~16.00	8.8	0.65	With Grinding	15.6	18
SGD 2.61 SGD 0.52	1 Piece(s)	Available	Same day	10	45	6	25	0.49	8.51~16.00	9.8	0.65	With Grinding	15.6	20
SGD 2.61	1 Piece(s)	Available	4 Day(s) or more	10	50	6	27.5	0.49	8.51~16.00	10.8	0.7	With Grinding	23.1	22.5
SGD 2.95	1 Piece(s)	Available	4 Day(s) or more	10	60	6	33	0.49	8.51~16.00	12.7	0.7	With Grinding	23.1	27
SGD 2.95	1 Piece(s)	Available	4 Day(s) or more	10	70	6	38.5	0.49	8.51~16.00	14.7	0.75	With Grinding	30.8	31.5
SGD 2.95	1 Piece(s)	Available	Same day	10	10	8	5.5	0.49	1.51~4.50	2.2	0.6	With Grinding	5.4	4.5
SGD 2.95	1 Piece(s)	Available	Same day	10	15	8	8.3	0.49	1.51~4.50	3.2	0.65	With Grinding	7.2	6.7
SGD 2.95	1 Piece(s)	Available	Same day	10	20	8	11	0.49	1.51~4.50	4.4	0.7	With Grinding	10.5	9
SGD 3.03	1 Piece(s)	Available	Same day	10	25	8	13.8	0.49	4.51~8.50	5.5	0.7	With Grinding	10.5	11.2
SGD 3.03	1 Piece(s)	Available	Same day	10	30	8	16.5	0.49	4.51~8.50	6.6	0.75	With Grinding	13.5	13.5
SGD 3.03	1 Piece(s)	Available	Same day	10	35	8	19.3	0.49	4.51~8.50	7.6	0.75	With Grinding	13.5	15.7
SGD 3.03	1 Piece(s)	Available	Same day	10	40	8	22	0.49	8.51~16.00	8.8	0.8	With Grinding	18.4	18
SGD 3.03	1 Piece(s)	Available	Same day	10	45	8	25	0.49	8.51~16.00	9.8	0.8	With Grinding	18.4	20
SGD 3.03	1 Piece(s)	Available	Same day	10	50	8	27.5	0.49	8.51~16.00	10.8	0.8	With Grinding	18.4	22.5
SGD 3.20 SGD 0.64	1 Piece(s)	Available	Same day	10	60	8	33	0.49	8.51~16.00	12.7	0.85	With Grinding	26.4	27
SGD 3.20 SGD 0.64	1 Piece(s)	Available	Same day	10	70	8	38.5	0.49	8.51~16.00	14.7	0.85	With Grinding	26.4	31.5
SGD 3.20	1 Piece(s)	Available	4 Day(s) or more	10	80	8	44	0.49	16.01~30.00	17.7	0.85	With Grinding	26.4	36
SGD 3.20	1 Piece(s)	Available	Same day	10	10	10	5.5	0.49	1.51~4.50	2.2	0.65	With Grinding	4.6	4.5
SGD 3.20	1 Piece(s)	Available	Same day	10	15	10	8.3	0.49	1.51~4.50	3.2	0.65	With Grinding	4.6	6.7
SGD 3.20	1 Piece(s)	Available	Same day	10	20	10	11	0.49	1.51~4.50	4.4	0.8	With Grinding	9.6	9
SGD 3.20	1 Piece(s)	Available	Same day	10	25	10	13.8	0.49	4.51~8.50	5.5	0.8	With Grinding	9.6	11.2
SGD 3.20	1 Piece(s)	Available	Same day	10	30	10	16.5	0.49	4.51~8.50	6.6	0.85	With Grinding	12.8	13.5
SGD 3.20	1 Piece(s)	Available	Same day	10	35	10	19.3	0.49	4.51~8.50	7.6	0.85	With Grinding	12.8	15.7
SGD 3.20	1 Piece(s)	Available	Same day	10	40	10	22	0.49	8.51~16.00	8.8	0.9	With Grinding	17	18
SGD 3.20	1 Piece(s)	Available	4 Day(s) or more	10	45	10	25	0.49	8.51~16.00	9.8	0.9	With Grinding	17	20
SGD 3.20	1 Piece(s)	Available	Same day	10	50	10	27.5	0.49	8.51~16.00	10.8	0.9	With Grinding	17	22.5
SGD 3.37 SGD 0.67	1 Piece(s)	Available	Same day	10	60	10	33	0.49	8.51~16.00	12.7	1	With Grinding	28	27
SGD 3.37	1 Piece(s)	Available	4 Day(s) or more	10	70	10	38.5	0.49	8.51~16.00	14.7	1	With Grinding	28	31.5
SGD 3.37	1 Piece(s)	Available	4 Day(s) or more	10	80	10	44	0.49	16.01~30.00	17.7	1	With Grinding	28	36
SGD 5.90	1 Piece(s)	Available	Same day	10	15	12	8.3	0.49	1.51~4.50	3.2	0.8	With Grinding	6.8	6.7
SGD 5.90	1 Piece(s)	Available	Same day	10	20	12	11	0.49	1.51~4.50	4.4	0.8	With Grinding	6.8	9
SGD 5.90	1 Piece(s)	Available	Same day	10	25	12	13.8	0.49	4.51~8.50	5.5	0.8	With Grinding	6.8	11.2
SGD 5.90	1 Piece(s)	Available	Same day	10	30	12	16.5	0.49	4.51~8.50	6.6	0.9	With Grinding	10.8	13.5
SGD 6.15	1 Piece(s)	Available	4 Day(s) or more	10	35	12	19.3	0.49	4.51~8.50	7.6	1	With Grinding	17	15.7
SGD 6.15	1 Piece(s)	Available	4 Day(s) or more	10	40	12	22	0.49	8.51~16.00	8.8	1	With Grinding	17	18
SGD 6.15	1 Piece(s)	Available	4 Day(s) or more	10	45	12	25	0.49	8.51~16.00	9.8	1	With Grinding	17	20
SGD 6.15	1 Piece(s)	Available	4 Day(s) or more	10	50	12	27.5	0.49	8.51~16.00	10.8	1.1	With Grinding	26.4	22.5
SGD 6.49	1 Piece(s)	Available	4 Day(s) or more	10	60	12	33	0.49	8.51~16.00	12.7	1.1	With Grinding	26.4	27
SGD 7.08	1 Piece(s)	Available	4 Day(s) or more	10	70	12	38.5	0.49	8.51~16.00	14.7	1.2	With Grinding	26.4	31.5
SGD 7.08	1 Piece(s)	Available	4 Day(s) or more	10	80	12	44	0.49	16.01~30.00	17.7	1.2	With Grinding	39.6	36
SGD 3.37	1 Piece(s)	Available	Same day	10	15	13	8.3	0.49	1.51~4.50	3.2	0.8	With Grinding	5.6	6.7
SGD 3.37	1 Piece(s)	Available	Same day	10	20	13	11	0.49	1.51~4.50	4.4	0.8	With Grinding	5.6	9
SGD 3.37	1 Piece(s)	Available	4 Day(s) or more	10	25	13	13.8	0.49	4.51~8.50	5.5	0.85	With Grinding	7.2	11.2
SGD 3.37	1 Piece(s)	Available	Same day	10	30	13	16.5	0.49	4.51~8.50	6.6	1	With Grinding	14	13.5
SGD 3.37	1 Piece(s)	Available	Same day	10	35	13	19.3	0.49	4.51~8.50	7.6	1	With Grinding	14	15.7
SGD 3.37	1 Piece(s)	Available	Same day	10	40	13	22	0.49	8.51~16.00	8.8	1	With Grinding	14	18
SGD 3.37	1 Piece(s)	Available	4 Day(s) or more	10	45	13	25	0.49	8.51~16.00	9.8	1.1	With Grinding	21.5	20

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359 Part Numbers

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Specification/Dimensions

Free Length L(mm)
5

10

15

20

25

30

35

40

45

50

60

70

80
Clear
Outer Dia. D (or D1)(Ø)
2

3

4

5

6

8

10

12

13

16

20
Clear
Height with the max. load applied ([Free Length] – [Allowable Deflection])(mm)
1.25

1.5

2

2.5

2.75

3

3.75

4

4.5

5

5.5

6

6.25

7.5

8

8.25

8.3

8.75

9

10

10.5

11

11.25

12

12.5

13.5

13.75

13.8

14

15

16

16.5

17.5

18

19.25

19.3

20

22

23

24

24.75

25

27.5

28

29

30.1$30

32

33

38.5

44
Clear
Spring Constant(N/mm)
0.05

0.098

0.2

0.29

0.3

0.49

0.5

0.98
Clear
Allowable Load (Configurable Range)(N)
- ~1.50
- 1.51~4.50
- 4.51~8.50
- 8.51~16.00
- 16.01~30.00
- 30.01~50.00
Clear
Max. Load(N)
0.15

0.18

0.29

0.34

0.35

0.37

0.44

0.49

0.53

0.59

0.66

0.7

0.74

0.88

0.9

0.98

1.05

1.1

1.18

1.23

1.3

1.4

1.47

1.5

1.58

1.75

1.77

1.8

1.84

2

2.06

2.2

2.206

2.21

2.26

2.5

2.55

2.6

2.7

2.9

2.94

2.942

3.2

3.3

3.33

3.43

3.5

3.53

3.68

4

4.4

4.41

5.1

5.15

5.3

5.49

5.5

5.88

5.9

6.2

6.3

6.6

6.62

6.7

7.1

7.35

7.4

7.6

7.65

7.7

7.8

7.9

8.8

8.83

8.9

9.8

9.9

10

10.3

10.6

10.8

11.03

11.1

11.2

11.6

11.77

11.8

12.4

12.7

13.2

13.24

13.4

14.1

14.7

15.45

15.5

17.65

17.7

19.9

20.6

22.1

23.5

26.5

30.9

35.3
Clear
Wire Dia.(Ø)
0.13

0.15

0.16

0.18

0.2

0.23

0.25

0.26

0.29

0.3

0.32

0.35

0.38

0.4

0.45

0.5

0.55

0.6

0.65

0.7

0.75

0.8

0.85

0.9

1

1.1

1.2

1.3

1.4

1.5

1.6

1.7
Clear
End Surface Status
- With Grinding
- Without Grinding
Clear
Solid Length(mm)
0.92

1.05

1.1

1.15

1.2

1.24

1.4

1.5

1.6

1.65

1.7

1.8

1.82

1.84

1.9

2

2.01

2.1

2.19

2.2

2.35

2.5

2.6

2.64

2.7

2.71

2.86

2.9

3

3.15

3.2

3.25

3.3

3.4

3.45

3.5

3.6

3.61

3.75

3.85

4.16

4.2

4.3

4.4

4.5

4.6

4.64

4.7

4.9

4.95

5

5.2

5.32

5.4

5.44

5.53

5.6

5.9

6

6.1

6.15

6.2

6.24

6.3

6.4

6.5

6.8

7

7.2

7.35

7.43

7.5

7.7

7.75

7.8

8

8.25

8.3

8.4

8.45

8.5

9.1

9.3

9.5

9.6

9.8

10.4

10.5

10.8

11

11.2

11.9

12

12.1

12.25

12.4

12.7

12.8

13.5

13.6

14

14.3

14.4

14.45

15.2

15.4

15.5

15.6

15.8

16.2

17

17.4

18

18.4

19

19.5

19.53

19.6

20.4

20.8

21

21.5

22.6

23

23.1

23.4

26

26.4

27

27.6

27.95

28

30

30.8

35

39.6
Clear
type
- UF
- UR
- UV
- UY
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day

4 Day(s) or Less
Clear

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The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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Round Wire Coil Springs/Deflection 45%/O.D. Referenced (Part Numbers)

(i)Caution

Specifications

Part Number

Configure

Specification/Dimensions

Free Length L(mm)

Outer Dia. D (or D1)(Ø)

Height with the max. load applied ([Free Length] – [Allowable Deflection])(mm)

Spring Constant(N/mm)

Allowable Load (Configurable Range)(N)

Max. Load(N)

Wire Dia.(Ø)

End Surface Status

Solid Length(mm)

type

CAD

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Specify Alterations

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