Ondrives: Fasteners - Washers - U & U-S -: Curve Spring Washers

U U-S : Curve Spring Washers 8.41-20.32mm Bores

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U & U-S Type : 8.41 - 20.32 Inside Dia. Curve Spring Washers

U & U-S Type : 8.41 - 20.32 Inside Dia. Curve Spring Washers
* This is the long axis of the hole in the free position, providing a free fit on the nominal size screw or rod.
Do = Outside Diameter
Di = Inside Diameter
t = Thickness
Lo = Approx. Free Height
L1 = Loaded Height
P1 = Load at L1± 15% N

Discounts

1+ 0%

21+ 20%

51+ 30%

200+ 40%

500+ 45%

Part Number HC Steel	Part Number Stainless	Outside Dia. Do	Inside Dia. Di	Thickness t	Free Height Lo	Loaded Height L1	Load at L1 ±15% N P1	Cost Steel	Quantity	Add to Basket	Cost Stainless	Quantity	Add to Basket
-	U312-0075-S	12.45	8.41	0.19	1.96	1.04	10.01	-	-	-	£4.01
-	U312-0090-S	15.54	8.31	0.23	2.87	1.52	20.00	-	-	-	£4.01
U312-0110	-	12.45	8.41	0.28	1.57	0.89	20.00	£4.01			-	-	-
U312-0130	U312-0130-S	15.54	8.31	0.33	1.96	1.07	40.00	£4.01			£4.01
U312-0170	-	18.67	8.31	0.43	1.93	1.17	66.70	£4.48			-	-	-
U312-0210	-	18.67	8.31	0.53	1.78	1.14	100.10	£POA			-	-	-
-	U343-0100-S	17.07	9.22	0.25	3.05	1.60	24.50	-	-	-	£POA
U343-0150	-	17.07	9.22	0.38	2.06	1.19	48.90	£4.01			-	-	-
-	U375-0090-S	15.45	10.16	0.23	2.49	1.42	13.34	-	-	-	£4.01
-	U375-0100-S	17.07	10.16	0.25	2.92	1.50	20.00	-	-	-	£4.01
U375-0110	U375-0110-S	18.67	10.03	0.28	3.28	1.85	26.70	£4.48			£4.48
U375-0130	-	15.45	10.16	0.33	1.88	1.09	26.70	£4.01			-	-	-
U375-0150	-	17.07	10.16	0.38	2.01	1.17	40.00	£4.01			-	-	-
U375-0160	U375-0160-S	18.67	10.03	0.41	2.18	1.27	53.40	£4.48			£4.48
-	U437-0100-S	17.07	11.86	0.25	2.92	1.52	16.68	-	-	-	£4.01
U437-0150	U437-0150-S	17.07	11.86	0.38	2.13	1.14	33.40	£4.01			£4.01
U437-0120	-	21.77	11.73	0.30	3.86	2.01	33.40	£4.48			-	-	-
U437-0180	U437-0180-S	21.77	11.73	0.46	2.54	1.45	66.70	£4.48			£4.01
U437-0210	-	24.89	11.73	0.53	2.72	1.55	100.10	£4.48			-	-	-
U500-0113	-	20.20	13.48	0.29	3.28	1.75	22.20	£5.51			-	-	-
U500-0140	-	24.89	13.34	0.36	4.17	2.11	44.50	£5.51			-	-	-
U500-0170	-	20.20	13.48	0.43	2.49	1.37	44.50	£5.51			-	-	-
U500-0180	-	24.89	13.34	0.46	3.33	1.85	66.70	£5.51			-	-	-
U500-0210	-	24.49	13.34	0.53	2.79	1.60	89.00	£5.51			-	-	-
U500-0211	-	31.12	13.34	0.53	3.84	2.16	111.20	£5.51			-	-	-
U562-0120	-	21.77	15.19	0.30	3.68	1.88	24.50	£5.51			-	-	-
U562-0180	-	21.77	15.19	0.46	2.79	1.50	48.90	£5.51			-	-	-
U625-0140	-	24.89	16.84	0.36	4.29	2.34	31.10	£5.51			-	-	-
U625-0210	-	24.89	16.84	0.53	3.00	1.70	62.30	£5.51			-	-	-
U750-0160	-	28.02	20.32	0.41	4.70	2.49	35.60	£5.51			-	-	-
U750-0210	-	28.02	20.32	0.53	3.51	1.75	53.40	£5.51			-	-	-

Material
U: High Carbon Steel.
U-S: Stainless Steel (302).

Other Info.
Precision engineered curved washers are available from Ondrives in many stock sizes.
These washers are made of finely tempered spring steel with some sizes being made of stainless steel.
They come deburred and we have had all set removed during manufacture.
Curved washers exert relatively light thrust loads and are often used to absorb axial end play.

Finish: Standard finish for high carbon steel is plain finish. Stainless steel is supplied in plain finish.
On special order, high carbon steel washers may be mechanically plated, a process which substantially reduces the possibility of hydrogen embrittlement. Recommendations for specific applications will be made on request.

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PDF Documents : Catalogue Pages