Tianjin Fuyote Technology Co.,Ltd.
Tianjin Fuyote Technology Co.,Ltd.
DO Floating Seal

DO Floating Seal

Duo-cone seal also called O-ring face seal and DO floating seal. DO floating seal consists of two separate metal seal rings and two o-rings which provide elastic compression within housing bores.


Fuyote is one of the most experienced duo cone seal manufacturers in the industry with an 8000 square meter plant area. Utilizing durable materials and precise engineering, our duo cone seals offer longevity, reliability, and optimal performance in demanding environments. Please check out the duo cone seal sizes and catalog below!

Contact Us
Duo Cone Seal Catalog
Product Overview
Design Features
Specification 1
Specification 2
Specification 3
Packing & Shipping
Product Warning
Operating Requirements
Floating Seal Installation

What Is A Duo Cone Seal?


Duo Cone seals are specialized floating seals used in heavy machinery and equipment. They are mainly used to prevent the leakage of lubricants and fluids, keep damaging contamination outside, and maintain effective sealing in heavy machinery and industrial equipment operating in demanding conditions. A duo cone seal consists of two identical metal seal rings and two elastomeric o-rings. The metal seal rings of Fuyote's Duo Cone Seals are made of high-alloy cast iron, with precision-machined surfaces. These rings are designed to fit closely together when installed into a housing or a bore.



Overview of Fuyote DO Floating Seals


  • Fuyote DO floating seal available sizes: 35~1105mm

  • Metal Seal Ring Material: Fuyote's metal seal rings are manufactured of high alloy cast iron. Fuyote offers two kinds of material for different applications.

  • Materials for o-ringsO-ring material defines the application temperatures and pressure. Fuyote offers three kinds of materials for o-rings: NBR, HNBR, and Silicone. 

  • Advantages of duo-cone seals: lower price point and a wide range of applications.

  • Primary Applications: mining equipment, off-road and tracked vehicles, conveyors and construction equipment; agricultural machinery.

Benefits of Fuyote's Duo-Cone Seals


  • Wear and corrosion resistant, long service life, maintenance free.

  • Exceptional sealing capacity against exterior contaminates such as abrasive media, moisture, and chemicals, oil, and grease.

  • Self-centering to compensate for shaft eccentricity or misalignment.

  • Oil lubricates and cools the seal faces, allowing for higher rotating speeds.


How Does A Duo Cone Seal Work?


Two metal seal rings interact with each other to form a contact sealing face perpendicular to the axis. As o-rings transfer pressure from the housing to seal rings, allowing one metal seal ring rotates with the housing while the other remains stable. Two mechanical face seals thus are in a state of relative motion.

Two relatively moving face seals create an oil film on the surface of the contact band. This oil film is the key to sealing. During rotating, the mating faces form a contact band that is approximately 0.2mm (0.008") to 0.5mm (0.02") wide retaining the oil lubricant and resisting foreign material. As wearing occurs, the contact band will move inwards. However, o-ring releases elastic compensation, keeping mechanical face seals in a precise position to maintain their stability.


Innovation in Design for Longevity and Reliability


Fuyote design, in which only one metallic seal rotates, creates a leakproof seal, requires no maintenance, provides exceptional service life, and compensates for vibrations, misalignment, eccentricity, assembly wear, and other conditions. The following shows FUYOTE product Advantages.


  • Black seal faces decrease rusting and increase o-ring gripping ability, eliminating o-ring sliding. For customers who require a white seal face, Fuyote offers anti-skid stripes to achieve the same effect.

  • Cross-hatched grooves on seal contact bands ensure sufficient oil flow and heat management, enabling the seals to operate in the toughest industrial conditions. At the same time, it also solves the problem that rubber oil seals cannot solve.

  • All products' end grinding surfaces are made of a particular process. It ensures spherical angular stability of products in the same batch and avoids premature sealing failure due to the mismatch of different angular products.

  • FUYOTE designs and manufactures o-rings to match our own products. High elasticity increases and prevents wearing, making the products resistant.

  • Spherical cant design benefits the two meshing boundary lines coincide. Allow self-centering to compensate for shaft eccentricity or misalignment.



Fuyote Duo Cone Seal Sizes Chart


DO Floating Seal



Drawing No.Seal SetShaft(Max)   dHousing Bore
PN#A=DIDHdhdedft1t2mint3rTol.
for
CS0220
35.022.020.018.037.737.029.09.010.51.82.00.10
CS0340
45.034.014.030.047.046.542.06.58.01.01.00.10
CS0380
51.038.020.035.053.753.046.09.011.01.82.00.10
CS0390
50.039.014.035.052.051.546.06.58.01.01.00.10
CS0450
58.045.021.041.061.660.853.410.012.01.82.50.10
CS0451
59.045.026.841.062.361.553.013.515.52.72.80.10
CS0460
59.046.020.043.061.661.053.09.011.02.02.50.10
CS0461
59.046.020.042.062.561.856.08.510.51.82.00.10
CS0480
62.048.025.045.068.067.258.012.014.02.03.00.10
CS0540
68.054.024.051.073.07262.011.013.52.85.00.10
CS0555
70.055.522.052.073.873.165.510.011.52.45.00.10
CS0556
70.055.522.052.074.874.166.510.011.52.45.00.10
CS0560
70.056.025.053.076.075.266.012.514.52.03.00.10
CS0575
74.057.526.054.578.077.066.013.015.02.03.00.10
CS0580
75.058.027.055.079.478.667.013.515.52.03.00.10
CS0581
77.558.036.055.081.580.568.515.220.53.54.80.10
CS0582
75.557.826.055.080.079.167.013.015.02.03.00.10
CS0600
74.060.020.657.078.477.470.09.011.01.92.50.10
CS0602
73.060.220.057.076.575.869.08.510.51.82.00.10
CS0610
83.061.030.058.085.284.275.014.517.02.85.00.10
CS0611
73.061.017.658.075.875.566.86.57.51.01.40.10
CS0621
73.562.016.058.076.776.170.08.29.22.31.50.10
CS0630
80.563.026.060.084.083.272.011.513.02.55.00.10
CS0635
82.563.531.860.586.886.074.514.517.52.85.00.10
CS0640
78.064.025.061.084.683.874.012.514.52.03.00.10
CS0660
86.066.028.063.090.089.278.013.515.52.03.00.10
CS0670
80.067.020.064.083.482.776.88.510.51.82.00.10
CS0675
86.567.531.864.591.090.078.014.517.02.85.00.10
CS0685
89.068.524.065.592.591.583.011.013.52.85.00.10
CS0690
84.069.024.066.089.688.678.011.013.52.85.00.10
CS0700
90.070.028.066.095.094.084.013.515.52.03.00.10
CS0710
84.071.020.068.087.486.780.88.510.51.82.00.10
CS0730
92.073.031.870.096.595.584.015.017.02.85.00.10
CS0731
92.173.032.070.096.095.283.015.217.02.85.00.10
CS0738
88.073.822.070.589.889.681.09.511.02.33.00.10
CS0740
86.474.022.071.091.590.581.09.511.02.33.00.10
CS0741
87.074.021.071.095.094.083.010.011.52.04.00.10
CS0746
93.074.629.072.0100.799.984.015.017.02.85.00.10
CS0760
94.076.029.072.0101.4100.488.014.516.52.05.00.10
CS0775
87.577.514.074.590.790.285.57.08.01.51.50.10
CS0795
92.579.520.076.596.095.388.08.510.51.82.00.10
CS0800
100.080.029.077.0105.0104.092.014.516.52.03.00.10
CS0801
100.080.029.077.0104.0103.292.014.516.52.03.00.10
CS0810
98.081.028.078.0102.3101.391.012.514.52.85.00.10
CS0820
98.082.022.079.0102.3101.391.09.011.02.33.00.10
CS0830
102.083.028.080.0105.4104.594.012.515.02.85.00.10
CS0845
104.584.532.081.0109.0108.099.014.517.02.85.00.10
CS0880
108.088.024.085.0111.5110.5102.011.013.52.85.00.10
CS0890
108.089.029.086.0112.0111.0100.014.516.52.05.00.10
CS0900
105.090.026.087.0107.4106.6100.011.814.22.92.80.10
CS0901
102.090.020.087.0107.4106.6100.09.011.01.82.00.10
CS0903
109.090.432.087.0113.4112.7100.414.517.03.23.00.10
CS0904
109.090.432.087.0112.5111.7100.414.517.03.23.00.10
CS0905
109.090.532.087.0114.0113.0100.414.517.52.85.00.10
CS0920
109.092.022.088.0113.8112.8104.09.511.02.33.00.10
CS0940
107.094.022.091.0112.0111.0102.09.511.02.33.00.10
CS0950
114.095.032.092.0120.0119.0106.014.517.02.85.00.10
CS0951
111.095.024.092.0115.6114.8108.011.013.01.82.00.10
CS0965
106.596.514.093.5109.7109.2104.57.08.01.51.50.10
CS0970
116.097.032.094.0120.5119.5108.014.517.02.85.00.10
CS0980
119.098.029.695.0124.2123.2111.014.517.02.85.00.10
CS0985
115.098.521.295.0117.3116.5110.09.011.01.82.00.10
CS0990
120.099.028.096.0123.5122.5112.012.514.52.85.00.10
CS1000
119.0100.032.097.0123.5122.5111.014.517.02.85.00.10
CS1001
119.0100.032.097.0124.0123.0111.014.517.02.85.00.10
CS1010
120.0101.030.098.0125.0124.0111.014.517.02.85.00.15
CS1020
122.0102.033.099.0127.2126.2114.016.518.53.13.00.15
CS1039
117.1103.922.0100.0121.0120.2112.09.010.52.03.00.15
CS1040
117.0104.022.0101.0122.0121.0112.09.511.02.33.00.15
CS1041
122.5104.022.5101.0125.5125.1117.010.011.52.04.00.15
CS1042
125.0104.028.0101.0128.5127.5117.012.514.02.85.00.15
CS1070
125.0107.024.0103.0130.4129.4119.511.013.52.85.00.15
CS1075
122.5107.522.5101.0125.5125.1117.010.011.52.04.00.15
CS1095
127.0109.532.0104.0132.6131.5121.014.517.02.85.00.15
CS1100
128.0110.032.0106.0133.0132.0121.014.517.02.85.00.15
CS1110
133.0111.032.0108.0137.0136.0124.514.518.02.85.00.15
CS1111
128.0111.022.0108.0132.5132.0123.09.511.02.33.00.15
CS1120
132.0112.031.8109.0136.3135.3124.015.017.02.85.00.15
CS1145
129.0114.521.0111.0134.1133.1126.09.210.02.33.00.15
CS1150
137.0115.031.0112.0141.8140.8130.014.516.52.83.00.15
CS1170
140.0117.029.0114.0142.5141.5132.013.014.02.85.00.15
CS1171
138.0117.032.0114.0142.5141.5132.014.517.02.85.00.15
CS1180
138.0118.032.0115.0143.0142.0132.014.517.02.85.00.15
CS1200
142.0120.038.0116.0149.0148.0133.017.019.03.16.50.15
CS1201
139.0120.032.0116.0144.3143.3132.014.517.02.85.00.15
CS1202
138.0120.032.0117.0143.0142.0132.014.517.02.85.00.15
CS1203
139.0120.032.0116.0144.0143.0132.014.517.02.85.00.15
CS1210
139.0121.032.0116.0143.8142.8132.014.517.02.85.00.15
CS1240
140.9124.022.0121.0146.4145.4136.09.511.02.33.00.15
CS1250
144.0125.031.8121.0148.5147.5136.014.517.02.85.00.15
CS1270
140.7127.025.0124.0144.0143.2135.012.014.52.03.00.15
CS1271
146.0127.032.0124.0150.5149.5138.014.517.52.85.00.15
CS1272
141.1127.029.0124.0148.2147.2135.013.215.52.85.00.15
CS1273
141.0127.029.0124.0144.0143.0136.012.014.52.33.00.15
CS1290
145.0129.020.0125.0150.0149.0141.010.612.32.83.00.15
CS1300
150.0130.032.0125.0156.0155.0144.614.517.02.85.00.15
CS1302
152.0130.038.4125.0159.0158.0142.018.020.53.16.50.15
CS1320
152.0132.030.0129.0156.2155.0144.612.514.52.53.00.15
CS1355
154.5135.528.0132.0158.3157.3146.512.514.02.85.00.15
CS1360
155.0136.030.0132.0159.7158.7145.014.517.02.85.00.15





DO Floating Seal


Drawing No.Seal SetShaft(Max)   dHousing Bore
PN#A=DIDHdhdedft1t2mint3rTol.
for
CS1370
153.0137.030.0132.0161.7160.7147.014.517.02.85.00.15
CS1420
160.0142.033.0139.0166.0165.0152.016.518.53.13.00.15
CS1430
157.1143.025.0139.0160.0159.0152.012.014.52.33.00.15
CS1431
160.0143.027.0138.0164.0163.0154.012.014.52.85.00.15
CS1432
157.0143.027.0138.0160.0159.0152.012.014.52.33.00.15
CS1460
168.1146.038.0143.0177.0176.0159.018.020.53.16.50.15
CS1461
172.0146.038.0143.0177.0176.0159.018.020.53.16.50.15
CS1462
175.0146.038.0143.0180.5179.5162.017.520.53.16.50.15
CS1500
172.2150.040.0146.0176.3175.5165.018.020.02.53.00.15
CS1501
171.0150.032.0146.0175.6174.6164.014.517.02.85.00.15
CS1502
172.1150.040.0146.0179.0178.0165.018.020.02.53.00.15
CS1503
167.0150.028.0146.0171.0170.0160.012.514.52.85.00.15
CS1504
172.0150.039.0146.0176.5175.5165.018.020.02.53.00.15
CS1530
171.5153.028.0150.0176.3175.3164.512.514.52.85.00.15
CS1535
171.6153.532.0150.5178.0177.0166.014.517.02.85.00.15
CS1538
180.0153.838.0150.0185.0184.0167.018.020.53.16.50.15
CS1539
168.0153.925.4151.0171.0170.2163.012.014.52.33.00.15
CS1540
168.0154.027.0151.0171.0170.0163.012.014.52.33.00.15
CS1541
169.0154.022.0151.0174.5173.5166.09.511.02.33.00.15
CS1542
170.0154.021.0151.0175.1174.1167.09.211.02.33.00.15
CS1543
173.5154.032.0151.0178.0177.0166.014.517.02.85.00.15
CS1545
178.0154.034.0151.0181.0180.0171.018.020.52.85.00.15
CS1550
177.0155.039.0152.0180.0179.0168.018.020.02.53.00.15
CS1600
180.0160.032.0156.0186.3185.5174.013.515.52.85.00.15
CS1630
191.3163.038.0159.0196.5195.5178.518.020.53.16.50.15
CS1631
191.0163.046.0159.0196.8195.8178.421.023.53.16.50.15
CS1632
191.5163.038.0159.0197.7197.0178.418.020.53.16.50.15
CS1640
189.0164.030.0159.0193.5192.5179.014.517.02.85.00.15
CS1650
181.0165.027.0161.0185.0184.0176.512.014.52.33.00.15
CS1651
183.0165.028.0161.0188.0187.0176.012.514.52.85.00.15
CS1665
191.5166.038.0163.0196.5195.5178.518.020.53.16.50.15
CS1670
194.0167.038.0163.0198.0197.0187.018.020.53.16.50.15
CS1690
188.5169.032.0165.0193.5192.5179.015.017.02.85.00.15
CS1713
185.3171.320.0167.0188.0187.3180.09.011.01.82.00.15
CS1720
194.4172.031.8168.0198.9197.9186.014.517.02.85.00.15
CS1725
190.0172.525.4169.0192.7191.8188.012.714.32.32.80.15
CS1730
200.0173.036.0169.0205.5204.5190.518.020.53.16.00.15
CS1731
200.0173.040.0170.0204.0203.0191.018.020.53.16.50.15
CS1740
190.0174.025.4170.0192.7191.8188.012.714.32.32.80.15
CS1760
195.0176.028.0171.0199.8198.8188.012.514.52.85.00.15
CS1770
200.0177.030.0173.0204.5203.5191.014.517.02.85.00.15
CS1780
200.0178.038.0174.0210.6209.6191.018.020.53.16.50.15
CS1781
200.0178.038.0174.0212.0211.0191.018.020.53.16.50.15
CS1782
199.0178.032.0174.0203.6202.6190.014.517.02.85.00.15
CS1800
197.4180.021.4173.0202.2201.9196.09.410.61.23.00.15
CS1820
210.5182.038.0179.0215.5214.5197.518.020.53.16.50.15
CS1825
210.3182.546.0179.0215.5214.5197.521.023.53.16.50.15
CS1830
202.0183.028.0179.0206.0205.0195.012.514.52.85.00.15
CS1860
203.0186.025.4182.0205.7204.8192.012.714.32.32.80.15
CS1865
202.5186.521.4182.0207.0206.0202.09.410.61.23.00.15
CS1866
202.8186.621.7182.0208.0207.0202.09.410.61.23.00.15
CS1900
216.0190.044.0186.0224.0223.0206.521.022.53.16.50.15
CS1910
210.0191.028.0188.0214.0213.0203.012.514.52.85.00.15
CS1920
215.0192.033.0189.0220.8219.8207.016.518.53.16.00.15
CS1921
209.0192.030.0189.0213.5212.5200.014.517.02.85.00.15
CS1930
218.0193.038.0190.0225.0224.0208.018.020.53.16.50.15
CS1950
216.5195.031.8191.0221.0220.0207.014.517.02.85.00.15
CS2000
228.5200.038.0197.0233.5232.5215.518.020.53.16.50.15
CS2020
222.3202.026.5197.0224.9224.1217.911.814.22.22.50.15
CS2050
227.0205.030.0201.0231.5230.5219.014.517.02.85.00.15
CS2051
227.1205.030.4201.0232.0231.0219.014.517.02.85.00.15
CS2085
222.8208.026.0204.0225.4224.4217.011.513.52.22.50.15
CS2090
234.0209.042.0206.0242.6241.6224.019.521.53.04.00.15
CS2100
240.0210.040.0207.0246.4245.4228.018.020.53.16.50.15
CS2160
237.0216.030.0212.0241.5240.5229.014.517.02.85.00.15
CS2170
240.0217.036.0213.0244.0243.0228.018.020.53.16.00.15
CS2180
246.0218.038.0214.0251.0250.0239.017.520.53.16.50.15
CS2190
245.0219.032.0215.0250.9249.9238.414.518.02.85.00.15
CS2201
246.0220.041.0216.0254.6253.6236.020.522.53.04.00.15
CS2202
241.0220.026.0216.0245.3244.3234.011.013.52.24.00.15
CS2203
241.4220.025.0216.0244.7244.0233.911.013.52.24.00.15
CS2204
239.5220.031.8216.0244.0243.0232.014.517.02.85.00.15
CS2220
246.0222.036.0218.0251.6250.6236.518.020.53.15.00.15
CS2230
251.4223.038.0219.0256.5255.5238.518.020.53.16.50.15
CS2231
251.5223.038.0219.0258.0257.0241.018.020.53.16.50.15
CS2250
253.0225.038.0221.0258.0257.0241.018.020.53.16.50.15
CS2254
252.0225.446.0222.0257.0255.9238.921.023.53.16.50.15
CS2255
251.6225.538.0222.0256.5255.5238.518.020.53.16.50.15
CS2320
260.0232.036.0228.0265.0264.0250.018.020.53.16.00.15
CS2321
259.5232.038.0228.0264.7263.7247.018.020.53.16.00.15
CS2340
260.0234.036.0230.0266.0265.0250.018.020.53.16.00.15
CS2348
255.0235.028.0231.0260.0259.0249.012.514.52.85.00.15
CS2350
259.5235.038.0231.0264.7263.7247.018.020.53.16.00.15
CS2360
266.0236.042.0233.0275.0274.0256.019.521.53.04.00.15
CS2380
261.0238.032.0234.0265.5264.5254.014.517.02.85.00.15
CS2390
268.0239.040.0235.0274.2273.2257.018.020.53.16.50.15
CS2400
262.8240.038.0236.0273.5272.5255.518.020.53.16.50.15
CS2401
268.5240.038.0236.0273.5272.5255.518.020.53.16.50.15
CS2410
273.0241.040.0237.0278.0277.0266.019.021.53.16.50.15
CS2450
264.5245.032.0241.0269.0268.0257.014.517.02.85.00.15
CS2500
276.0250.044.0246.0284.6283.6266.020.522.53.16.50.15
CS2501
270.0250.030.0246.0274.7273.7262.014.517.02.85.00.15
CS2520
280.0252.038.0249.0285.5284.5267.518.520.53.16.50.15
CS2540
280.1254.038.0251.0286.2285.2269.018.520.53.16.50.15
CS2600
288.0260.040.0256.0295.0294.0276.018.520.53.16.50.15
CS2620
290.0262.038.0259.0298.0297.0280.018.020.53.16.50.15
CS2650
293.0265.038.0261.0298.0297.0280.018.020.53.16.50.15
CS2651
292.8265.046.0262.0298.0297.0280.021.023.53.16.50.15
CS2652
294.0265.038.0261.0299.0298.0280.018.020.53.16.50.15
CS2680
293.0268.038.0265.0298.0297.0280.018.020.53.16.50.15






DO Floating Seal


Drawing No.Seal SetShaft(Max)   dHousing Bore
PN#A=DIDHdhdedft1t2mint3rTol.
for
CS2720
300.0272.040.0268.0305.0304.0286.018.020.53.16.50.20
CS2740
300.0274.040.0270.0306.0305.0286.018.020.53.16.50.20
CS2750
303.0275.038.0271.0308.0307.0290.018.020.53.16.50.20
CS2770
310.0277.038.0273.0315.5314.5303.017.520.53.16.50.20
CS2820
314.0282.040.0280.0320.0319.0300.018.521.03.16.50.20
CS2825
310.8282.538.0279.0316.4315.4298.018.020.53.16.50.20
CS2940
327.0298.042.0294.0333.2332.2315.019.021.53.16.50.20
CS2980
328.0298.040.0295.0332.5331.5315.019.021.53.16.50.20
CS3000
328.0300.040.0295.0333.0332.0315.019.021.53.16.50.20
CS3001
324.6300.038.0295.0335.5334.5318.017.520.53.16.50.20
CS3002
325.0300.038.0295.0336.5335.5318.017.520.53.16.50.20
CS3010
328.0301.038.0296.0333.0332.0315.018.420.40.76.30.20
CS3090
337.0309.040.0304.0341.0340.0325.019.021.53.16.50.20
CS3180
341.0318.038.0315.0351.5350.5334.018.020.53.16.50.20
CS3181
346.0318.038.0315.0351.5350.5334.018.020.53.16.50.20
CS3185
346.0318.546.0315.0351.5350.5334.021.023.53.16.50.20
CS3200
346.0320.038.0317.0351.5350.5334.018.020.53.16.50.20
CS3201
346.5320.146.0317.0351.5350.5334.021.023.53.16.50.20
CS3202
348.0320.240.0317.0354.5353.5338.019.021.53.16.50.20
CS3260
354.0326.038.0323.0360.0359.0346.017.520.53.16.50.20
CS3360
368.0336.040.0333.0374.8373.8358.019.021.53.16.50.20
CS3395
368.0339.540.0335.0374.8373.8358.019.021.53.16.50.20
CS3396
368.5339.638.0335.0374.8373.8358.019.021.53.16.50.20
CS3400
370.0340.040.4335.0375.7374.7358.019.021.53.16.50.20
CS3500
376.0350.044.0345.0386.0385.0368.020.522.53.16.50.20
CS3501
375.0350.038.0345.0385.5384.5368.017.520.53.16.50.20
CS3550
375.0355.038.0350.0385.5384.5368.017.520.53.16.50.20
CS3560
381.0356.038.0351.0389.5388.5370.017.520.53.16.50.20
CS3650
394.2365.038.0361.0400.0399.0381.018.020.53.06.50.20
CS3660
394.4366.038.0361.0399.5398.5381.017.520.53.06.50.20
CS3661
394.0366.046.0361.0399.5398.5381.021.023.53.16.50.20
CS3662
394.3366.040.0361.0399.5398.5381.017.520.53.06.50.20
CS3690
394.4369.038.0365.0399.5398.5381.017.520.53.06.50.20
CS3691
394.0369.046.0365.0399.5398.5381.021.023.53.16.50.20
CS3700
397.8370.038.0365.0403.5402.5385.017.520.53.06.50.20
CS3805
405.0380.540.0375.0412.0411.0395.018.021.53.76.00.20
CS3810
405.0381.040.6376.0415.0414.0397.019.021.53.16.50.20
CS3820
410.0382.042.0378.0415.4414.4400.019.521.53.04.00.20
CS3850
413.0387.046.0382.0419.5418.5400.021.023.53.16.50.20
CS3870
415.0387.038.0382.0419.5418.5402.017.520.53.06.50.20
CS3871
415.1387.038.0382.0420.3419.3402.017.520.53.06.50.20
CS3878
410.1387.838.0382.0419.5418.5402.018.020.53.06.50.20
CS3880
417.0388.038.0383.0423.5422.5405.017.520.53.06.50.20
CS3881
416.2388.038.0383.0421.6420.6402.017.520.53.06.50.20
CS4000
427.0400.038.0395.0432.4431.4414.017.520.53.06.50.20
CS4070
436.0407.038.0404.0442.5441.5424.017.520.53.06.50.20
CS4240
454.0424.042.0420.0461.0460.0444.019.521.53.04.00.20
CS4285
454.1428.537.0425.0462.3461.3444.018.021.03.06.50.20
CS4290
457.0429.038.0426.0463.5462.5444.017.520.53.06.50.20
CS4291
457.2429.046.0426.0462.3461.3444.021.023.53.16.50.20
CS4300
457.0430.038.0426.0462.3461.3444.017.520.53.06.50.20
CS4450
473.0445.038.0440.0478.3477.3460.017.520.53.06.50.20
CS4480
482.5448.040.0443.0486.3485.3470.019.021.53.16.50.20
CS4500
480.0450.050.0445.0492.2490.2470.023.525.54.06.00.20
CS4540
482.6454.039.0450.0487.7486.7470.022.024.03.76.30.20
CS4600
494.0460.060.0455.0504.8503.2484.023.825.84.78.00.20
CS4650
495.0465.044.0460.0500.7498.5482.921.223.24.77.00.20
CS4651
497.0465.044.0460.0503.1500.9482.921.223.24.77.00.20
CS4700
500.0470.050.0465.0512.2510.2490.023.525.54.06.00.25
CS5050
533.4505.044.0500.0538.4537.4521.019.721.74.06.50.25
CS5051
535.0505.044.0500.0541.7539.7521.019.721.74.26.50.25
CS5080
548.0508.060.0503.0553.0551.5524.023.026.05.09.00.25
CS5300
560.0530.050.0524.0572.2570.2545.023.525.54.06.00.25
CS5380
568.0538.044.0532.0573.1572.1555.019.721.74.06.50.25
CS5381
567.0538.044.0532.0572.2571.2554.019.721.74.06.50.25
CS5382
580.0538.062.0532.0585.0583.5556.023.026.05.09.00.25
CS5590
590.0559.050.0554.0602.2600.2575.023.525.54.06.00.25
CS5760
608.0576.044.0572.0613.0612.0596.019.721.74.06.50.25
CS5800
608.0580.044.0575.0613.0612.0596.019.721.74.06.50.25
CS5910
623.0591.050.0586.0635.2633.2613.023.525.54.06.00.25
CS5960
628.0596.050.0591.0640.2638.2618.023.525.54.06.00.25
CS6200
650.0620.050.0615.0662.2660.2635.023.525.54.06.00.25
CS6600
695.0660.053.0653.0705.3703.3680.020.022.54.06.00.25
CS6670
700.0667.044.0660.0705.6704.3687.021.324.03.76.30.25
CS6671
700.0667.050.0660.0705.6704.3687.021.526.03.76.30.25
CS7180
750.0718.050.0710.0762.2760.2740.023.525.54.06.00.25
CS7370
768.0737.050.0730.0784.0782.0760.024.026.04.06.00.25
CS7380
770.0738.050.0730.0782.0780.0760.024.026.04.06.00.25
CS7450
800.0745.080.0730.0806.9805.9775.034.538.94.410.00.30
CS7740
807.0773.044.0763.0812.4811.4794.022.024.03.76.30.30
CS7700
825.0770.080.0755.0831.9830.9800.034.538.94.410.00.30
CS7750
821.0775.060.0750.0828.0826.5798.023.026.05.09.00.25
CS7800
835.0780.080.0765.0841.9840.9810.034.538.94.410.00.30
CS8250
865.0825.046.6815.0870.6869.6852.719.023.03.76.30.30
CS8251
865.1825.048.0815.0870.6869.6853.018.523.53.76.30.30
CS8252
872.0825.060.0815.0876.0874.5846.023.026.05.09.00.30
CS8320
865.0832.044.0820.0870.6869.6852.718.523.53.76.30.30
CS8300
886.0830.080.0815.0891.9890.9860.034.538.94.410.00.30
CS8350
886.0835.080.0820.0891.9890.9860.034.538.94.410.00.30
CS8950
951.0895.080.0885.0956.9955.9924.034.538.94.410.00.30
CS9000
941.0900.060.0885.0946.3945.2922.423.825.24.78.00.30
CS9200
976.0920.080.0900.0981.9980.9950.034.538.94.410.00.30
CS10300
1085.01030.080.01010.01090.91089.91058.034.538.94.410.00.30
CS10440
1105.01044.080.01024.01110.91109.91078.034.538.94.410.00.30







Packing & Shipping of Fuyote Duo Cone Seals


Packaging Options at Fuyote


Depending on the quantity, weight, and size of Duo Cone Seals, Fuyote offers a choice between wooden packing and paper cases. The selection is also influenced by the transportation method, with vacuum packing inside to prevent oxidation.

Fuyote uses a secure outer structure to prevent crushing, crucial for the precision of floating seals, especially the contact band.


fuyote-duo-cone-seal-packing-steps.jpg


Additionally, Fuyote provides OEM and ODM options for packaging, including blank or customized packaging with logos. For further details on packaging solutions, please contact FUYOTE directly.


Shipping Options at Fuyote


Fuyote provides both sea and air transportation options for floating seals, depending on the volume and weight of the goods.


We offer FOB and express delivery to accommodate customer preferences, ensuring various transportation methods can be selected based on specific needs.



Click and get to know our wide range of shipping brands, and you're welcome to contact us for further details.


Best Practices for Handling and Installing Duo-cone Seals


  • Duo cone seals, as a type of mechanical face seals get metamorphic when exposed to air for a long time. Only remove the sealed package before installation. Duo cone seals are easy to break. Handle gently and install in a dust-free condition. 

  • We recommend the use of specialized duo cone seal installation tools to ensure a proper installation of o-rings. If improperly installed, a twist on o-rings might lead to uneven stress and creep down from the metal ring. Eventually causes early failure. 

  • As duo cone seals are high-precision products, especially the contact band, please do not use sharp instruments and please wear gloves during assembly.  

  • The Duo-cone floating seal needs to be kept in a Dark & cool Place because the O-ring is sensitive to the temperature. Laid flat and do not crush storing. 

  • Twist-on o-rings might lead to uneven stress and creep down from the metal ring and eventually cause early failure. 

Operating Guidelines for Duo-Cone Seals


As a type of floating seal, Duo-cone seals cannot be used in inappropriate pressure & velocity environments. And also the lubrication use needs to be paid attention to. 

  • Recommend temperature: -40~150 degrees Celsius

  • Working liner speed: withstands circumferential speed of up to 10 m/sec.

  • Usually, floating seals can accept at most 0.3MPa pressure

  • It is essential to lubricate the seal at the sealing gaps, we prefer to use oil lubrication rather than grease lubrication

  • The oil level needs to be between the middle of the axis and the 2/3 of the inside diameter of the seal. SAE 80 and SAE 90 gearbox oils are recommended to be used. 

Sharp instruments cannot be used in floating seal installation. Inappropriate assembly will  cause irreversible damage of metal ring’s sealing face. Except Square Bore mechanical face seal, floating seals need to use installation tools to avoid damage. 

Installation tool is a slotted ring, which slipped around the seal ring. The step of installation tools locates between the elastomeric ring and the land of the seal ring. Pressure is therefore applied directly to the O-ring while inserting the seal. 


Types of installation tools and guide are offered in this part.

Duo Cone Seal Catalog

Floating Seal Inquiry