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Double sealed deep groove ball bearing
Double sealed deep groove ball bearing

Self-aligning Ball Bearings

Double sealed deep groove ball bearing

Description：

Double-sealed bearings are commonly used in applications where environmental conditions may be harsh or where there is a need to prevent lubricant leakage or contamination. They are found in various industries including automotive, industrial machinery, agriculture, and more. The sealing arrangement helps to prolong the life of the bearing by maintaining proper lubrication and preventing the ingress of harmful contaminants, thereby reducing friction and wear. This type of bearing is often preferred in applications where maintenance is limited or difficult to perform regularly.

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Product Detail

Boundary dimensions(mm) Load rating(kN) Speed rating(r/min) Bearing numbers Mounting dimensions(mm) Axial load factors Weight
(reference)
(kg)
d D B r1,2
min		 Cr Cor Grease Cylindrical bore Tapered bore da
min		 Da
max		 ra
max		 e Y1 Y2 Y0
10 30 14 0.6 5.53 1.18 17000 2200A-2RS1TN – 14.0 26.0 0.6 0.33 1.9 3.0 2.0 0.048
12 32 14 0.6 6.24 1.43 16000 2201A-2RS1TN – 15.0 28.0 0.6 0.33 1.9 3.0 2.0 0.053
15 35 14 0.6 7.41 1.76 14000 2202A-2RS1TN – 19.0 31.0 0.6 0.33 1.9 3.0 2.0 0.058
15 42 17 1.0 10.80 2.60 12000 2302A-2RS1TN – 20.0 37.0 1.0 0.31 2.0 3.1 2.2 0.110
17 40 16 0.6 8.84 2.20 12000 2203A-2RS1TN – 21.0 36.0 0.6 0.31 2.0 3.1 2.2 0.089
17 47 19 1.0 12.70 3.40 11000 2303A-2RS1TN – 22.0 42.0 1.0 0.30 2.1 3.3 2.2 0.160
20 47 18 1.0 12.70 3.40 10000 2204A-2RS1TN 2204AK-2RS1TN 25.0 42.0 1.0 0.30 2.1 3.3 2.2 0.140
20 52 21 1.1 14.30 4.00 9500 2304A-2RS1TN – 26.0 45.5 1.0 0.28 2.2 3.5 2.5 0.210
25 52 18 1.0 14.30 4.00 9000 2205A-2RS1TN 2205AK-2RS1TN 30.0 47.0 1.0 0.28 2.2 3.5 2.5 0.160
25 62 24 1.1 19.00 5.40 7500 2305A-2RS1TN – 31.5 55.5 1.1 0.28 2.2 3.5 2.5 0.340
30 62 20 1.0 15.60 4.65 7500 2206A-2RS1 2206AK-2RS1 35.0 57.0 1.0 0.25 2.5 3.9 2.5 0.260
30 62 20 1.0 15.60 4.65 7500 2206A-2RS1TN 2206AK-2RS1TN 35.0 57.0 1.0 0.25 2.5 3.9 2.5 0.260
30 72 27 1.1 22.50 6.80 6700 2306A-2RS1 – 36.5 65.5 1.0 0.25 2.5 3.9 2.5 0.510
30 72 27 1.1 22.50 6.80 6700 2306A-2RS1TN – 36.5 65.5 1.0 0.25 2.5 3.9 2.5 0.510
35 72 23 1.1 19.00 6.00 6300 2207A-2RS1 2207AK-2RS1 41.5 65.5 1.0 0.23 2.7 4.2 2.8 0.410
35 72 23 1.1 19.00 6.00 6300 2207A-2RS1TN 2207AK-2RS1TN 41.5 65.5 1.0 0.23 2.7 4.2 2.8 0.410
35 80 31 1.5 26.50 8.50 5600 2307A-2RS1 – 43.0 72.0 1.5 0.25 2.5 3.9 2.5 0.700
35 80 31 1.5 26.50 8.50 5600 2307A-2RS1TN – 43.0 72.0 1.5 0.25 2.5 3.9 2.5 0.700
40 80 23 1.1 19.90 6.95 5600 2208A-2RS1 2208AK-2RS1 46.5 73.5 1.0 0.22 2.9 4.5 2.8 0.500
40 80 23 1.1 19.90 6.95 5600 2208A-2RS1TN 2208AK-2RS1TN 46.5 73.5 1.0 0.22 2.9 4.5 2.8 0.500
40 90 33 1.5 33.80 11.20 5000 2308A-2RS1 – 48.0 82.0 1.5 0.23 2.7 4.2 2.8 0.960
40 90 33 1.5 33.80 11.20 5000 2308A-2RS1TN – 48.0 82.0 1.5 0.23 2.7 4.2 2.8 0.960
45 85 23 1.1 22.90 7.80 5300 2209A-2RS1 2209AK-2RS1 51.5 78.5 1.0 0.21 3.0 4.6 3.2 0.530
45 85 23 1.1 22.90 7.80 5300 2209A-2RS1TN 2209AK-2RS1TN 51.5 78.5 1.0 0.21 3.0 4.6 3.2 0.530
Boundary dimensions(mm) Load rating(kN) Speed rating(r/min) Bearing numbers Mounting dimensions(mm) Axial load factors Weight
(reference)
(kg)
d D B r1,2
min		 Cr Cor Grease Cylindrical bore Tapered bore da
min		 Da
max		 ra
max		 e Y1 Y2 Y0
45 100 36 1.5 39.00 13.40 4500 2309A-2RS1 – 53.0 92.0 1.5 0.23 2.7 4.2 2.8 1.300
45 100 36 1.5 39.00 13.40 4500 2309A-2RS1TN – 53.0 92.0 1.5 0.23 2.7 4.2 2.8 1.300
50 90 23 1.1 22.90 8.15 4800 2210A-2RS1 2210AK-2RS1 56.5 83.5 1.0 0.20 3.2 4.9 3.2 0.570
50 90 23 1.1 22.90 8.15 4800 2210A-2RS1TN 2210AK-2RS1TN 56.5 83.5 1.0 0.20 3.2 4.9 3.2 0.570
50 110 40 2.0 43.60 14.00 4000 2310A-2RS1 – 59.0 101.0 2.0 0.24 2.6 4.1 2.8 1.650
50 110 40 2.0 43.60 14.00 4000 2310A-2RS1TN – 59.0 101.0 2.0 0.24 2.6 4.1 2.8 1.650
55 100 25 1.5 27.60 10.60 4300 2211A-2RS1 2211AK-2RS1 63.0 92.0 1.5 0.19 3.3 5.1 3.6 0.790
55 100 25 1.5 27.60 10.60 4300 2211A-2RS1TN 2211AK-2RS1TN 63.0 92.0 1.5 0.19 3.3 5.1 3.6 0.790
60 110 28 1.5 31.20 12.20 3800 2212A-2RS1 – 68.0 102.0 1.5 0.19 3.3 5.1 3.6 1.050
60 110 28 1.5 31.20 12.20 3800 2212A-2RS1TN – 68.0 102.0 1.5 0.19 3.3 5.1 3.6 1.050
65 120 31 1.5 35.10 14.00 3600 2213A-2RS1 – 73.0 112.0 1.5 0.18 3.5 5.4 3.6 1.400
65 120 31 1.5 35.10 14.00 3600 2213A-2RS1TN – 73.0 112.0 1.5 0.18 3.5 5.4 3.6 1.400
70 125 31 1.5 34.50 13.70 3400 2214A-2RS1 – 78.0 117.0 1.5 0.18 3.5 5.4 3.6 1.500
70 125 31 1.5 34.50 13.70 3400 2214A-2RS1TN – 78.0 117.0 1.5 0.18 3.5 5.4 3.6 1.500

Self-aligning Ball Bearings

45*85*19mm Self-aligning ball bearing

45*85*19mm Self-aligning ball bearing
Double sealed deep groove ball bearing

Double sealed deep groove ball bearing
About us
Ningbo Demy (D&M) Bearings Co., Ltd.
Ningbo Demy (D&M) Bearings Co., Ltd.
Ningbo Demy (D&M) Bearings Co., Ltd. is professional China Double sealed deep groove ball bearing Suppliers and Wholesale Double sealed deep groove ball bearing Manufacturers.Located on the coast of Eastern China, in the beautiful and ancient city of Ningbo, is a rising star enterprise, Ningbo Demy (D&M) Bearings Co., LTD. Its subsidiary company – Ningbo Giant Bearing manufacturing Co., Ltd specializes in high class quality bearings for industrial and automotive applications.
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Self-aligning Ball Bearings Industry knowledge

Double sealed deep groove ball bearing structure

Double Sealed Deep Groove Ball Bearing is a high-performance, high-reliability bearing type. It has a unique double-sided sealing design that allows the bearing to effectively prevent the intrusion of external pollutants while bearing radial and axial loads, ensuring the cleanliness and lubrication of the bearing's internal environment.

1. Structural composition
Double Sealed Deep Groove Ball Bearing is mainly composed of the following parts.
Outer ring: The outer ring is spherical and has no raceway. Its inner surface is precisely machined to form a good contact with the rolling element. The outer ring is usually made of high-quality steel to ensure its strength and wear resistance.
Inner ring: The inner ring consists of two raceways, between which the rolling element and the cage are accommodated. The inner ring is also made of high-quality steel and is heat-treated to improve its hardness and wear resistance.
Rolling element: The rolling element usually uses high-precision steel balls, and its number, diameter and material are determined according to the bearing's load-bearing capacity and use conditions. The rolling element rolls between the inner and outer rings and bears radial and axial loads.
Cage: The cage is used to fix the rolling elements to prevent them from colliding with each other and wearing. The cage is usually made of steel plate stamping wave shape or machined solid structure, and the material can be steel, brass or engineering plastics.
Sealing ring: The sealing ring is a key component of Double Sealed Deep Groove Ball Bearing. Its unique design can effectively prevent external contaminants from entering the bearing. The sealing ring is usually made of elastic materials such as rubber or polytetrafluoroethylene, and has good sealing and wear resistance.

2. Sealing design
The sealing design of Double Sealed Deep Groove Ball Bearing is its unique feature. Sealing rings are installed at both ends of the bearing to ensure that the inside of the bearing is completely isolated from the outside world. The sealing ring forms a close contact with the inner and outer rings of the bearing to prevent dust, moisture and other contaminants from entering the bearing. The sealing ring also has a certain elasticity, which can adapt to the slight deformation of the bearing during operation and ensure the durability of the sealing effect.

3. Material selection
The material selection of Double Sealed Deep Groove Ball Bearing is very critical. The inner and outer rings, rolling elements and cages of the bearing are usually made of high-quality steel to ensure their strength and wear resistance. The sealing ring is made of elastic materials such as rubber or polytetrafluoroethylene, which has good sealing and wear resistance. In addition, the bearing needs to be filled with an appropriate amount of grease to ensure the lubrication effect of the bearing during operation.

4. Manufacturing process
The manufacturing process of Double Sealed Deep Groove Ball Bearing is very delicate. The inner and outer rings, rolling elements and cages of the bearing must be precisely processed and heat treated to ensure their dimensional accuracy and performance requirements. The sealing ring is manufactured using a special process to ensure its sealing effect. The bearing must also be strictly cleaned and lubricated during the assembly process to ensure the cleanliness and lubrication of its internal environment.