Rod Seal SN21

Rod-Seal-SN21-1 Rod-Seal-SN21-2 Rod-Seal-SN21-3
Rod-Seal-SN21-1 Rod-Seal-SN21-2 Rod-Seal-SN21-3

Rod Seal SN21

Description
Product group: Rod seal
Design: N symmetrical u-ring
Profile no.: 21
Specification: E suitable for one-sided pressure load
Seal material: NBR 90 3006 

Operational application limits
Pressure (MPa): ≤ 16
Temperature (°C): -30 to +100
Running speed (m/s): ≤ 0.5

Catalog Rod Seal SN 21 Download View Design Housing Download View Installation Download View

Media
Hydraulic oils acc. to DIN 51524 Part 1 – 3, lubricating oils, mineral oil based lubricating greases, highly non-flammable hydraulic fluids HFA, HFB, HFC acc. to VDMA 24317


Function
The SN 21 has a symmetrical design which allows it to be used as a piston seal and as a rod seal.

Installation
U-rings can be installed in both solid and split housings. Please note for a solid housing application a minimum width is necessary and suitable installation tools may be required. 

Remarks
U-rings made of NBR are primarily used with low pressures as the seal lips are provided with radial pre-stress which is strengthened by the pressure of the system. Apart from applications in hydraulics, this NBR design can also be used in pneumatic applications. For special applications, different materials are also available.

d Size between 4 - 160 mm

D Size between 7.5 - 180 mm

H Size between 3 - 18 mm

Name d D H
Name d D H
MA21 - 4 x 7.5 x 3 4 7.5 3
MA21 - 4 x 12 x 5.5 4 12 5.5
MA21 - 6 x 10 x 3 6 10 3
MA21 - 6 x 12 x 6 6 12 6
MA21 - 8 x 14 x 4 8 14 4
MA21 - 8 x 15 x 6 8 15 6
MA21 - 8 x 16 x 6 8 16 6
MA21 - 8 x 16 x 8 8 16 8
MA21 - 9 x 19 x 6 9 19 6
MA21 - 10 x 16 x 4 10 16 4
MA21 - 10 x 16 x 6 10 16 6
MA21 - 10 x 18 x 4 10 18 4
MA21 - 10 x 18 x 6 10 18 6
MA21 - 10 x 20 x 8 10 20 8
MA21 - 10 x 22 x 6 10 22 6
MA21 - 10 x 25 x 10 10 25 10
MA21 - 10 x 28 x 10 10 28 10
MA21 - 10 x 30 x 10 10 30 10
MA21 - 12 x 18 x 5 12 18 5
MA21 - 12 x 20 x 5 12 20 5
MA21 - 12 x 22 x 6 12 22 6
MA21 - 12 x 24 x 10 12 24 10
MA21 - 12 x 25 x 8 12 25 8
MA21 - 14 x 20 x 5 14 20 5
MA21 - 14 x 22 x 8 14 22 8
MA21 - 14 x 24 x 6 14 24 6
MA21 - 15 x 20 x 3 15 20 3
MA21 - 15 x 25 x 5 15 25 5
MA21 - 15 x 28 x 10 15 28 10
MA21 - 15 x 30 x 10 15 30 10
MA21 - 16 x 22 x 5 16 22 5
MA21 - 16 x 24 x 6 16 24 6
MA21 - 16 x 26 x 6 16 26 6
MA21 - 16 x 25 x 5 16 25 5
MA21 - 16 x 28 x 6 16 28 6
MA21 - 16 x 30 x 6 16 30 6
MA21 - 16 x 32 x 10 16 32 10
MA21 - 18 x 25 x 5 18 25 5
MA21 - 18 x 26 x 5 18 26 5
MA21 - 18 x 28 x 8 18 28 8
MA21 - 18 x 30 x 6 18 30 6
MA21 - 18 x 30 x 10 18 30 10
MA21 - 20 x 27 x 6 20 27 6
MA21 - 20 x 28 x 5 20 28 5
MA21 - 20 x 30 x 6 20 30 6
MA21 - 20 x 30 x 8 20 30 8
MA21 - 20 x 32 x 6 20 32 6
MA21 - 20 x 35 x 10 20 35 10
MA21 - 20 x 36 x 10 20 36 10
MA21 - 20 x 40 x 10 20 40 10
MA21 - 22 x 30 x 6 22 30 6
MA21 - 22 x 32 x 5 22 32 5
MA21 - 24 x 34 x 5 24 34 5
MA21 - 25 x 33 x 4 25 33 4
MA21 - 25 x 35 x 5 25 35 5
MA21 - 25 x 35 x 7 25 35 7
MA21 - 25 x 35 x 8 25 35 8
MA21 - 25 x 38 x 7 25 38 7
MA21 - 25 x 38 x 9 25 38 9
MA21 - 25 x 40 x 10 25 40 10
MA21 - 28 x 36 x 5 28 36 5
MA21 - 28 x 48 x 12 28 48 12
MA21 - 30 x 40 x 5 30 40 5
MA21 - 30 x 40 x 6 30 40 6
MA21 - 30 x 40 x 7 30 40 7
MA21 - 30 x 40 x 10 30 40 10
MA21 - 30 x 42 x 10 30 42 10
MA21 - 30 x 45 x 10 30 45 10
MA21 - 30 x 50 x 12 30 50 12
MA21 - 32 x 40 x 5 32 40 5
MA21 - 32 x 42 x 6 32 42 6
MA21 - 32 x 45 x 10 32 45 10
MA21 - 32 x 52 x 10 32 52 10
MA21 - 35 x 45 x 6 35 45 6
MA21 - 35 x 45 x 10 35 45 10
MA21 - 35 x 50 x 10 35 50 10
MA21 - 35 x 55 x 12 35 55 12
MA21 - 36 x 46 x 7 36 46 7
MA21 - 36 x 50 x 8 36 50 8
MA21 - 38 x 50 x 6 38 50 6
MA21 - 40 x 50 x 5 40 50 5
MA21 - 40 x 50 x 6 40 50 6
MA21 - 40 x 50 x 10 40 50 10
MA21 - 40 x 55 x 10 40 55 10
MA21 - 40 x 56 x 10 40 56 10
MA21 - 40 x 60 x 10 40 60 10
MA21 - 40 x 60 x 12 40 60 12
MA21 - 45 x 55 x 6 45 55 6
MA21 - 45 x 58 x 10 45 58 10
MA21 - 45 x 60 x 10 45 60 10
MA21 - 45 x 63 x 10 45 63 10
MA21 - 48 x 60 x 6 48 60 6
MA21 - 48 x 68 x 10 48 68 10
MA21 - 50 x 60 x 10 50 60 10
MA21 - 50 x 63 x 6 50 63 6
MA21 - 50 x 65 x 12 50 65 12
MA21 - 50 x 70 x 12 50 70 12
MA21 - 50 x 72 x 12 50 72 12
MA21 - 53 x 63 x 6 53 63 6
MA21 - 55 x 70 x 12 55 70 12
MA21 - 55 x 75 x 12 55 75 12
MA21 - 60 x 70 x 6 60 70 6
MA21 - 60 x 80 x 10 60 80 10
MA21 - 60 x 80 x 12 60 80 12
MA21 - 65 x 85 x 12 65 85 12
MA21 - 70 x 80 x 6 70 80 6
MA21 - 70 x 90 x 10 70 90 10
MA21 - 70 x 90 x 12 70 90 12
MA21 - 75 x 95 x 12 75 95 12
MA21 - 80 x 90 x 5 80 90 5
MA21 - 80 x 90 x 6 80 90 6
MA21 - 80 x 100 x 10 80 100 10
MA21 - 80 x 100 x 12 80 100 12
MA21 - 80 x 100 x 15 80 100 15
MA21 - 80 x 105 x 12 80 105 12
MA21 - 80 x 105 x 15 80 105 15
MA21 - 85 x 105 x 15 85 105 15
MA21 - 90 x 110 x 10 90 110 10
MA21 - 95 x 125 x 15 95 125 15
MA21 - 100 x 120 x 12 100 120 12
MA21 - 100 x 125 x 15 100 125 15
MA21 - 110 x 140 x 18 110 140 18
MA21 - 120 x 140 x 14 120 140 14
MA21 - 125 x 150 x 18 125 150 18
MA21 - 130 x 160 x 18 130 160 18
MA21 - 150 x 180 x 18 150 180 18
MA21 - 160 x 180 x 15 160 180 15

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