Standard seals for SNLN 30 plummer block housings

Seal
Type Four-lip
split
V-ring Felt
split
Labyrinth Taconite Taconite End cover End cover
Designation TSN .. L TSN .. A TSN .. C TSN .. S TSN .. ND TNF .. ASNH .. ETS ..
Size range for adapter sleeve mounting 3024 to 3032
3024 to 3032 3024 to 3032 3024 to 3056 3024 to 3032 3024 to 3056 3024 to 3032 3024 to 3056
Size range for cylindrical seat mounting 224 to 230 224 to 232 n/a 224 to 232, 3034/185 to 3056/295 224 to 232 3034/185 to 3056/295

Material thermoplastic polyesterelastomer
nitrile rubber, steel
felt, nitrile rubber, aluminium
steel or cast iron, silicone
steel, nitrile rubber
steel, nitrile rubber polymer cast iron, silicone
Seals per pack 2 seals 2 seals 2 seals 1 seal 1 seal 1 seal 1 end cover 1 end cover
Application conditions and requirements
Temperature [°C] –40 to +100 –40 to +100 –40 to +100 –50 to +200 –40 to +100 –40 to +100 –40 to +110 –50 to +200
Temperature [°F] –40 to +210 –40 to +210 –40 to +210 –60 to +390 –40 to +210 –40 to +210 –40 to +230 –60 to +390
Max. circumferential speed1) [m/s] 13 72) 4 not limited 12 12 n/a n/a
Max. misalignment [°] 0,5 1 to 1,5 0,5 0,3 0,5 0,3 n/a n/a
Low friction ++ ++ ++ + + n/a n/a
Axial shaft displacement ++ ++ + + + n/a n/a
Vertical shaft arrangement + ++3) –– –– ++ ++
Replacement ++ + ++ ++
Shaft tolerance class h9Ⓔ n/a h9Ⓔ h9Ⓔ h9Ⓔ h9Ⓔ n/a n/a
Shaft roughness Ra [µm] ≤ 3,2 n/a ≤ 3,2 ≤ 3,2 ≤ 3,2 n/a n/a n/a
Sealing suitability
Dust ++ + ++ ++ ++ ++
Fine particles ++ + + ++ ++ ++ ++
Coarse particules ++ + + + ++ ++ ++ ++
Chips + –– + ++ ++ ++ ++ ++
Liquids when sprayed + + –– ++ ++ ++ ++
Direct sunlight + –– ++ ++ ++ ++ ++ ++

Symbols: n/a not applicable, ++ very suitable, + suitable, – limited suitability, –– unsuitable
  1. 1) To convert circumferential speeds to rotational speeds, refer to this table.
  2. 2) Higher speeds are permissible if the V-ring is located axially on the shaft.
  3. 3) When the V-ring of the lower seal is mounted inboard

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