Standard sealing solutions for SNL and SE plummer block housings

Seal
Type	Four-lip split	V-ring	Felt seal split	Felt strip split	Labyrinth	Taconite	End cover
Designation	TSN .. L	TSN .. A	TSN .. C	FS 170	TSN .. S	TK ..	ASNH ..
Material	thermoplastic polyester elastomer	nitrile rubber, steel	felt, nitrile rubber, aluminium	felt	steel, silicone	steel or cast iron, nitrile rubber	polymer
Seals per pack	2 seals	2 seals	2 seals	1 strip2)	1 seal	1 seal	1 end cover
Application conditions and requirements
Temperature [°C]	–40 to +100	–40 to +100	–40 to +100	–40 to +100	–50 to +200	–40 to +100	–40 to +110
Temperature [°F]	–40 to +210	–40 to +210	–40 to +210	–40 to +210	–60 to +390	–40 to +210	–40 to +230
Max. circumferential speed1) [m/s]	13	72)	42)	42)	not limited	12	n/a
Max. misalignment [°]	1 to 0,5	1,5 to 1	0,5	0,5	0,3	0,5	n/a
Low friction	++	++	–	–	++	+	n/a
Axial shaft displacement	++	–	++	++	+	+	n/a
Vertical arrangement	+	++3)	––	––	––	+	++
Replacement	++	–	+	+	–	–	++
Shaft tolerance class	h9Ⓔ	n/a	h9Ⓔ	h9Ⓔ	h9Ⓔ	h9Ⓔ	n/a
Shaft roughness Ra [µm]	≤ 3,2	n/a	≤ 3,2	≤ 3,2	≤ 3,2	≤ 3,2	n/a
Sealing suitability
Dust	++	+	–	–	–	++	++
Fine particles	++	+	–	–	+	++	++
Coarse particles	++	+	+	+	+	++	++
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 table.
2. 2) Higher speeds are possible. For details, refer to the text about the relevant seal.
3. 3) For details see text about the relevant seal.