SKF Cooper split roller bearings and bearing units

Sealing Table 7 Sealing solutions for cartridges Seal Type Felt (F) High temperature packing (HTP) Aluminium triple labyrinth (ATL) Grease groove (LAB) Synthetic rubber single lip (SRS) Spring loaded single lip with retaining plate (SRSRP) Variants – – High temp. (ATL HT) – High temp. (SRS HT) High pressure (SRSRP 40M) Material felt graphite impreg- nated PTFE yarn aluminium O-rings: • ATL: NBR • ATL HT: fluoro carbon – SRS: neoprene or NBR SRS HT: fluorinated NBR neoprene or NBR Range and availability Split cylindrical roller bearings US and Canada available on request available on request standard for all sizes available on request available on request available on request Countries other than US and Canada standard for d a ≤ 300 mm or 12 in. available on request available on request standard for d a > 300 mm or 12 in. available on request available on request available on request for larger sizes available on request for smaller sizes Split tapered roller bearings All regions available on request available on request available on request standard for all sizes available on request available on request Application conditions Temperature [°C] –70 to +100 –70 to +260 ATL: –20 to +100 ATL HT: –20 to +200 Bearing maximum temp. limit SRS: –20 to +100 SRS HT: –20 to +200 –20 to +100 Temperature [°F] –95 to +210 –95 to +500 ATL: –5 to +210 ATL HT: –5 to +390 Bearing maximum temp. limit SRS: –5 to +210 SRS HT: –5 to +390 –5 to +210 Max. rotational speed [dn 1) ] 150 000 150 000 not limited not limited 150 000 150 000 Shaft roughness Ra [μm] ≤ 1,6 ≤ 0,8 ≤ 3,2 ≤ 3,2 ≤ 0,8 ≤ 0,4 Sealing suitability Dust – – – – – + ++ Fine particles – – + – – + ++ Coarse particles + + + + + ++ Chips + + ++ + + ++ Liquids when sprayed – – – – – – + + Direct sunlight – – – – ++ ++ + + Symbols: ++ very suitable, + suitable, – limited suitability, – – unsuitable Applications general applications general applications general applications, high speeds high or slow speeds, marine applications wet but not submerged conditions, improved lubricant retention with lip mounted inwards severe splash or completely sub- merged conditions: ≤ 2 m of water (standard) ≤ 40 m of water (high pressure) 1) Speed factor dn [mm/min] = bearing bore [mm] x rotational speed [r/min] 17 1

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