PRODUCT FOCUS COOPER SPLIT ROLLER BEARING KNOW MORE SELL MORE WIN MORE ISSUE 131

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1 COOPER SPLIT ROLLER BEARING Cooper pioneered the manufacture of the split roller bearing in 1907 (109 years ago). They are still the world leader in the split bearing market. The sealing arrangement is accommodated in the swivel cartridge. Due to the bearing being cylindrical and the cartridge is sphered, the seal will align concentric to the shaft. The standard Cooper cartridge can accommodate either felt seals, split rubber seal (SRS) or high temperature packing (HTP). Alternatively Cooper manufacture a cartridge to take an aluminium labyrinth seal (ATL) and also a cartridge to run totally submerged under water (SRSRP). Cooper Double row spherical

2 FELT (F) Standard in UK and Europe Temperature limits -70 C to 100 C Shaft surface finish 1.6 μm Ra max. HIGH TEMPERATURE PACKING (HTP) A direct replacement for felt in high temperature applications. Temperature limits -70 C to 260 C Shaft surface finish 0.8 μm Ra max. ALUMINUM TRIPLE LABYRINTH (ATL) High temperature version (ATL HT) Low temperature version (ATL LT) Machined aluminium bodied triple labyrinth seal for high speed and general applications. ATL supplied as standard sealing arrangement in USA and Canada. ATL HT and ATL LT are fitted with O rings of different materials. GREASE GROOVE (LAB) Suitable for high or slow speed operations. Particularly successful on marine applications. Temperature limits Maximum speed Shaft surface finish Bearing maximum Bearing maximum 3.2 μm Ra max. Temperature limits ATL -20 C to 100 C ATL HT -20 C to 175 C ATL LT -60 C to 100 C Maximum speed Bearing maximum Shaft surface finish 3.2 μm Ra max.

3 SYNTHETIC RUBBER SINGLE LIP (SRS) High temperature version (SRS HT) Low temperature version (SRS LT) Suitable for wet but not submerged conditions. Can be used for improved lubricant retention by mounting lip inwards. Temperature limits -70 C to 260 C Shaft surface finish 0.8 μm Ra max. SPRING-LOADED SINGLE LIP WITH RETAINING PLATE (SRSRP) High pressure version (SRSRP 40M) Suitable for severe splash or completely submerged conditions. The standard version is suitable for up to 2m of water. the high pressure version is suitable for up to 40m of water. Temperature limits -20 C to 100 C Shaft surface finish 0.4 μm Ra max. BULKHEAD SEALING It is often found economical to combine a bearing and bulkhead seal into one unit. This reduces the number of individual units required, and prevents problems with shaft eccentricity sometimes encountered at the bulkhead seal when it is separated from the bearing. Generally, a specially adapted flange mounting is used and the bearing is fitted with SRSRP seals. Generally, the flange incorporates additional sealing to the cartridge seating, and may include sealing on the mounting face ( backface ). Where the shaft surface speed is too high for standard SRSRP seals, an alternative high speed version is available, or alternative seal types can be used if a moderate leakage of water is permitted through the bearing in an emergency. Sealing to flange mounting face ( BFS ) Sealing to swivel seating ( SSE ) SRSRP Seal

4 PRODUCT ATTRIBUTES 1. The dn factor: The shaft size times the running speed, i.e. 100mm running at 1480 rpm = Speed and environmental conditions: If the dn factor is below an option is to select Felt,SRS, HTP, SRSRP or a blanking plate. 3. The swivel cartridges take up the alignment in the housing (like a ball and socket joint). The seals remain concentric with the shaft at all times. This feature does not compromise the seal in any way. 4. Compared to a double row spherical bearing that aligns internally. If the housing isn t aligned, then you have a gap between shaft and seal on the one side and the seal binds on the other side. PRODUCT BENEFITS 1. The bearing life is extended if the bearing is free from foreign matter like water, dust, grit and moisture 2. The standard cartridge has a felt seal that is suitable for about 90% of our applications 3. The labyrinth seal cartridge uses a split non-contact labyrinth seal. The speed is only limited to the maximum of the bearing. 4. The shaft can be blanked off using a blanking plate. This acts as a seal Plate differs depending on a standard cartridge or labyrinth cartridge

5 TYPES OF SEALS 1. Felt seal: Standard in UK, Europe and Southern Africa. Limited to dn factor Temperature range from -70 C to 100C Very popular Easy to fit Needs to be soaked in oil prior to installation 2. High Temperature packing: A direct replacement for felt in a high temperature application Maximum speed is dn Temperature range -70 C to 260 C 3. Synthetic rubber single lip seal (SRS): Fits into same groove as a felt seal, suitable for wet but not submerge conditions Maximum speed is dn Maximum temp 100 C. Sales Tip of the Month Customer s Goals: 4. Aluminum triple labyrinth seal (ATL): Machined aluminum triple labyrinth seal for high speed and general applications. Maximum temp 100 C. Held tight on shaft using two O-rings Speed is limited to the bearing limits Temperature is -20 C to 100 C O rings can be changed for operating temperatures up to 175 *centigrade. 5. Spring loaded single lip with retaining plate (SRSRP): Suitable for severe splash or completely submerged condition. Standard version 2 m of water and high pressure up to 40m of water. Temperature limits -20 C to 100 C. CONTACT INFORMATION Matthew Tyler Product manager (Head Office) matthewt@bearings.co.za ISO Social Responsibility ISO Quality Management ISO Environmental Management OHSAS Occupational Health and Safety ISO HIV/Aids Management Know your customer and his requirements in order to pre-empt what his needs are. Putting out fires is always an issue when planning is not done. Always bear in mind that it takes weeks for stock to get to head office from the date that it is ordered. ISO Information Systems Security BI 24 HOUR HOTLINE: FOR ALL EMERGENCIES