Marine Equipment for Boats and Boat Builders, Boat Hardware and Fittings

Type 4SF000 bearing

The table below shows all key dimensions of the 4SF000 series self-aligning top roller bearings. This bearing type is watertight between the outer housing and inner housing due to the use of O-rings. The measurement S is the outside diameter for the lip seal for sealing from above.
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PART NO.	RUDDER SHAFT dia.	BODY dia. "D"	SEALS dia. "S"	FLANGE dia. "F"	HEIGHT "H"	WEIGHT	WORKING LOAD (max)
4SF040-4SF049	40 to 49mm	108mm	70mm	148mm	35mm	1,3kg	2100kg
4SF050-4SF059	50 to 59mm	108mm	80mm	148mm	35mm	1,0kg	2600kg
4SF060-4SF069	60 to 69mm	128mm	90mm	168mm	41mm	1,6kg	4200kg
4SF070-4SF079	70 to 79mm	128mm	100mm	168mm	41mm	1,2kg	4900kg
4SF080-4SF089	80 to 89mm	148mm	110mm	188mm	41mm	2,0kg	5600kg
4SF090-4SF099	90 to 99mm	148mm	120mm	188mm	41mm	1,4kg	6200kg
4SF100-4SF109	100 to109mm	168mm	130mm	218mm	41mm	2,3kg	6800kg
4SF110-4SF119	110 to 119mm	168mm	140mm	218mm	41mm	1,7kg	7300kg
4SF120-4SF129	120 to 129mm	188mm	150mm	238mm	41mm	2,7kg	7900kg
4SF130-4SF139	130 to 139mm	188mm	160mm	238mm	41mm	2,0kg	8400kg
4SF140-4SF149	140 to 149mm	208mm	170mm	258mm	41mm	3,0kg	8800kg
4SF150-4SF159	150 to 159mm	208mm	180mm	258mm	41mm	2,2kg	9300kg
4SF160-4SF169	160 to 169mm	246mm	190mm	296mm	51mm	4,8kg	9500kg
4SF170-4SF179	170 to 179mm	246mm	200mm	296mm	51mm	3,9kg	9700kg
4SF180-4SF189	180 to 189mm	266mm	210mm	316mm	51mm	5,3kg	10300kg
4SF190-4SF199	190 to 199mm	266mm	220mm	316mm	51mm	4,2kg	10800kg
4SF200-4SF209	200 to 209mm	286mm	230mm	336mm	51mm	5,8kg	11400kg
4SF210-4SF219	210 to 219mm	286mm	240mm	336mm	51mm	4,7kg	12800kg
4SF220-4SF229	220 to 229mm	306mm	250mm	356mm	60mm	7,0kg	12500kg
4SF230-4SF239	230 to 239mm	306mm	260mm	356mm	60mm	5,8kg	13100kg
4SF240-4SF249	240 to 249mm	326mm	270mm	376mm	60mm	7,7kg	13700kg
4SF250-4SF259	250 to 259mm	326mm	280mm	376mm	60mm	6,4kg	14200kg
4SF260-4SF269	260 to 269mm	346mm	290mm	396mm	60mm	8,2kg	14800kg
4SF270-4SF279	270 to 279mm	346mm	300mm	396mm	60mm	6,9kg	15400kg
4SF280-4SF289	280 to 289mm	366mm	310mm	416mm	60mm	8,9kg	16000kg
4SF290-4SF299	290 to 299mm	366mm	320mm	416mm	60mm	7,5kg	16500kg

The applications for the 4SF000 series bearing:

The 4SF000 series bearings are suitable for all types of hull material. This bearing type combines a very simple installation with a very smooth operation under all circumstances as the bearing will always be aligned to the rudder shaft. The bearing consists of an aluminium outer housing with an inside sphere turned out. A one piece delrin ball is located in the sphere and is sealed to the outer housing by an O-ring. The inner housing is pushed inside the delrin ball and also sealed with an O-ring. This construction creates a watertight situation between the rotating inner housing and the fixed outer housing. The inner housing will always have one set of rollers. It's therefore important to check that when the bearing diameter is above 90 mm, the maximum working load isn't exceeded. If the calculated working load is above the maximum working load, one should choose bearing type 44000. The disadvantage of this bearing is the fact that top of the bearing, the rudder stock and locking ring stand out above deck. If this is not acceptable, one should choose the bearing type 4S000Z or use it under deck.

Self-aligning top roller bearings type 4SF000