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

Type 44000 bearing

The table below shows all key dimensions of the 44000 series self-aligning top roller bearings. To achieve the high working load above 79 mm, two sets of rollers are mounted.
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PART NO.	RUDDER SHAFT dia.	BODY dia. D	FLANGE dia. F	HEIGHT H	WEIGHT	WORKING LOAD (max)
44041-44050	41 to 50mm	119mm	174mm	116mm	2,2kg	3400kg
44051-44060	51 to 60mm	119mm	174mm	116mm	1,9kg	4000kg
44061-44169	61 to 69mm	139mm	198mm	121mm	2,7kg	4500kg
44070-44079	70 to 79mm	139mm	198mm	121mm	2,4kg	5100kg
44080-44084	80 to 84mm	169mm	229mm	156mm	4,8kg	8800kg
44085-44090	85 to 90mm	169mm	229mm	156mm	4,8kg	8900kg
44091-44100	91 to 100mm	169mm	229mm	156mm	4,2kg	9800kg
44101-44104	101 to 104mm	198mm	269mm	176mm	7,3kg	12800kg
44105-44114	105 to 114mm	198mm	269mm	176mm	6,9kg	14000kg
44115-44120	115 to 120mm	198mm	269mm	176mm	6,4kg	15300kg
44125-44134	125 to 134mm	228mm	298mm	178mm	9,8kg	16600kg
44335-44144	135 to 144mm	228mm	298mm	178mm	9,0kg	17400kg
44145-44154	145 to 154mm	228mm	298mm	178mm	7,7kg	18200kg
44+shaft dia.	155 to 300mm	CUSTOM MADE	CUSTOM MADE	CUSTOM MADE		CUSTOM MADE

The applications for the 44000 series bearing:

The 44000 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 a heavy duty aluminium outer housing with an inside sphere turned out. A two piece delrin ball is located in the sphere. The inner housing is pushed inside the delrin ball. Above 79 mm, two sets of rollers are mounted to achieve a very high working load. As the delrin ball is mounted in two parts, the bearing is not watertight between the outer housing and inner housing, so the bearing should either be used under deck or a special cover will have to be made to achieve a proper sealing.
This bearing is normally used in applications where the working load of the 4SF000 type bearing isn't sufficient.

Self-aligning "heavy duty" top roller bearing type 44000