Top self-aligning roller bearings with deck cover type 4S000Z

The table below shows all key dimensions of the 4S000Z series self-aligning top roller bearings.
This top roller bearing is made for boats with steering systems and combines three functions: horizontal self-aligning roller bearing, vertical roller bearing and emergency tiller deck cover. A removable cover is integrated in the bearing flange, which can be removed by a winch handle. Type one emergency tiller connection should be used. The vertical locking ring, running on a ball race, is located at the bottom of the bearing and lock’s onto the shaft with set screws. (All models except up to the 50 mm version is equipped with twin ball races to take the vertical loadings in 2 directions. The 50 mm version and smaller only have a ball race for the down-forces and a gliding bearing for the up-forces)

PART NO. RUDDER
SHAFT dia.
BODY dia. D FLANGE dia. F HEIGHT H max BEND WEIGHT WORKING
LOAD (max)
VERTICAL WORKING
LOAD (max)
4S030Z 30mm 90mm 128mm 132mm 11º 1,2kg 1300kg 300kg
4S030Z-20 30mm 108mm 148mm 138mm 24º 1,5kg 1300kg 300kg
4S035Z 35mm 90mm 128mm 132mm 11º 1,2kg 1500kg 300kg
4S035Z-20 35mm 108mm 148mm 138mm 24º 1,5kg 1500kg 300kg
4S040Z 40mm 90mm 128mm 132mm 11º 1,2kg 1750kg 300kg
4S040Z-20 40mm 108mm 148mm 138mm 24º 1,5kg 1750kg 300kg
4S050Z 50mm 108mm 148mm 136mm 11º 2,0kg 2600kg 400kg
4S050Z-20 50mm 130mm 168mm 145mm 21º 2.1kg 2600kg 400kg
4S060Z 60mm 130mm 168mm 130mm 12º 2,4kg 4200kg 530kg
4S060Z-20 60mm 130mm 168mm 140mm 5º to 21º 2,5kg 4200kg 530kg
4S070Z 70mm 150mm 188mm 147mm 11º 3,3kg 4700kg 590kg
4S080Z 80mm 150mm 188mm 147mm 11º 3,1kg 5100kg 650kg
4S080Z-20 80mm 150mm 188mm 157mm 5º to 21º 3,2kg 5100kg 650kg
4S100Z 100mm 170mm 208mm 147mm 11º 3,6kg 5700kg 800kg
4S100Z-20 100mm 170mm 208mm 162mm 5º to 21º 3,7kg 5700kg 800kg
4S120Z 120mm 190mm 228mm 147mm 11º 4,7kg 7900kg 920kg
4S120Z-20 120mm 190mm 228mm 162mm 5º to 21º 4,8kg 7900kg 920kg
4S140Z 140mm 210mm 258mm 154mm 5,5kg 8800kg 1030kg
4S140Z-20 140mm 210mm 258mm 169mm 5º to 21º 5,6kg 8800kg 1030kg
4S165Z 165mm 246mm 296mm 154mm 7,0kg 9500kg 1100kg

PART NO. RUDDER
SHAFT dia.
BODY dia. D FLANGE dia. F HEIGHT H max BEND WEIGHT WORKING
LOAD (max)
VERTICAL WORKING
LOAD (max)
4S030Z 30mm 90mm 128mm 132mm 11º 1,2kg 1300kg 300kg
4S030Z-20 30mm 108mm 148mm 138mm 24º 1,5kg 1300kg 300kg
4S035Z 35mm 90mm 128mm 132mm 11º 1,2kg 1500kg 300kg
4S035Z-20 35mm 108mm 148mm 138mm 24º 1,5kg 1500kg 300kg
4S040Z 40mm 90mm 128mm 132mm 11º 1,2kg 1750kg 300kg
4S040Z-20 40mm 108mm 148mm 138mm 24º 1,5kg 1750kg 300kg
4S050Z 50mm 108mm 148mm 136mm 11º 2,0kg 2600kg 400kg
4S050Z-20 50mm 130mm 168mm 145mm 21º 2.1kg 2600kg 400kg
4S060Z 60mm 130mm 168mm 130mm 12º 2,4kg 4200kg 530kg
4S060Z-20 60mm 130mm 168mm 140mm 5º to 21º 2,5kg 4200kg 530kg
4S070Z 70mm 150mm 188mm 147mm 11º 3,3kg 4700kg 590kg
4S080Z 80mm 150mm 188mm 147mm 11º 3,1kg 5100kg 650kg
4S080Z-20 80mm 150mm 188mm 157mm 5º to 21º 3,2kg 5100kg 650kg
4S100Z 100mm 170mm 208mm 147mm 11º 3,6kg 5700kg 800kg
4S100Z-20 100mm 170mm 208mm 162mm 5º to 21º 3,7kg 5700kg 800kg
4S120Z 120mm 190mm 228mm 147mm 11º 4,7kg 7900kg 920kg
4S120Z-20 120mm 190mm 228mm 162mm 5º to 21º 4,8kg 7900kg 920kg
4S140Z 140mm 210mm 258mm 154mm 5,5kg 8800kg 1030kg
4S140Z-20 140mm 210mm 258mm 169mm 5º to 21º 5,6kg 8800kg 1030kg
4S165Z 165mm 246mm 296mm 154mm 7,0kg 9500kg 1100kg


The applications for the 4S000Z series bearing:
The 4S000Z series bearings are suitable for all types of hull material. This bearing is the self aligning version of the 42000 type and the perfect solution as top bearing for cruising/racing and racing yachts as it combines a horizontal self aligning roller bearing with a vertical roller bearing and a deck cover. Due to the two way vertical roller bearing arrangement, the rotation of the rudder shaft is extremely smooth, even on racing yachts where the rudder could be lighter than the water so generating an upwards lift. The bearing is ideal as a deck or cockpit floor bearing as it doesn’t extend beyond the deck level, especially when the deck flange is let into the (teak) deck. In combination with emergency tiller arrangement type 1 a quick and save access to the emergency steering is achieved. The bearing is available in specific sizes, so one should take notice of this when designing the rudder stock.
Recommended torque setting for the lock ring is 7Nm for M6 set screws and 35Nm for M10. This assumes stainless steel 304/A2 cup point set screw, made to DIN916/ISO4029 fitted to a dry, ungreased thread. It is recommended to pre-drill the stock at set screw locations to ensure a durable lock ring fit.The bearing can be sealed by a rudder tube or double lip seal inside the top register.


Service information:

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