Productomschrijving
ABEC 3 LLB : Onze meest populaire afdichting, bestaande uit een rubberen afwerking met een metale kern. In tegenstelling tot de standaard 2RS, gaan wij een beetje verder door het machinaal plaatsen van een inkeping in de binnenste ring, daar waar de dichting kan draaien met een prima efficiëntie en een weerstand tov een mindere lager. Eerder dan een enkele «lip» van een dikke afdichting die schuurt tegen een oneffen oppervlak, maakt het type LLB gebruikt 2 lippen van afdichtingen, fijn zoals een scheermesje dat glijdt in een inkeping met een licht contact. De buitenste «lip» houdt water en onzuiverheden buiten, terwijl de binnenste dichting het vet behoudt voor een soepele rotatie en lange intervallen tussen de onderhoudsbeurten.
ArtikelnummerBB6903LLBEAN810191012511MerkenEnduroLagerhoogte (mm)7Binnendiameter lager (mm)17Buitendiameter lager (mm)30TypeABEC 3 MAX Product Description Carefully manufactured, highly precise: the 6903 bearings by Enduro Bearings You can choose between ABEC 3 steel bearings (type 1), MAX bearings (type 2) and stainless steel bearings (type 3). ABEC 3 bearings from Enduro Bearings feature 10th-degree chrome steel balls that are twice as round as the industry standard, and manufactured to the highest standard. The treads are made of a 52100 carbon chrome steel alloy that is vacuum-generated and then hardened for extra strength and durability. A high-gloss polish ensures precision and low noise. MAX bearings are characterised by a 35 to 40 % higher load capacity than standard radial bearings. For 20 years Enduro Bearings has been manufacturing them specifically for use on mountain bike shocks. As its name indicates, MAX bearings are fitted with the maximum possible number of balls. The grooves in the races are deeper to accommodate the multiple lateral turning forces at the MTB rear pivot. The stainless steel bearings from Enduro Bearings are based on bearing balls and running surfaces made of 440C stainless steel. This material ensures maximum corrosion resistance in critical applications and environments. Stainless steel has 20% less load capacity than the 52100 chrome steel alloy used in most other Enduro Bearings, but it is far superior in terms of rust resistance. Seals and CRC marine grease provide additional water resistance. If you live in a rainy area and/or you don't leave your bike in the rain, 440C stainless steel bearings are for you. They can also be useful for headsets, as drops of sweat may be a problem there. Specifications:Dimensions (Inner x Outer x Width):17 mm x 30 mm x 7 mmDesignation:6903Models:Type 1: Design:deep groove ball bearingsTolerance:ABEC 3Recommended Use:hubs, bottom brackets, headsetsInner Race Material:steel (52100)Outer Race Material:steel (52100)Ball Material:steelSeals:LLBBasic static load rating:2.1 kN (477 lbs)Manufacturer Number:6903LLB Type 2: Design:deep groove ball bearingsTolerance:ABEC 3 / ABEC 1Recommended Use:Suspension pivots, shocksInner Race Material:steel (52100)Outer Race Material:steel (52100)Ball Material:steelSeals:LLUBasic static load rating:3.4 kN (763 lbs)Manufacturer Number:6903LLUMAX Type 3: Design:deep groove ball bearingsTolerance:ABEC 3Recommended Use:hubs, bottom brackets, headsetsInner Race Material:stainless steel (440C)Outer Race Material:stainless steel (440C)Ball Material:stainless steel (440C)Seals:LLBBasic static load rating:1.7 kN (381 lbs)Manufacturer Number:S6903LLBFeatures:Type 1: ABEC 3 bearings with riveted steel ball cage for more durabilitychrome steel balls 10th degree = circularity is 10/1,000,000"race grooves made of carbon-chrome steel alloy, heat and cold treated (down to -190° C), minimum hardness Rockwell HRC 62, polishedLLB: widely used seal type made of nitrile rubber with steel insert, in a groove in the inner race (labyrinth bearing), two super thin sealing lips; the outer one keeps out water and contaminants, the inner one retains greaseLevel 3 in the rating of the Annular Bearing Engineer's Committee (ABEC) in terms of manufacturing tolerances and noise development Type 2: MAX bearing (MAX = maximum number of balls, without cage or partitions) with 35 % higher load capacity than standard bearings and reduced ease of movementchrome steel balls 10th degree = circularity is 10/1,000,000"race grooves made of carbon-chrome steel alloy, heat and cold treated (down to -190° C), minimum hardness Rockwell HRC 62, polishedLLU: Seal type with double lip, in a groove in the inner race; particularly resistant to dirt and dust due to increased pressure, 90% grease filling rate (Almagard Extra High Pressure Grease)Level 1 rating from the Annular Bearing Engineer's Committee (ABEC) in terms of noise, manufacturing tolerances correspond to level 3 Type 3: stainless steel bearings with superior corrosion resistance but lower load capacity for use in wet conditionsstainless steel balls 10th degree = roundness is 10/1,000,000"LLB: widely used seal type made of nitrile rubber with steel insert, in a groove in the inner race (labyrinth bearing), two super thin sealing lips; the outer one keeps out water and contaminants, the inner one retains greaseLevel 3 in the rating of the Annular Bearing Engineer's Committee (ABEC) in terms of manufacturing tolerances and noise developmentContents:1 x Enduro Bearings 6903 17 mm x 30 mm x 7 mm ball bearing Weight: universal | type 1: 17.1 g universal | type 2: 17.6 g universal | type 3: 17.1 g Manufacturer: Enduro Bearings 650 Lighthouse Ave. #120 Pacific Grove CA 93950 USA info@endurobearings.com Distributor: Cosmic Sports GmbH Leyher Straße 47 90763 Fürth Germany info@cosmicsports.de
