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We can supply various kinds of high quality Deep Groove Ball Bearings. Bearing Specifications: 1) Bearing type: 6000, 6200, 6300, 6800, 6900, R and 16series 2) Bore diameter range: 4mm to 650 mm 3) Shield/closure: RS, 2RS, Z, ZZ, OPEN
4) Snap ring: N, NR 5) Tolerance codes: ABEC-1, ABEC-3, ABEC-5, ABEC-7 6) Vibration level codes: V4, V3, V2, V1 7) Internal clearance codes: C0, C2, C3, C4, C5 8) Packing: Plastic tube packing or individual box packing.
VA201 design for the most common applicationsBearings of the VA201 design are not sealed and have a pressed steel cage. They are lubricated with a polyalkylene glycol/graphite mixture which can be used at temperatures between –40 and +250 °C. At temperatures above +200 °C, dry lubrication pertains.
2Z/VA201 design with protective shields The bearings of the 2Z/VA201 design are of the same design as the VA201 bearings but have protective shields on both sides to prevent the ingress of solid contaminants. Additionally, these bearings have twice the amount of the polyalkylene glycol/graphite mixture as the open VA201 design bearings.
Note Bearings of the 2Z/VA201 design are not recommended for mainly non-rotating applications.
2Z/VA208 design for high demandsBearings of the 2Z/VA208 design have a segmented cage of graphite and can be used at temperatures between –150 and +350 °C. The segments separate the balls and also provide the necessary lubrication. The bearings are fitted with two shields, which axially guide the cage segments and prevent the entry of solid contaminants. The minute quantities of graphite powder released by the cage during rotation provide adequate lubrication for the bearing.
An additional advantage of these bearings is that they are environmentally friendly. Even at maximum temperatures, no dangerous gases or vapours are emitted.
2Z/VA228 design for top requirementsThe 2Z/VA228 design bearings are the "top-of-the-range" among SKF products for high temperatures. They are fitted with a "coronet" cage of pure graphite, which opens up additional application areas for these high-temperature bearings. The coronet cage is a unique SKF development and permits operating speeds of up to 100 r/min.
2Z/VA216 design for aggressive environmentsFor bearing arrangements where the environment is particularly aggressive, bearings of the 2Z/VA216 design are recommended. These bearings are charged with a creamy-white multi-purpose grease based on a fluorized polyether oil mixed with PTFE, for operating temperatures from –40 to +230 °C. Otherwise the bearings have the same design as 2Z/VA201.
For normal cases, the lubricant fill is between 25 and 35% of the free space in the bearing. On request other filling grades can be supplied.
High temperatures Deep Groove Ball Bearing 6005/VA201