longer life longer time between maintenance raw material and sintering conveyor effectively prevents penetration of foreign material sealed spherical roller bearings wa type cat no 3702/e wear cut to 1/20 converter trunnion general equipment dividing in two shortens time required for changing super large-sized split spherical roller bearings double-fractured cat no 2250/e eliminates need to supply grease constant velocity joint cat no 5603/e time required for changing cut to 1/10 3
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for supporting tube dryer for raw materials conveyor pulley cat no 2250/eo super large-sized plummer block plummer block cat no 2250/eo colossal plummer block is the largest example of ntn manufacturing outer dimensions 2150 h x 2750 l x 1100 mm w weight 15,200 kg bearing 240/1180k30 ¡design emphasizes strength manufactured under the strictest quality control ¡offers large selection including irregular shapes flat bottom and labyrinth seal after sealed test after open test for raw materials conveyor pulley for raw materials conveyor cat no.3702/eo sealed spherical roller bearings wa type bearing unit cat no 2400/eo compact sealed spherical roller bearings offer longer lasting grease lubrication and longer time between maintenance inspections in environments exposed to excessive dust ¡effectively prevents penetration of foreign matter ¡can be mounted on standard plummer blocks ¡seal design enables grease to be added ¡superior sealed bearing unit uses rubber seal and slinger ntn original
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for pallet cart or pressure roll sealed double row cylindrical roller bearings cat no 2250/eo for pallet cart or wheel section sealed double row tapered roller bearings cat no 2250/eo ¡uses compact complex dust lip seal to realize both high resistance to dust and high load capacity ¡2-piece inner ring is of non-separable construction due to fastening ring facilitates maintenance ¡uses special seal to realize longer life by preventing sintering powder to penetrate ¡employs carburized materials of sufficient thickness to maintain outer ring strength ¡2-piece inner ring is of non-separable construction due to fastening ring facilitates maintenance split spherical roller bearing drive gear plummer block sprocket for sprocket shaft split spherical roller bearings double-fractured cat no 2250/eo ¡enables bearings to be changed without removing large diameter drive gears dramatically reduces cost and time required for changing bearings ¡can be easily modified from one-piece bearing to split
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for converter and trunnion support super large-sized split spherical roller bearings double-fractured cat no 2250/eo ¡using a split bearing between converter and pull gear dramatically reduces time required for changing the bearing it takes only 1/10 the time it takes to change a one-piece bearing ¡bearing can be designed to fit existing housing bearing can be easily modified photograph outer dimensions 1120 inner diameter x 1400 inner diameter x 1540 outer diameter x 525/355 mm width 1900 outer diameter x 880/530 mm width max actual dimensions for converter and trunnion support super large-sized spherical roller bearings cat no 2250/eo ¡one-piece bearing the bearing offers easy replacement and is still used for non-drive bearing 7
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for free side bearing of guide roll for neck of frame guide roll for guide roll cylindrical roller bearings with self-aligning rings cat no 2250/eo ¡spherical outer ring diameter and alignment inner diameter offers easy alignment ¡general bearing shape maximizes rated load ¡allows axial shaft movement due to heat expansion used as free side bearing split cylindrical roller bearings and water cooling jacket type housing cat no 2250/eo ¡multiple layer seal construction prevents penetration of water and scale ¡general bearing shape maximizes rated load ¡allows axial shaft movement due to heat expansion ¡uses water-cooled jacket housing to suppress temperature rise of the bearing long life spherical roller bearings for high temperature use lh-series [symmetrical roller cat no 3027/eo ¡uses newly developed long-life high temperature bearing material stj2 to realize longer life at high temperatures 200c° as well as room temperature ¡uses symmetric rollers to maximize rated load for pinch gu
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primarily for work roll primarily for radial load bearing of backup roll sealed four row tapered roller bearings large size long operating life ea bearings cat no 3024/eo ¡realizes three times longer machine life than standard carburized steel bearings when used on actual machine continuous hot rolling mill ¡sealed type bearing doesn t require greasing and effectively improves the environment no grease leaking four row cylindrical roller bearings cat no 2250/eo ¡change to ea enables longer life ¡uses pin type cage to maximize rated load and further extend life primarily for axial load bearing of backup roll for pressure screw down cat no 2250/eo double row tapered roller bearings tapered roller thrust bearings cat no 2250/eo ¡uses pin type cage to maximize rated load and further extend life ¡contact angle made into steep gradient to maximize performance for axial loads ¡general bearing shape maximizes rated load ¡inner ring surface is spherical to fit pressure screw shape 9
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for backup roll bearings of special multi-stage rolling mills for backup roll bearings of special multi-stage rolling mills open type backing roll bearings for sendzimir cold strip mill cat no 2250/eo ¡because it is directly used for backup roll the bearing is stronger and has a thicker outer ring ¡mutual difference of assembly thickness for bearings mounted on same shaft is controlled to be extremely small ¡because high precision is demanded under heavy loads the bearing is manufactured for high load capacity and high precision sealed type backing roll bearings for sendzimir cold strip mill cat no 2250/eo ¡uses seal to enable use of special bearing lubricating oil realizes longer bearing life ¡enable recovery of waste oil does not affect rolled materials ¡enables use of low viscosity rolling oil for hot run table constant velocity joint bc coupling type long shaft series cat no 5603/eo ¡type sealed with rubber boots with superior sealing performance does not require grease to be added
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for backup roll or formed steel rolling mills large-sized four row tapered roller bearings pin type cages cat no 2250/eo ¡uses pin type cage to increase rated load and realize longer life ¡change to ea enables longer life outer protective cover flashing ring inner protective cover joint main body for down coiler wrapper roll mechanical metal seal type cvj constant velocity joint seal outer ring seal inner ring cat no 5603/eo coil spring ¡cvj with mechanical metal seal for severe environments such as high temperature water and scale for skin pass mill constant velocity joint large-sized doj cat no 5603/eo ¡type sealed with rubber boots with superior sealing performance does not require grease to be added ¡cvj eliminates chattering mark on rolling surface applicable cvj #250 725 11
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for crankshaft of pilger mill for wire material rolling guide roller split cylindrical roller bearings cat no 2250/eo ¡because it is for crankshafts construction allows only split bearing to be mounted ¡has cage strength and load capacity that can resist impact of cranking bearings with solid grease deep groove ball bearings +solid grease cat no 3022/eo ¡because it is sealed with solid grease thermosetting grease grease does not leak out even if the bearing is penetrated by rolling water enables longer life ¡has proven results for extending life of guide rollers for wire rolling etc thrust block for piercer/elongator 12
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for support bearings for various types of rolls for support bearings for various types of rolls long life spherical roller bearings for high cat no 3027/eo temperature use lh-series ¡offers 3.5 times longer life than standard bearing steel even when used at room temperature ¡enhanced strength for resisting surface damage peeling smearing sealed spherical roller bearings wa type cat no 3702/eo ¡grease is sealed in by us there is no need to add grease when using ¡because the bearing has a rubber contact seal large quantities of grease do not accumulate in the plummer block when grease is added so grease does not leak out for roll drive in furnace constant velocity joint bc coupling type cat no 5603/eo ¡thermal expansion of furnace role absorbed by cvj plunging applicable cvj #75 200 ¡contributes to cleanliness and maintenance of environment ¡sealed with boots with superior sealing performance does not require grease to be added tension leveler roll unit cartridge unit cat no 2250/eo ¡
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insulation bushing insulation washer flange joint main body partition flange insulation plate washer ring for support bearings for various types of rolls for various roll drive plummer block with solid grease cat no 3022/eo insulation type cvj cat no 5603/eo ¡because it is sealed with thermosetting grease grease does not leak out or get on other parts ¡grease does not have to be added so greasing labor can be eliminated ¡insulated cvj for preventing electric corrosion due to fault current with insulation in joint main body and flange joint ¡facilitates replacement of insulation parts for tension reel constant velocity joint large-sized doj cat no 5603/eo ¡this cvj can accept a cvj maximum 300 mm stroke in the axial direction applicable cvj doj350 625 backup unit nkz type bub type ¡labyrinth construction and low contact seal realize both low torque and tight sealing ¡if even lower torque is necessary a roll unit bub type that uses deep groove ball bearings only is available ¡because i
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