Tapered Cylindrical Roller Thrust Bearings

   

 

Designation

Boundary Dimension(mm)

Basic load ratings

Limiting Speed

r/min

Mass

New Code

Old Code

d

D1min

D

d1max

T

rsmin

Ca(KN)

Coa(KN)

Grease

Oil

(Kg)

T661 - 170 - 305 - 70.35 6 - - 400 560 21.4
68TR - 174.625 - 358.775 - 82.55 6.4 - - 350 480 42.8
T709   177.8 - 43.8 - 101.6 3.3 - - 300 400 83.4
99440 9019440 200 200.3 400 - 122 5 1720 7226 300 400 75
- 19742F 210 - 458.1 - 122 11 - - 290 390 117.3
91742 19742 - 210.3 460 - 122 7.5 2870 14450 290 390 107
91742DS 219742   210.3 460 - 150 7.5 2870 14450 290 390 134
351019C - 220 236 300 - 96 2 403 1769 - - 20
353005 - 250 275 380 - 100 2 865 4647 - - 41.1
99452 9019452 260 260.3 480 - 132 6 - - 160 220 112.7
350981C - 260 285 360 - 92 2 573 2865 - - 28
91754 19954 270 270.5 550 549.5 130 8 - - 140 190 159
99456 9019456 280 - 520 - 145 9.5 - - 140 190 157.6
99464 9019464 320 320.4 580 - 155 7.5 3740 17537 110 160 185
99476 9019476 380 380.4 670 - 175 7.5 4710 22870 85 120 274
- 249976Y 380 460 680 - 140 5 4460 8230 - - 217
BFSB35324F - 749.3 749.5 952.5 954.8 127 6.4 5550 24000 80 110 230.4
917/1290 197/1290 1290 1291 1550 - 134 6 6970 55950 75 100 495

 

Tapered cylindrical roller thrust bearings
LYNB tapered cylindrical roller bearings enable axially very compact bearing arrangements to be produced which can carry very heavy axial loads, are insensitive to shock loads and are stiff. LYNB produces single direction tapered roller thrust bearings and double direction tapered roller thrust bearings. The screw-down bearings constitute a special design of single direction tapered roller thrust bearing and have a full complement of rollers. They are used for rolling mill screw-down arrangements. LYNB tapered roller thrust bearings of the double direction type are mainly used together with multi-row cylindrical roller bearings in rolling mill applications. Those bearings with a plane shaft washer are the more popular as they are able to accommodate slight eccentricities of the shaft with respect to the housing bore, of the order of the radial internal clearance of the radial bearing with which they are used. A spacer sleeve is arranged between the two housing washers. This is dimensioned so that the cover screws of the chock can be fully tightened and no special spring adjustment of the bearing is required.
LYNB tapered roller thrust bearings are produced with the logarithmic contact profile between raceways and rollers to guarantee optimum stress of distribution in the bearing, thus enhancing life.
LYNB tapered roller thrust bearings with cage are of separable design so that the two washers and the roller and cage thrust assembly can be mounted separately and easily. The full complement screw-down bearings are held together by special retaining components and , to simplify handling, the washers have threaded holes for eye bolts.
▲ LYNB can design and manufacture many other similar structures in accordance to the special and particular requirements of their customers’. If our customer’s have specific requests then the customer should identify the structure, and mounting dimensions that are required. Please contact the LYNB Technical Center if you need any assistance in this area.     
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