Screw-down bearings

Screw-down bearings

Axial tapered roller bearings for screw-down mechanisms in rolling stands can support extremely high axial forces in one direction. The separable bearings are mounted between the upper chock and the screw-down mechanism. Due to its low friction, these bearings reduce the screw-down forces. Axial tapered roller bearings for screw-down mechanisms have non-standardized dimensions and designations Z-5.TA1 or F-8..TA1. The bearings are available in various designs.
Size range: 200 - 900 mm (Outer dimension)

Screw-down bearings

Taper roller thrust bearings of this type must be able to accommodate extremely heavy axial loads and also permit angular movement of the screw spindle with respect to the support. The bearings are, therefore, generally of the full complement type and have extremely long rollers of large diameter. To be able to accommodate the alignment movements of the chock without detrimental effect on bearing performance, the bearings have one sphered washer. This may be either the shaft or the housing washer. The necessary alignment movements take place in bearings having a sphered shaft washer above the roller complement between the sphered shaft washer surface and a corresponding concave sphered screw spindle or pressure plate. The pressure plate can also be supplied by FV.

STTRB

Note for the screw down bearing 

Where the housing washer is sphered, the alignment movements are accommodated below the roller complement between the housing washer and the sphered pressure plate. The pressure plate for these bearings is always supplied with the bearing.


FV produces many designs of screw-down bearings for specific application.


TTSX

                                                TTSX 

TTSV

                                                 TTSV



BEARING  CODEBasic dimensions
Weight(kg)Ref. designations
B[mm]B1[mm]F[mm]C[mm]NSKFAG
TTSX150/X1149.225 146.860 127.000 54.97 6.65 149TFX01536626 
TTSX175/X1174.625 172.260 152.400 61.390 10.10 174TFX01537778 
TTSX205/X1203.200 200.840 177.800 75.62 16.80 203TFX01
TTSX220/X1220.000 220.000 195.000 78.00 20.30 220TFX01
TTSX265/X1266.700 264.340 228.600 94.41 36.20 266TFX01
TTSX320/X1320.675 318.310 279.400 110.97 61.50 320TFX01
TTSX380/X1377.825 375.460 330.200 129.01 98.70 377TFX01
TTSX405/X1404.400 407.210 355.600 142.23 127.00 407TFX01
TTSX410/X1409.575 407.210 355.600 142.23 128.00 409TFX01
TTSX440/X1438.150 435.790 381.000 150.67 155.00 438TFX01
TTSX495/X1495.300 492.940 431.800 170.61 225.00 495TFX01
TTSX525/X1523.875 521.520 457.200 176.660 261.00 523TFX01
TTSX535/X1533.400 531.010 457.000 177.80 273.00 533TFX01
TTSX555/X1555.625 553.260 482.600 191.15 318.00 555TFX01524340 
TTSX580/X1581.025 578.660 508.000 193.78 353.00 581TFX01
TTSX580/X2581.025 578.660 508.000 196.65 358.00 581TFX02
TTSX610/X1609.600 607.240 533.400 204.01 409.00 609TFX01
TTSX640/X1641.350 638.990 558.800 212.67 472.00 641TFX01526198 
TTSX695/X1692.150 689.750 495.300 311.45 805.00 692TFX01
TTSX710/X1710.000 710.000 480.000 260.00 706.00 710TFX01
TTSX800/X1800.000 800.000 700.000 250.00 857.00 800TFX01
TTSX850/X1847.600 841.000 650.000 250.00 966.00 847TFX01
TTSX900/X1900.000 930.000 750.000 275.00 1270.00 930TFX01
TTSV150/X1149.225 146.860 127.000 47.62 5.64 149TFV01
TTSV175/X1174.625 172.260 152.400 52.37 10.30 

TTSV205/X1203.200 200.800 177.800 65.07 14.30 203TFV01536716 
TTSV265/X1266.700 264.340 228.600 81.00 30.80 266TFV01524088 
TTSV265/X2266.700 264.340 228.600 86.37 35.50 266TFV02
TTSV320/X1320.675 318.310 279.400 95.25 52.30 320TFV01
TTSV375/X1377.825 375.460 330.200 111.12 84.70 377TFV01524578 
TTSV410/X1409.575 407.210 355.600 122.22 109.00 409TFV01559632 
TTSV440/X1438.150 435.790 381.000 130.18 133.00 438TFV01
TTSV495/X1495.300 492.940 431.800 146.05 191.00 495TFV01
TTSV510/X1508.000 501.650 341.300 165.10 228.00 508TFV01
TTSV525/X1523.875 521.510 457.200 152.40 223.00 523TFV01524105 
TTSV550/X1551.600 539.750 435.500 158.75 258.00 551TFV01
TTSV550/X2554.000 555.000 414.000 190.50 312.00 554TFV01
TTSV550/X3554.000 555.000 465.400 190.50 312.00 554TFV01A
TTSV555/X1555.625 553.260 482.600 165.10 272.00 555TFV01527795 
TTSV580/X1581.025 578.660 508.000 168.28 303.00 581TFV01
TTSV610/X1609.600 607.240 533.400 177.80 353.00 609TFV01
TTSV640/X1641.350 638.990 558.800 184.15 405.00 641TFV01
TTSV880/X1880.000 930.000 627.000 234.95 1090.00 930TFV01


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