M249748D/M249710/M249710D Four-Row Tapered Roller Bearings

Model: M249748D/M249710/M249710D
Place of Origin: Zhejiang,China (Mainland)
Brand Name: RNB OR NATURAL
Number of Row: Four row
Type: Roller bearing
Material of race: G20Cr2Ni4A-GB/T3203
Material of roller: G20Cr2Ni4A-GB/T3203
Precision: Class 2

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Product Description

Payment & Shipping Terms Supply Capacity
Payment Terms:L/C, T/T, WUProduction Capacity:100000 Piece/Pieces...
Min. Order:1 Piece/PiecesPacking:RNB OR Industrial...
Means of Transport:Ocean, AirDelivery Date:35 days

Four-Row Tapered Roller Bearings   M249748D/M249710/M249710D

Dimension: 254*358.775*269.875 mm,   Weight: 85.9kg.

Four-row tapered roller bearings provide maximumcapacity in minimum space, combining the inherenthigh-load,radial/thrust capacity and direct/indirect mounting variablesof tapered roller bearings.

Their main application is on the roll necks of rolling millequipment.Allfour-row bearings are supplied as pre-set matchedassemblies with allcomponents identified to ensure correct installations equence.

TQO (Straight Bore Four-Row Assembly)

TQO bearings are directly mounted and comprised of two double innerraces, two single and one double outer race, with an inner race spacerand two outer race spacers.

Slots in the inner race spacer permit lubricant to flow from the bearingchamber to the roll neck.The inner race spacers are hardened tominimizeface wear.

Size range:
ID 50.800 mm to 1500.000 mm (2.0000 in. to 59.0551 in.)
OD 83.337 mm to 2032.000 mm (3.2810 in. to 80.0000 in.)

Design Attributes

Two double cones, two single cups and a double cup with a cone spacer and two cup spacers.
Spacers have slots or holes for lubrication.
Cone spacers are hardened to reduce face wear.
Numbered serially to assure correct installation sequence.

Boundary DimensionsBasicload ratingsDesignationsMass
dDTBrmin(Axial)rmin(Radial)r1min(Axial)r1min(Radial)CrCorkg
mminmminmminmminmmKN
460*
625
421
421
3399805018400M271149D/M271110-M271110D375


625*
421
421
1.51.56.46.4645016900M271149DW/M271110-M271110D-XRS/C9YB2366
46218.189596.923.5330.213330.2133.33.36.46.45400145003806/462276
479.42518.875679.4526.75495.319.5495.319.53.33.36.46.4985025000M272749D/M272710-M272710D586
482.619615.9524.25330.213330.2136.46.46.46.4486015200LM272249DW/LM272210-LM272210D252


615.9524.25400
400
5.35.36.46.44700160003806/482.6-XRS/HCEC9YAB299


615.9524.25406.416330.213116.46.44860152003806/482.6-1251


615.9524.25419.116.5330.2133.53.56.46.45000152003806/482.6-2263


615.9524.25402.0515.8287402.0515.8287116.46.44800136003806/482.6-3246


615.9524.2542016.535442016.5354116.46.45500171003806/482.6-4292


63024.803142016.535442016.53543.33.36.46.46400190003806/482.6-5343


6352542116.574842116.5748336.46.4725020200M272449D/M272410-M272410D362


647.725.5417.51216.4375417.51216.43753.33.36.46.4720019800M272647DW-M272610-M272610D401


622.324.5365.12514.375365.12514.37533335500170003806/488X4266
489.02619.253634.87324.995320.67512.625320.67512.6253.33.33.33.3475012000LM772749DW/LM772710-LM772710D249
501.6519.75673.126.5400.0515.75387.3515.253.33.36.46.4700019000EE641198D/641265-641266D687


711.228520.720.5520.720.53.33.36.46.4969026900M274149DW/M274110-M274110D687
50820695.32527.375415.92516.375415.92516.3753.33.36.46.4580019600LM274049DW/LM274010-LM274010D464


76230463.5518.25463.5518.256.46.46.46.4980027000EE531201D/531300-531301XD750
514.3520.25673.126.5422.27516.625422.27516.6253.33.36.46.4700021000LM274449DW/LM274410-LM274410D408
519.11220.438736.629536.57521.125536.57521.1253.33.36.46.41080030000LM275349D/LM275310-LM275310XD748
520.720.5711.228400.0515.75400.0515.753.33.36.46.4720019500LM275349D/LM275310-LM275310XD459
536.57521.125761.87329.995558.822558.8223.33.36.46.41080031500M276449DW/M276410-M276410D832
558.822736.629322.26512.6876322.26812.68773.33.36.46.4620016000EE8432DW/843290-843291D372


736.629409.57516.125409.57516.1253.33.36.46.4645019800LM377449DW/LM377410-LM377410D478


736.629455.61217.9375457.2183.33.36.46.4840023000LM277149DA/LM277110-LM277110D520
571.522.5812.832593.72523.375593.72523.3753.33.36.46.41180031500M278749DW/M278710-M278710D998
584.223730.2528.75342.913.5349.2513.751.51.53.33.36600165003806/584.2328


76230396.87515.625401.63815.81253.33.36.46.4750022300LM778549DW/LM778510-LM778510D486


901.735.5523.0820.5937539.74721.24993.33.39.79.71280027500EE665231D/665355-665336D1250
558.822736.629409.57516.125409.57516.1253.33.36.46.4643020500LM377449D/LM377410-LM377410D/HE460


736.629409.57516.125409.57516.1253.33.36.46.4643020500LM377449D/LM377410-LM377410D/HEC9460
585.78823.063771.52530.375479.42518.875479.42518.8753.33.36.46.4900024200LM278849D/LM278810-LM278810D-XRS600


771.52533.25479.42524.25479.42524.253.33.36.46.41000029800LM278849D/LM278810-LM278810D621
595.31223.438844.5533.25615.9524.25615.9524.253.33.36.46.41720038500M280049D/M280010-M280010D1180
596.923.598038.5827604.83823.8125609.6246.46.412.712.716000360003806/596.91910
603.2523.75857.2533.75622.324.5622.324.58.712.78.36.51400038900M280249DWA6/M280210A6-M280210D1168


857.2533.75622.324.5622.324.53.33.36.46.41400038900M280249D/M280210-M280210XD1168
609.624787.431361.9514.25361.9514.253.33.36.46.4710022000EE649241D/649310-649311D460


813.56232.03622.324.5622.324.53.33.36.46.410500300003806/609.6716


863.634660.426660.4263.33.36.46.41480041000M280349D/M280310-M280310D1230
63525901.735.5654.0525.75654.0525.753.33.36.46.41500044500M281049D/M281010-M281010D1430
646.11225.438857.2533.75542.92521.375542.92521.3753.33.36.46.41130033500LM281049DW/LM281010-LM281010D859
657.22525.875933.4536.75676.27526.625676.27526.6253.33.36.46.41650048500M281649D/M281610-M281610D1580
660.426812.832356.12514.375356.12514.3753.33.36.46.4530019800L281149DW/L281110-L281110D403
679.4526.75901.735.5552.4521.75552.4521.753.33.36.46.41280038500LM281849DW/LM281810-LM281810D980
682.62526.875965.238701.67527.625701.67527.6253.33.36.46.41740050000M282249D/M282210-M282210D1714
685.827876.334.5352.42513.875355.614SPSP6.46.45800145003806/685.8-XRS/HCC9490


876.334.5352.42513.875355.6143.33.36.46.4750019800EE655271DW/655345-655346D506
708.02527.875930.27536.625565.1522.25565.1522.253.33.3SPSP1200038500LM282549DW/LM282510-LM282510D1040
711.228914.436317.512.5317.512.53.33.36.46.4700019200EE755281D/755360-755361D524


914.436390
390
SPSP7.57.57900201003806/711X4-XRS620
714.37528.125101640704.8527.75704.8527.753.33.36.46.41850052500M383240DGW/M383210-M383210D1940
717.5528.25946.1537.25565.1522.25565.1522.253.33.36.46.41300040000LM282847DW/M282810-M282810D1080
730.2528.751035.0540.75755.6529.75755.6529.753.33.36.46.41980020200M283449DW/M283410-M283410D2160
749.329.5990.63960523.818960523.81893.33.36.46.41450045000LM283649D/LM283610-LM283610D1240


1066.842723.928.5736.629SPSP12.712.71950058000EE325296DGW/325420-325421XD2240
762301066.842723.928.5736.629SPSP12.712.72100058000M284148DW/M284111-M284110D2100


1079.542.5787.431787.4314.84.812.712.72180065000M284249DW/M284210-M284210D2490
812.832114345768.3530.25768.3530.256.46.412.712.721000625003806/812.82600
825.532.51168.446844.5533.25844.5533.254.84.812.712.72560076000M285848DW/M285810-M285810D3040
863.6341130.344.5669.92526.375669.92526.3754.84.812.712.71950061500LM286249DW/LM286210-LM286210D2000


1169.9946.0625844.5533.25844.5533.254.84.812.712.723200760003806/863.62690


1181.146.5666.7526.25666.7526.254.84.812.712.72000056500LM286449D/LM286410-LM286410D2140


1219.248876.334.5889354.84.812.712.72790081000EE547341D/547480-547481D3480
877.88834.563122048.0315844.5533.25844.5533.254.84.812.712.725000760003806/877X43090
901.735.51295.451901.735.5914.4364.84.812.712.73000086000EE634356D/634510-634510D4180
938.21336.938127050825.532.5825.532.54.84.812.712.72550081000LM287649D/LM287610-LM287610D3220
939.8371333.552.5952.537.5952.537.54.84.812.712.73150094500LM287849DW/LM287810-LM287810D4500
1003.339.51358.953.5800.131.5800.131.54.84.812.712.727200810003806/1003.33460
1139.8344.8751509.7159.4375923.92536.375923.92536.3754.84.812.712.7330001060003806/1139X44850
1200.1547.251593.8562.75990.639990.6394.84.812.712.737500124000LM288949D/LM288910-LM288910D5640
1346.2531729.7468.1114345114345551212490001620003806/1346.26970



Applications
Low- and medium-speed rolling mills

Four-Row Tapered Roller Bearings

Category: Four row tapered roller bearing

Related Category: Single row tapered roller bearing  Double row Tapered roller bearing