+86-18866882299     admin@bwkbearing.com
PRODUCT DETAILS

loading

Share to:
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
sharethis sharing button

Four-Row Tapered Roller Bearings

Heavy-duty BT4 and BT4B series four-row tapered roller bearings for rolling-mill work rolls and backup rolls.
Availability:
Quantity:
PRODUCT OVERVIEW

Four-Row Tapered Roller Bearings for Rolling Mills

BWK four-row tapered roller bearings are designed for work rolls and backup rolls operating under heavy radial loads, axial loads and impact conditions. The four-row arrangement provides high load capacity in a compact mounting space and supports stable roll positioning.

Available Designs

BT4 and BT4B series bearings are available in different internal designs, clearances and lubrication arrangements. Final selection should be confirmed according to the existing bearing number, dimensions, drawing and operating conditions.


Key Advantages


  • High radial and axial load capacity

  • Suitable for heavy shock loads in rolling mills

  • Compact four-row arrangement

  • Stable roll support and running accuracy

  • Multiple sizes and customized designs available


Models & Dimensions


Model Bore d (mm) Outside Diameter D (mm) Total Width T (mm) Outer Ring Width C (mm) Dynamic Load C (kN) Static Load C0 (kN)
BT4-0040 E8/C355 220.662 314.325 239.712 239.712 2120 4000
BT4-0035 E8/C355 220 295 315 315 1860  4050
BT4-0039 E8/C355 254 358.775 269.875 269.875 3050 5700
BT4-0044 E8/C560 266.7 355.6 230.188 228.6 2320 4650
BT4-0049 E81/C510 279.4 393.7 269.88 269.88 3400 5850
BT4-0048 E8/C475 279.578 380.898 244.48 250 2450 4800
BT4-0015 G/HA1C400VA903 285.75 380.898 244.475 244.475 2200 5500
BT4-0047 E8/C475 285.75 380.898 244.48 250 2450 4800
BT4B 331452 G/HA1 288.925 406.4 298.45 292.45 3580 9000
BT4-0004 G/HA1 304.902 412.648 266.7 266.7 3405 7500
BT4-8093 G/HA1VA901 310 430 310 310 2860 6550
BT4-8182 E9/C675 317.5 422.275 269.875 269.875 3924 7800
BT4B 332647 G/HA1 330.2 444.5 301.625 301.625 3690 9650
BT4-8113 E2/C500 330.302 438.023 247.65 254 3625 6400
BT4-8160 E9/C475 343.052 457.098 254 254 3600 7100
BT4-8070 G/HA1VA901 347.662 469.9 292.1 292.1 3910 8500
Dimensions and load ratings are reference data. Final specifications should be confirmed against the required bearing designation, drawing and operating conditions before quotation.


Applications


  • Hot rolling mills

  • Cold rolling mills

  • Plate and strip mills

  • Bar and wire rod mills

  • Work rolls, intermediate rolls and backup rolls


Selection Information

For accurate selection, please provide the bearing model, d × D × B/T dimensions, drawing, roll speed, load conditions, lubrication method, required clearance and precision grade. Dimensions and load ratings shown are reference data and should be confirmed before quotation.



Previous: 
Next: