New Fashion Design for China Timken Na749/742 D Double Row Tapered Roller Bearing Wholesales and Supplier

Short Description:

● Double row tapered roller bearings are of various construction

● While bearing radial load, it can bear bidirectional axial load

● Radial and axial combined loads and torque loads, which are mainly capable of bearing large radial loads, are mainly used in components that limit the axial displacement in both directions of the shaft and housing

● Suitable for applications with high rigidity requirements. Widely used in the front wheel hub of a car


Product Detail

Product Tags

“Sincerity, Innovation, Rigorousness, and Efficiency” would be the persistent conception of our corporation with the long-term to create collectively with buyers for mutual reciprocity and mutual advantage for New Fashion Design for China Timken Na749/742 D Double Row Tapered Roller Bearing Wholesales and Supplier, We now have exported to far more than 40 countries and regions, which have gained very good reputation from our costumers everywhere in the entire world.
“Sincerity, Innovation, Rigorousness, and Efficiency” would be the persistent conception of our corporation with the long-term to create collectively with buyers for mutual reciprocity and mutual advantage for China Auto Spare Part Bearing, Wheel Hub Bearing, We always insist on the management tenet of “Quality is First, Technology is Basis, Honesty and Innovation”.We are able to develop new products continuously to a higher level to satisfy different needs of customers.

Introduction

Double row tapered roller bearings are two rows of tapered roller bearings, tapered roller bearings are designed to withstand both radial and axial forces of the composite load, mainly used in high stiffness, continuous operation of the occasion, in limited space and compact layout can provide stable performance.

 

Features and Benefits

●High load carrying capacity

Double row tapered roller bearings are suitable for heavy radial and axial loads.

●Axial loads in both directions

Double row tapered roller bearings locate the shaft in both directions with a specific axial clearance or preload.

●High stiffness

Double row tapered roller bearings provide a stiff bearing arrangement.

●Low friction

The optimized roller end design and surface finish on the flange promote lubricant film formation, resulting in lower friction.

●Long service life

The crowned raceway profiles of basic design bearings and the logarithmic raceway profiles of XRL Explorer bearings optimize the load distribution along the contact surfaces, reduce stress peaks at the roller ends, and reduce the sensitivity to misalignment and shaft deflection compared with conventional straight raceway profiles.

●Enhanced operational reliability

Optimized surface finish on the contact surfaces of the rollers and raceways supports the formation of a hydrodynamic lubricant film.

●Consistency of roller profiles and sizes

This provides optimal load distribution, reduces noise and vibration, and enables preload to be set more accurately.

Structure and Features

Double-row tapered roller bearings have a variety of structures, the largest of which is type 35,000, with a double raceway outer ring and two inner rings, and a spacer between the two inner rings. The clearance can be adjusted by changing the thickness of the spacer. This type of bearing can bear both radial load and bidirectional axial load, and can limit axial displacement of the shaft and housing within the axial clearance range of the bearing.

Application

Double row tapered roller bearings are typically used in gearboxes, hoisting equipment, rolling mills and machines in the mining industry, e.g. tunnelling machines.

Parameters

SIZE DIMENSIONS Basic load ratings Fatigue load limit
dynamic static
d[mm] D[mm] B[mm] T[mm] C[kN] C0[kN] Pu[kN]
BT2B 332767 A 101.6 146.05 49.212 38.94 267 375 40.5
331945 228.6 488.95 254 152.4 3143 4500 390
BT2B 328130 260 480 284 220 4330 7350 600
BT2B 328187/HA2 260.35 422.275 178.592 139.7 2240 4050 355
BT2B 332504/HA2 300.038 422.275 174.625 136.525 2177 4750 400
BT2B 332516 A/HA1 317.5 447.675 180.975 146.05 2521 5400 440
331775 B 333.375 469.9 190.5 152.4 2642 5700 465
BT2B 332830 340 460 160 128 2196 4900 400
331981 346.075 488.95 200.025 158.75 2835 6300 510
BT2B 332506/HA2 355.6 501.65 155.575 107.95 1976 4250 345
BT2B 332831 360 480 160 128 2211 5000 405
BT2B 332603/HA1 368.249 523.875 214.312 169.862 3380 7500 585
331606 A 371.475 501.65 155.575 107.95 1976 4250 345
331197 A 384.175 546.1 222.25 177.8 3724 8300 640
BT2-8143/HA1 400 540 170 135 2782 6300 490
BT2B 328389 406.4 539.75 142.875 101.6 1817 4400 345
331656 415.925 590.55 244.475 193.675 4175 9650 720
BT2B 332604/HA1 431.8 571.5 155.575 111.125 1145 5100 405
BT2B 332237 A/HA1 431.8 571.5 192.088 146.05 2847 6950 530
BT2B 332176 A 447.675 635 257.175 206.375 4400 11000 800
331657 479.425 679.45 276.225 222.25 5010 12700 915
331605 B 498.475 634.873 177.8 142.875 2750 7350 540
BT2B 332605 A/HA1 501.65 711.2 292.1 231.775 5500 13700 980
BT2B 332446 536.575 761.873 311.15 247.65 6270 16000 1100
331640 A 558.8 736.6 225.425 177.8 4290 11600 815
BT2B 332447 571.5 812.8 333.375 263.525 6440 16000 1080
331576 B 602.945 787.4 206.375 158.75 4020 10600 750
331500 609.6 820 206.375 158.75 4020 10600 750
BT2B 332493/HA4 635 990.6 339.725 212.725 8090 16000 1060
BT2B 328028/HA1 711.2 914.4 190.5 139.7 3800 9650 670
331554 A 723.9 914.4 187.325 139.7 3800 9650 670
BT2B 331554 B/HA1 723.9 914.4 187.325 139.7 3800 9650 670
331780 A 762 965.2 187.325 133.35 3580 9800 670
BT2B 332625 774.962 1016 266.7 209.63 7197 18000 1160
BT2B 332501/HA5 914.4 1066.8 139.7 101.6 2600 8000 520
BT2B 332780/HA5 1160 1540 400 290 14200 38000 2160
BT2B 328339/HA4 1250 1500 250 190 7370 22400 1320
BT2B 332496/HA4 1778 2159 393.7 266.7 15400 53000 2700
BT2B 332497/HA4 2133.6 2819.4 742 457.2 34700 108000 5000
BT2-8020 2616.2 3048 381 209.55 12300 53000 2450
BT2-8019 3378.2 3835.4 393.7 203.2 15100 63000 2800

“Sincerity, Innovation, Rigorousness, and Efficiency” would be the persistent conception of our corporation with the long-term to create collectively with buyers for mutual reciprocity and mutual advantage for New Fashion Design for China Timken Na749/742 D Double Row Tapered Roller Bearing Wholesales and Supplier, We now have exported to far more than 40 countries and regions, which have gained very good reputation from our costumers everywhere in the entire world.
New Fashion Design for China Auto Spare Part Bearing, Wheel Hub Bearing, We always insist on the management tenet of “Quality is First, Technology is Basis, Honesty and Innovation”.We are able to develop new products continuously to a higher level to satisfy different needs of customers.


  • Previous:
  • Next: