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