Double Row Tapered Roller Bearings

ZHIO® tapered roller bearings are produced by ZHIO® in many designs and sizes to match their many uses.These can be grouped as follows
- single row tapered roller bearings (metric size)
- single row tapered roller bearings (inch size)
- double row tapered roller bearings
Design Features
Tapered roller bearings are designed to take the combination of radial and axial load.
Tapered roller bearings are available in both inch size and metric size.
Tapered roller bearings have separable outer ring and inner ring assembly, interchangeable, easy to fit and maintenance.
ZHIO® precision tapered roller bearings are designed to reach V1 grade noise level, which make the quieter running of automobile engine and gearbox.

ZHIO® tapered roller bearings have tapered inner and outer ring raceways between which tapered rollers are arranged. The projection lines of all the tapered surfaces meet at a common point on the bearing axis. Their design makes tapered roller bearings particularly suitable for the accommodation of combined (radial and axial) loads. The axial load carrying capacity of the bearings is largely determined by the contact angle ; the larger contact angle the greater axial load carrying capacity .
Tapered roller bearings are generally separable, i.e. the cone, consisting of the inner ring with roller and cage assembly, can be mounted separately from the cup (outer ring).
ZHIO® tapered roller bearings have the logarithmic contact profile that provides optimum stress distribution over the roller/raceway contacts. The special design of the sliding surfaces of the guide flange and large roller ends considerably promote lubricant film formation in the roller end/flange contacts. The resulting benefits include increased operational reliability and reduced sensitivity to misalignment.
ZHIO® Tapered Roller Bearings have tapered inner and outer ring racesways between which tapered rollers are arranged.Both of which have single and double row structures.With the higher precision than P5 standard, they have high dimension and running accurancy accordingly. Tapered roller bearings with high speed and long lifespan are always used in Automobile, Gearbox, Main shaft of machine tool, Construction machineries, Rolling mill equipment.
Cages
ZHIO® tapered roller bearings are fitted with one of the following cages.
- A pressed window-type steel cage, roller centred.
- An injection moulded window-type cage of glass fibre reinforced polyamide 6, 6, roler centred.
- A steel pin-type cage

Dimension(mm) Radial Load
Model inside Outside Height Dynamic Static Maximum Speed Weight
BT2B 328339/HA4 1250 mm 1500 mm 1752.67 lb
BT2B 332780/HA5 1160 mm 1540 mm 4188.78 lb
BT2B 332501/HA5 914.4 mm 1066.8 mm 418.88 lb
BT2B 332625 774.962 mm 1016 mm 1157.43 lb
331780 A 762 mm 965.2 mm 639.34 lb
BT2B 331554 B/HA1 723.9 mm 914.4 mm 551.16 lb
331554 A 723.9 mm 914.4 mm 551.16 lb
BT2B 328028/HA1 711.2 mm 914.4 mm 584.22 lb
331500 609.6 mm 820 mm 643.75 lb
331576 B 602.945 mm 787.4 mm 396.83 lb
BT2B 332447 571.5 mm 812.8 mm 1146.40 lb
331640 A 558.8 mm 736.6 mm 330.69 lb
BT2B 332446 536.575 mm 761.873 mm 947.99 lb
BT2B 332605 A/HA1 501.65 mm 711.2 mm 756.19 lb
331605 B 498.475 mm 634.873 mm 275.58 lb
331657 479.425 mm 679.45 mm 665.80 lb
BT2B 332176 A 447.675 mm 635 mm 540.13 lb
BT2B 332604/HA1 431.8 mm 571.5 mm 220.46 lb
BT2B 332237 A/HA1 431.8 mm 571.5 mm 279.99 lb
331656 415.925 mm 590.55 mm 451.95 lb
BT2B 328389 406.4 mm 539.75 mm 181.66 lb
BT2-8143/HA1 400 mm 540 mm 233.69 lb
331197 A 384.175 mm 546.1 mm 354.94 lb
331606 A 371.475 mm 501.65 mm 170.64 lb
BT2B 332603/HA1 368.249 mm 523.875 mm 308.65 lb
BT2B 332831 360 mm 480 mm 160.94 lb
BT2B 332506/HA2 355.6 mm 501.65 mm 191.80 lb
331981 346.075 mm 488.95 mm 242.51 lb
BT2B 332830 340 mm 460 mm 156.53 lb
331775 B 333.375 mm 469.9 mm 216.05 lb
BT2B 332516 A/HA1 317.5 mm 447.675 mm 185.19 lb
BT2B 332504/HA2 300.038 mm 422.275 mm 157.63 lb
BT2B 328187/HA2 260.35 mm 422.275 mm 190.70 lb
BT2B 328130 260 mm 480 mm 462.97 lb
331945 228.6 mm 488.95 mm 451.95 lb
545112-545142CD 11.25" 14.125" 32.12 lb
29888-29820DC 10.75" 12.75" 16.11 lb
29888-29820D 10.75" 12.75" 16.1 lb
29880-29820DC 10.5" 12.75" 18.18 lb
29880-29820D 10.5" 12.75" 18.16 lb