Four 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
BT4B 331300 E/C775 595.312 mm 844.55 mm 2601.45 lb
BT4B 331093 BG/HA1 585.788 mm 771.525 mm 1366.87 lb
BT4B 328888 BG/HA1VA901 585.788 mm 771.525 mm 1322.77 lb
BT4B 331189 E/C600 584.2 mm 730.326 mm 720.91 lb
331148 A 584.2 mm 762 mm 1069.24 lb
BT4B 332666/HA1 571.5 mm 812.8 mm 2436.11 lb
BT4B 328509/HA4 560 mm 920 mm 3747.86 lb
BT4-8153 E/C775 560 mm 700 mm 793.66 lb
BT4B 334080 G/HA1VA901 558.8 mm 736.6 mm 1047.20 lb
BT4B 330993 AG/HA1 558.8 mm 736.6 mm 1058.22 lb
BT4-8022 G/HA1VA919 558.8 mm 736.6 mm 1135.38 lb
331165 AG 558.8 mm 736.6 mm 826.73 lb
331165 A 558.8 mm 736.6 mm 826.73 lb
BT4-8108 E/C625 540 mm 690 mm 815.71 lb
331978 BG 540 mm 690 mm 820.12 lb
BT4-8043 G/HA1 530 mm 680 mm 892.87 lb
BT4B 331243 A/HA1 520.7 mm 711.2 mm 1014.13 lb
BT4-8167 E81/C775 510 mm 655 mm 687.84 lb
BT4-8167 E8/C775 510 mm 655 mm 687.84 lb
331081 A 501.65 mm 711.2 mm 1664.49 lb
BT4-8056 G/HA1 500 mm 670 mm 848.78 lb
BT4-8135 E/C750 490 mm 625 mm 621.70 lb
331090 E/C700 489.026 mm 634.873 mm 584.22 lb
BT4B 331259 BG/HA1C325 482.6 mm 647.7 mm 873.03 lb
BT4B 328842 E1/C325 482.6 mm 615.95 mm 513.68 lb
BT4-8163 E8A/C725 482.6 mm 615.95 mm 518.09 lb
BT4-8163 E81/C725 482.6 mm 615.95 mm 518.09 lb
BT4-8163 E8/C725 482.6 mm 615.95 mm 518.09 lb
332096 E/C725 482.6 mm 615.95 mm 529.11 lb
330886 B 479.425 mm 679.45 mm 1333.80 lb
BT4B 328913 BG/HA1C555 475 mm 600 mm 551.16 lb
BT4B 332502/HA1 460 mm 625 mm 837.76 lb
BT4B 331977 E/C725 460 mm 610 mm 641.55 lb
BT4-8111 E2/C725 460 mm 610 mm 615.09 lb
BT4B 328827 ABG/HA1VA902 457.2 mm 596.9 mm 418.88 lb
BT4-8125 E1/C725 457.2 mm 606 mm 656.98 lb
331169 E/C500 457.2 mm 596.9 mm 434.31 lb
331169 BG 457.2 mm 596.9 mm 440.92 lb
BT4B 332773 E/C725 450 mm 595 mm 628.32 lb
BT4B 328365 EX/C725 450 mm 595 mm 668.00 lb