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
BT4-8150 G/HA4 1300 mm 1720 mm 11993.15 lb
BT4B 328100/HA4 1070.001 mm 1399.997 mm 8223.24 lb
BT4B 334031/HA4C1800 1001 mm 1360 mm 7473.67 lb
BT4B 334031 AG/HA4 1001 mm 1360 mm 7760.27 lb
330726 A 938.212 mm 1270 mm 7120.93 lb
BT4B 332981/HA4 877.888 mm 1220 mm 6790.24 lb
BT4B 331123 DG/HA1 863.6 mm 1130.3 mm 4023.44 lb
BT4B 330742 A/HA4 863.6 mm 1219.1 mm 7650.04 lb
BT4B 331066 A/HA4 825.5 mm 1168.4 mm 6724.10 lb
BT4-8121 E/C600 785 mm 1010 mm 2674.21 lb
BT4B 328376/HA4 750 mm 1130 mm 5357.23 lb
BT4-8048 E/C725 750 mm 950 mm 1554.26 lb
330803 A 730.25 mm 1035.05 mm 4784.03 lb
BT4-8069 G/HA1VA901 717.55 mm 946.15 mm 2308.24 lb
332244 717.55 mm 946.15 mm 2403.04 lb
BT4-8139 G/HA1 711.2 mm 914.4 mm 1322.77 lb
BT4B 331351 E/C775 710 mm 900 mm 1366.87 lb
BT4B 331351 BG/HA1 710 mm 900 mm 1366.87 lb
331351 710 mm 900 mm 1455.05 lb
BT4B 332098 A/HA4 708.025 mm 930.275 mm 2270.76 lb
BT4-8109 E1/C800 708.025 mm 930.275 mm 2237.69 lb
BT4B 331089 CG/HA1 685.8 mm 876 mm 1157.43 lb
BT4B 328955 ABG/HA1VA902 685.8 mm 876.3 mm 1113.33 lb
BT4B 328349/HA1 680 mm 930 mm 3582.51 lb
BT4B 334016 AG/HA1VA901 679.45 mm 901.7 mm 2270.76 lb
BT4B 334015 BG/HA1VA901 679.45 mm 901.7 mm 2138.48 lb
BT4B 332906/HA4 676 mm 910 mm 2535.32 lb
BT4B 331190 BG/HA1 660.4 mm 812.8 mm 921.53 lb
331190 660.4 mm 812.8 mm 925.94 lb
BT4B 332833 G/HA4 660 mm 1070 mm 5033.15 lb
BT4B 332827 AG/HA1 650 mm 1030 mm 3990.37 lb
BT4-8137 G/HA1 625 mm 815 mm 1693.15 lb
BT4-8031 E/C800 625 mm 815 mm 1455.05 lb
BT4B 328510/HA1 620 mm 800 mm 1025.15 lb
BT4B 328871 G/HA1VA901 609.6 mm 787.4 mm 947.99 lb
331925 609.6 mm 813.562 mm 1576.31 lb
331175 BG/C355 609.6 mm 787.4 mm 1003.10 lb
331175 A 609.6 mm 787.4 mm 1003.10 lb
BT4B 331625 E/C800 603.25 mm 857.25 mm 2605.86 lb
331625 603.25 mm 857.25 mm 2722.71 lb