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
331092 A 347.662 mm 469.9 mm 330.69 lb
BT4B 331228 G/HA1C200 346.075 mm 488.95 mm 478.40 lb
BT4B 328817 EX1/C475 343.052 mm 457.098 mm 242.51 lb
BT4B 328817 E1/C475 343.052 mm 457.098 mm 242.51 lb
BT4-8160 E81/C475 343.052 mm 457.098 mm 244.71 lb
BT4-8160 E81/C400 343.052 mm 457.098 mm 244.71 lb
BT4-8160 E8/C475 343.052 mm 457.098 mm 244.71 lb
331381 333.375 mm 469.9 mm 418.88 lb
BT4-8113 E2/C500 330.302 mm 438.023 mm 231.49 lb
BT4B 332647 G/HA1 330.2 mm 444.5 mm 297.62 lb
BT4B 334023 E1/C675 317.5 mm 422.275 mm 208.34 lb
BT4B 331161 BG/HA1 317.5 mm 447.675 mm 363.76 lb
BT4B 331161 AG/HA4 317.5 mm 447.675 mm 363.76 lb
330870 BG 317.5 mm 422.275 mm 231.49 lb
BT4-8093 G/HA1VA901 310 mm 430 mm 284.40 lb
BT4-0004 G/HA1 304.902 mm 412.648 mm 220.46 lb
330758 BG 304.902 mm 412.648 mm 227.08 lb
BT4B 328909 G/HA1VA901 304.8 mm 501.65 mm 559.97 lb
331492 304.648 mm 438.048 mm 297.62 lb
BT4B 331968 BG/HA1 292.1 mm 422.275 mm 275.58 lb
BT4B 331452 G/HA1 288.925 mm 406.4 mm 275.58 lb
BT4-0015 G/HA1C400VA903 285.75 mm 380.898 mm 163.14 lb
330337 AG 285.75 mm 380.898 mm 178.57 lb
BT4-0026 A/PEX 280 mm 406.4 mm 297.62 lb
330540 AG 279.578 mm 380.898 mm 189.60 lb
BT4-0011 G/HA1C500VA901 279.4 mm 393.7 mm 210.54 lb
BT4-0012 G/HA1C500VA901 276.225 mm 393.7 mm 217.16 lb
BT4B 331168 B 269.875 mm 381 mm 231.49 lb
BT4B 328209 G/HA1C455 266.7 mm 355.6 mm 144.40 lb
BT4-0014 G/HA1C400VA903 266.7 mm 355.6 mm 133.38 lb
BT4-0039 E8/C355 254 mm 358.775 mm 179.24 lb
330862 B 244.475 mm 327.025 mm 101.41 lb
330782 AG 241.478 mm 349.148 mm 164.24 lb
BT4-0020/HA1 240 mm 338 mm 152.78 lb
BT4-0040 E8/C355 220.662 mm 314.325 mm 123.90 lb
BT4-0035 E8/C355 220 mm 295 mm 125.44 lb
BT4-0021 G/HA1 206.375 mm 282.575 mm 78.93 lb
BT4-0013 G/HA1C400VA903 206.375 mm 282.575 mm 70.77 lb
BT4-0027 AG/HA1 198.438 mm 284.162 mm 99.87 lb
BT4-0010 G/HA1C400VA903 177.8 mm 247.65 mm 61.29 lb