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
BT4-8173 E81/C725 450 mm 595 mm 615.09 lb
BT4-8173 E8/C725 450 mm 595 mm 615.09 lb
BT4-8044 G/HA1VA902 450 mm 595 mm 672.41 lb
330608 C 447.675 mm 635 mm 1069.24 lb
BT4B 334055 ABG/HA1VA902 440 mm 590 mm 804.69 lb
BT4B 328944 G/HA1VA901 440 mm 650 mm 835.55 lb
BT4-8124 E/C550 440 mm 580 mm 566.59 lb
332313 440 mm 650 mm 903.90 lb
BT4B 334019 G/HA1 431.8 mm 635 mm 892.87 lb
BT4B 331226/HA1 431.8 mm 571.5 mm 529.11 lb
BT4B 331226 BG/HA1 431.8 mm 571.5 mm 529.11 lb
BT4B 331226 AG/HA1 431.8 mm 571.5 mm 529.11 lb
BT4-8067 G/HA1VA902 431.8 mm 571.5 mm 540.13 lb
BT4B 331333 E/C575 409.575 mm 546.1 mm 485.02 lb
BT4B 331333 E/C350 409.575 mm 546.151 mm 485.02 lb
BT4B 329004 G/HA1VA901 409.575 mm 546.1 mm 462.97 lb
BT4B 334093 BG/HA1VA902 406.4 mm 546.1 mm 440.92 lb
BT4B 331347 AG/HA1 406.4 mm 565.15 mm 661.39 lb
BT4B 328838 BG/HA1VA902 406.4 mm 546.1 mm 396.83 lb
BT4-8161 E81/C500 406.4 mm 546.1 mm 410.06 lb
BT4-8161 E8/C500 406.4 mm 546.1 mm 405.65 lb
BT4-8126 E1/C575 406.4 mm 562 mm 637.14 lb
BT4-8147 G/HA1 400 mm 600 mm 650.36 lb
BT4B 332824/HA1 395 mm 545 mm 429.90 lb
BT4B 332824 E/C475 395 mm 545 mm 423.29 lb
BT4B 334042 E1/C575 385.762 mm 514.35 mm 385.81 lb
BT4B 334128/HA1 384.175 mm 546.1 mm 749.57 lb
BT4-8025 G/HA1C300VA903 384.175 mm 546.1 mm 661.39 lb
331149 E/C675 384.175 mm 546.1 mm 685.64 lb
BT4-8086 G/HA1 380 mm 736.676 mm 502.65 lb
BT4-8033 G/HA1 380 mm 560 mm 661.39 lb
331159 A 368.3 mm 523.875 mm 606.27 lb
332059 360 mm 510 mm 562.18 lb
BT4B 328912 E3/C675 355.6 mm 488.95 mm 374.79 lb
BT4B 328912 E1/C300 355.6 mm 488.95 mm 374.79 lb
BT4B 328870 EX1/C300 355.6 mm 482.6 mm 297.62 lb
BT4-8162 E81/C480 355.6 mm 482.6 mm 304.24 lb
BT4-8162 E8/C480 355.6 mm 482.6 mm 304.24 lb
331271 355.6 mm 488.95 mm 429.90 lb
BT4-8070 G/HA1VA901 347.662 mm 469.9 mm 299.83 lb