Single 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
EE291201-291750 12" 17.5" 2.5" 61.8 lb
EE291201-291749 12" 17.5" 2.5" 61.7 lb
EE129120X-129174 12" 17.3208" 3.0001" 74.100 lb
EE129120X-129172 12" 17.246" 3" 72.90 lb
DX577285-DX985397 12" 15.5" 2.0001" 31.70 lb
HM256849-HM256810 11.8125" 16.625" 3.25" 78.20 lb
HH258248-HH258210 11.81" 19.5" 5.5625" 243.50 lb
EE291175-291750 11.75" 17.5" 2.5" 65.00 lb
EE291175-291749 11.75" 17.5" 2.5001" 64.90 lb
L555249-L555210 11.5" 14.75" 1.875" 26 lb
EE790116-790221 11.5" 22" 5.375" 305.50 lb
EE790114-790221 11.5" 22" 5.375" 308.40 lb
EE722115-722185 11.5" 18.5" 3.75" 121.500 lb
EE224115-224204 11.5" 20.5" 4.25" 203.90 lb
84115-84155 11.5" 15.5" 2.5" 39.4 lb
L357040-L357010 11.4163" 15.5" 2" 37.9 lb
M255449WS-M255410 11.375" 16" 3.0626" 67.70 lb
M255449H-M255410 11.375" 16" 3.0625" 68.100 lb
M255449-M255410 11.375" 16" 3.0625" 67.9 lb
LM654649-LM654611 11.25" 14.961" 2.5625" 42.700 lb
LM654649-LM654610 11.25" 14.996" 2.5625" 43.200 lb
EE921124-921875 11.25" 18.75" 3.2193" 112.00 lb
EE921124-921850 11.25" 18.5" 3.2193" 107.4 lb
545112-545141 11.25" 14.125" 1.3125" 14.9 lb
545112-545139 11.25" 13.9375" 1.3125" 13.8 lb
EE128111-128161 11.0312" 16.141" 2.75" 61.7 lb
EE128111-128160 11.0312" 16" 2.75" 59.600 lb
EE128110-128161 11.0312" 16.141" 2.75" 63.8 lb
EE128110-128160 11.0312" 16" 2.75" 61.7 lb
EE101103-101600 11.0312" 16" 2.0625" 43.100 lb
EE101103-101575 11.0312" 15.75" 2.0625" 40.60 lb
EE128114-128161 11.0236" 16.141" 2.7501" 64 lb
EE128114-128160 11.0236" 16" 2.7501" 61.8 lb
EE128112-128161 11.0236" 16.141" 2.7501" 61.8 lb
EE128112-128160 11.0236" 16" 2.75" 59.700 lb
LM654642-LM654611 11.0229" 14.961" 2.5625" 45.60 lb
LM654642-LM654610 11.0229" 14.996" 2.5625" 46.2 lb
LL352149-LL352111 11" 12.5" 0.9351" 5.6 lb
LL352149-LL352110 11" 12.5" 0.96" 5.7 lb
LL352148-LL352111 11" 12.5" 0.8751" 5.4 lb