• TDO consists of a single-piece (double)
outer ring and two single inner rings.
• This configuration offers a wide
effective bearing spread to support
loads created by overturning moments.
• These bearings can be used at fixed
positions or allowed to float in the housing
bore to compensate for shaft expansion.
Double-outer ring configurations
D D suffix has a groove with oil holes for lubrication
through the outer ring.
CD suffix now replaces the DC suffix listed for
part numbers in previous publications.
Same features as D suffix, but CD also has groove
with oil holes. One lubrication hole is counterbored
to accept an anti-rotational pin.
Default configuration for most series.
• TDO bearings are usually supplied complete with an inner-ring
spacer as a pre-set assembly.
• To suit the application duty, the built-in setting value needs to be
established by your Timken engineer before an order is placed.
• For spacer configuration information, contact your Timken
• Double outer ring can be used with any single inner ring from
the same series.
• The tables list regularly specified inner-ring part numbers.
• Consult your Timken engineer before making a final bearing
selection to help ensure suitability, availability and the most
Boyal Industrial Pte ltd. can identify numbers long forgotten by their manufacturers and cross-reference them to part numbers that are currently available. Combined with one of the world's largest inventories of bearings, we believe you'll find that Boyal Industrial Pte ltd. can be your number one source for bearings.
Tapered roller bearing 15119 15251D utilize conical rollers and raceways, arranged so that the rollers and raceways meet at a common apex. The rollers are guided by contact between the large end of the roller and a rib on the inner ring. This provides high capacity for radial and single thrust loads.
Tapered roller bearings double row • Type TDO is divided into the TDO type which has one double cup and two single-row cones, and the TDI type which has two single-row cups and one double cone.Both accommodate radial and axial loading in both directions. These two also carry moment loads; however, the TDO type is superior to the TDI type, because the distance between load centers is longer in the TDO type. The spacer of the TDO type, or the TDI type, pre-adjusts the internal clearance to provide proper operating clearance after mounting.
Without proper lubrication,Tapered roller bearings double row • Type TDO would fail due to excessive heat caused by friction. Boyal Industrial Pte ltd. is able to significantly reduce the friction on his bearings by using a cup and cone design incorporating tapered bearings which actually rolled, which reduced the load placed on the bearings by distributing the weight and load evenly across the cups, cones, and bearings.