TIMKEN HH224346DD tapered roller bearing de doble hilera
- Brand
- TIMKEN
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Description
TIMKEN HH224346DD belongs to tapered roller bearing de doble hilera, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for HH224346DD and any equivalents.
A double row tapered roller bearing carries two rows of tapered rollers on a single axis of symmetry, so it takes radial and axial loads in both directions at once. It is specified where one row does not provide enough capacity or rigidity, as in gearboxes, road machinery drives and rolling mills. MR Industrial Accessories LLC supplies the TIMKEN brand to industrial maintenance customers across the United States and in several Latin American countries.
The code is read in blocks. The leading letters mark the dimension series, and the numeric block that follows sets the size inside that series. In the HH series, a designation such as the series prefix plus the assembly number identifies the assembly, and the suffix DD signals a double row. Extra letters in the code normally point to design variants of the assembly rather than to different dimensions. When you request a quote, send the full code exactly as it appears on the equipment.
Typical duty is combined load with moments: mill reduction gearboxes, conveyor belt drives, road and agricultural machinery, earthmoving equipment and rolling mills. Crane drives and support rollers on heavy equipment also use them, since the double row spreads the load and adds rigidity compared with an arrangement of two single bearings.
Selection comes down to load type, rotation speed and environment. The double row performs best with generous lubrication and proper sealing against dust and water, particularly where particulate material is present. Mounting calls for aligned seats and axial clearance set to the equipment design: too tight accelerates wear, too loose produces vibration. Grease or oil both work depending on the housing, and the interval given by the equipment manufacturer should be followed.
Interchange is not a matter of matching codes. Every manufacturer builds its own nomenclature for double row tapered roller bearings, so the same size can carry different designations by brand. What defines interchangeability is mounting dimensions and load capacity. If the exact reference cannot be found for a replacement, send the measurements or the old code and we will identify the compatible alternative.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does the DD suffix indicate in this bearing family?
- It identifies a double row assembly. Other letters that accompany the base code describe design variants of the bearing and do not change the dimensions. Send the complete code as shown on the equipment when you request a quote.
- When should I specify a double row instead of a single row?
- The double row is the choice when radial and axial loads are high, or when the equipment needs more rigidity and capacity in a compact space. Where the load is moderate and there is room for two paired single bearings, that arrangement also works. Share the application and we will help you decide.
- Can a TIMKEN bearing be replaced by another brand?
- Yes, provided the mounting dimensions and load capacity match. Codes alone are not enough to compare because each manufacturer uses its own nomenclature. Send the old code or the seat measurements and we will point you to the compatible alternative.