TIMKEN HM821511D tapered roller bearing cup
- Brand
- TIMKEN
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Description
TIMKEN HM821511D belongs to tapered roller bearing cup, 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 HM821511D and any equivalents.
The outer ring of a tapered roller bearing assembly is the cup, and in the TIMKEN HM line it is matched to its corresponding cone. It carries combined radial and axial loads in arrangements where the fit has to be precise. MR Industrial Accessories LLC supplies this cup within its bearings range for industrial maintenance and repair work.
Reading the HM code is straightforward: the letters mark the dimension family and the digits that come after identify the size. A suffix such as D, as in HM821511D, points to a construction variant inside the same family. When you place an order, give the complete number exactly as it appears in the parts breakdown or on the drawing.
Typical installations include gear reducer boxes, drive shafts, rollers on road machinery, milling equipment and conveyors. Maintenance teams at food, cement, steel and agro-industrial plants handle these cups during scheduled shutdowns, since tapered assemblies run under load and tolerate moderate misalignment.
Cone and cup must stay paired by series. Two parts from different series are not interchangeable even when the outer diameter coincides. Before closing the assembly, verify the seating in the housing, the lubrication and the axial clearance. Press the cup in with a proper tool, never strike the raceway directly, and confirm alignment with the shaft.
Each bearing brand uses its own designation system, so dimensional equivalences are set by cone and cup measurements rather than by the number on the part. When replacing an assembly, compare outer diameter, width and raceway angle. If you need a compatible option, our team will point you to the one matching your size.
To get a quote on your TIMKEN tapered roller cup, send the part number through WhatsApp or email. If the number is not in the list, write to us with the model or the size and we will quote it promptly.
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 separates the cone from the cup in a tapered roller bearing?
- The cone is the inner ring that holds the rollers and the cage, while the cup is the outer ring seated in the housing. They are replaced as a set and need to come from the same series for correct contact and clearance.
- How do I order the TIMKEN cup I need?
- Send the full part number by WhatsApp, for instance HM821511D, or the outer diameter and width. With that information we quote the cup or the cone-cup assembly for your equipment.
- Can I replace only the cup and keep the cone?
- Replacing cone and cup together is generally recommended, since the raceways wear at the same rate. If the cone is still in good condition, check contact and axial clearance before deciding on the assembly.