TIMKEN M86648A tapered roller bearing cone
- Brand
- TIMKEN
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Description
TIMKEN M86648A belongs to tapered roller bearing cone, 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 M86648A and any equivalents.
A tapered roller bearing cone is the inner assembly: inner ring, rollers and cage. Fitted with its matching cup, it forms a unit that carries radial and axial loads together. TIMKEN supplies this component, and MR Industrial Accessories provides it to maintenance and purchasing teams across the United States and Latin America. It suits equipment where shafts turn at moderate or high speed while transmitting considerable force.
Cone part numbers follow a pattern: an M prefix, a series number in the middle, and an A at the end. The M reflects TIMKEN's naming practice, the A marks a construction variant inside the same series, and the middle digits identify the series. Together with the cup, that series sets the dimensions of the complete assembly, so the cone must always be matched to its corresponding cup.
Typical installations include gear reducer boxes, drives on road machinery, conveyor rollers, machine tool spindles and industrial vehicle hubs. In plants handling cement, food or mining, and in agricultural machinery workshops, these cones show up regularly in maintenance work. Because internal clearance can be set during mounting, they work well on shafts that need a controlled preload.
Start selection with the cup, since cone and cup are ground as a pair and mixing parts from different assemblies is not advised. Mounting calls for clean conditions, proper lubrication and careful alignment so the rollers share the load evenly. Clearance or preload is set using lock nuts, shims or spacers, depending on how the equipment is built. Good sealing keeps contaminants out and helps the assembly last.
Equivalences are traced through the manufacturer's part number and the dimensions of the cone-cup assembly. For a quote, send the full part number and, when possible, the measurements or the housing drawing. MR can point you to a compatible option among the brands it carries. Series are not always interchangeable across manufacturers, since contact angle and roller radius may differ, so technical verification matters.
Dimensions
- Bore
- 30.955 mm
Frequently asked questions
- What distinguishes the cone from the cup in a tapered roller bearing?
- The cone is the inner ring that holds the rollers and cage; the cup is the outer ring. They are mounted as a matched pair, and swapping parts between assemblies is not recommended. For a quote, provide the cone part number and, if available, the cup part number.
- How can I identify the correct TIMKEN cone for my equipment?
- Share the part number stamped on the component or the assembly measurements. With that information we can indicate the equivalent reference. If the part number is missing, send a photo or the housing drawing and we will help identify it.
- Which lubricant works for a tapered roller bearing?
- It depends on speed, temperature and load type. High-pressure greases or oils with EP additives are common choices. For demanding applications, ask us and we will recommend a suitable lubricant for your equipment.