TIMKEN LM78349A tapered roller bearing cone
- Brand
- TIMKEN
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Description
TIMKEN LM78349A 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 LM78349A and any equivalents.
The TIMKEN LM series tapered roller cone is the inner assembly of a separable tapered roller bearing. It consists of the inner ring and the tapered rollers, and it works together with a cup, which is the outer race. When paired, they support combined radial and axial loads on rotating shafts. This type of cone is common in industrial and automotive transmissions where precision and load capacity matter.
The LM designation is an alphanumeric code that indicates the size and design of the cone. In a reference like LM48548A, the letters LM identify the light-section tapered roller series, the digits that follow define the dimensions, and the suffix A denotes a design variant, such as a specific radius or angle. Other references, such as LM67049A or LM104947A, follow the same logic: the LM series covers general-purpose cones in a range of sizes and capacities.
These cones appear in many industries across the United States and Latin America. Typical uses include automotive gearboxes, differentials and wheel hubs; agricultural equipment such as seeders and harvesters; mining, steel and cement operations; and material handling equipment like conveyor belts and speed reducers. In all of these, combined loads and demanding conditions call for robust bearings.
To choose the right cone, consider the radial and axial load, the rotation speed and the space available. The cone must be mounted with a cup of the same series and size. Check shaft and housing alignment, apply proper lubrication and control axial clearance during assembly. Good sealing keeps contamination out and helps the bearing last.
TIMKEN tapered roller cones are interchangeable with other brands that share the same designation and dimensions. When you request a quote, provide the complete cone code and, if possible, the code of the matching cup to confirm compatibility. Our team can also suggest an equivalent for your application.
To request a TIMKEN LM series tapered roller cone, send the code or measurements via WhatsApp or email. We will reply promptly and, if needed, point you to a 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 is the difference between a cone and a cup in a tapered roller bearing?
- The cone is the inner assembly that includes the inner ring and the rollers; the cup is the outer ring. They are mounted separately and must be of the same series and size. The TIMKEN LM series cone is used with its corresponding cup.
- How do I identify which TIMKEN cone I need?
- Look for the code engraved on the original cone, or measure the inner diameter and width. With that information, we can quote the exact replacement. If you cannot find the code, send a photo or the measurements via WhatsApp and we will help you identify it.
- Are TIMKEN LM series cones compatible with other brands?
- Yes, tapered roller bearings are made to interchangeable dimension standards. A TIMKEN LM series cone can replace another of the same designation and measurements from a different brand. Always verify the code and dimensions before mounting.