TIMKEN JH211749 tapered roller bearing cone

TIMKEN JH211749 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 JH211749 and any equivalents.

In a tapered roller bearing, the cone is the inner ring that rides on the shaft; paired with its cup it makes up the assembly that carries radial and axial loads at the same time. The TIMKEN JH series covers references built for equipment where those combined forces are significant relative to the space available. MR Industrial Accessories LLC supplies this line to plants and workshops throughout the United States and Latin America, and helps buyers match a cone to the application.

Read the designation in two parts. The JH prefix signals the series and the cone type; the digits that follow are a size code. JH211749, JH217249, JH307749 and JH415647 therefore sit at different shaft diameters and raceway widths. The code alone will not give you dimensions, so confirm the replacement by running the full part number against the manufacturer's data.

Typical service includes gearboxes and speed reducers, conveyor rollers, construction and earthmoving machinery, presses and machine tool spindles. Railway equipment and overhead cranes are also common homes for these cones, since a bearing failure there is costly. In practice they turn up in cement plants, quarries, sugar mills, metalworking shops, and in agricultural equipment such as seeders and combines.

Selection comes down to four inputs: the radial load, the axial load, the rotational speed, and the lubrication method. During mounting, work clean, verify the shaft fit, and set axial clearance by the correct procedure, because an incorrect setting is a frequent cause of short bearing life. Cone and cup must be aligned; a misaligned assembly pushes the load onto the roller ends and leads to early failure. Sealing deserves the same attention, since dust and moisture will contaminate the grease once the barrier is compromised.

TIMKEN is a reference name in tapered roller bearings, and other manufacturers build comparable geometries. Interchange is not something to assume: cones with similar numbers can differ in raceway angle or corner radius. Compare the critical dimensions and treat the cone and cup numbers as a set before you substitute anything. When the exact reference is hard to trace, we can point you to a compatible option.

Send the part number on WhatsApp or by email and our team replies promptly with a quote and any help you need choosing. Housings, power transmission components, seals, bushings, mounting tools and lubricants are also part of our range.