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Timken 239/500YMBW509C08C3 spherical roller bearing with 500 mm bore, 670 mm OD, and 128 mm width. Brass cage (YMB) for shock and high-temperature resistance, W509 lubrication feature, and C3 radial internal clearance for thermal expansion. Dynamic load rating 653,000 lbf, static load rating 1,360,000 lbf. Suitable for heavy-duty applications such as mining equipment, crushers, and large industrial gearboxes.
MODEL 239/500YMBW509C08C3
Returnable: Yes
1360000 lbf Geometry factor
0.1027 ISO factor:6.15 Inner ring to clear radius:0.160 in Inner ring backing diameter:542.000 mm
21.400 in Inner ring width
128 mm
25.000 in Outer ring width
128 mm
5.039 in O.D. (in)
670 mm 26.3780 Outer ring to clear radius:0.160 in Outer ring backing diameter:634.000 mm
5.039 in Reference thermal speed rating (grease)
520 rpm Reference thermal speed rating (oil):610 Static radial rating:2910000 N
Cage material
BRASS
Cage type
YMB
Design unit
METRIC
Dynamic radial rating (two-rows)
653000 lbf
Geometry factor
0.1027
I.D.
19.6850 in
Inner ring "to clear" radius
0.160 in
Inner ring backing diameter
21.400 in
Inner ring width
5.039 in
ISO factor
6.15
O.D.
26.3780 in
Outer ring "to clear" radius
0.160 in
Outer ring backing diameter
25.000 in
Outer ring width
5.0390 in
Reference thermal speed rating (grease)
520
Reference thermal speed rating (oil)
610
Static radial rating
1360000 lbf
Spherical bearings are designed to manage high radial loads even when misalignment, poor lubrication, contamination, extreme speeds or critical application stresses are present.
SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read moreHow do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
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SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read more