The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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Available in single, double, and multi-row configurations as well as proprietary sizes, these bearings are developed in collaboration with OE engineers to deliver premium performance across various applications. Their power-dense designs support heavier loads and help extend bearing life, while optimized internal geometry reduces torque and operating temperatures to prolong lubrication system life. Additionally, they can be engineered with proprietary enhancements to withstand highly corrosive conditions, high temperatures, vacuum environments, or situations with limited lubrication.
Timken_TRB_1ROWASSY_TS_32005X-90KA1-A
TRB TS Line Drawing
Unit of Measure
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Part Number

Bore (d)

O.D. (D)

Inner Ring Width (B)

Outer Ring Width (C)

Width (T)

Dynamic Radial Load Rating - 1M Revs (C1)

Static Radial Load Rating (C0)

Series

CAD

66212 / 66462 N/A 2.1250 in53.975 mm N/A 4.6250 in117.475 mm N/A 1.25 in31.75 mm N/A 0.9375 in23.813 mm N/A 1.3125 in33.338 mm N/A 39700 lbf177000 N N/A 37300 lbf166000 N N/A 66000 N/A
39578 / 39528 N/A 2.1250 in53.975 mm N/A 4.7238 in119.985 mm N/A 1.1875 in30.163 mm N/A 1.0610 in26.949 mm N/A 1.2895 in32.753 mm N/A 37500 lbf167000 N N/A 50300 lbf224000 N N/A 39500 N/A
621 / 612A N/A 2.1250 in53.975 mm N/A 4.7260 in120.040 mm N/A 1.625 in41.275 mm N/A 1.2500 in31.750 mm N/A 1.6251 in41.278 mm N/A 46600 lbf207000 N N/A 54800 lbf244000 N N/A 615 N/A
5578 / 5520 N/A 2.1250 in53.975 mm N/A 4.7343 in120.251 mm N/A 1.723 in43.764 mm N/A 1.4375 in36.513 mm N/A 1.7499 in44.447 mm N/A 53200 lbf237000 N N/A 73500 lbf327000 N N/A 5500 N/A
5577 / 5520 N/A 2.1250 in53.975 mm N/A 4.7343 in120.251 mm N/A 1.723 in43.764 mm N/A 1.4375 in36.513 mm N/A 1.7499 in44.447 mm N/A 53200 lbf237000 N N/A 73500 lbf327000 N N/A 5500 N/A
5578V / 5520 N/A 2.1250 in53.975 mm N/A 4.7343 in120.251 mm N/A 1.723 in43.764 mm N/A 1.4375 in36.513 mm N/A 1.7499 in44.447 mm N/A 63000 lbf280000 N N/A 73500 lbf327000 N N/A 5500 N/A
621 / 612 N/A 2.1250 in53.975 mm N/A 4.75 in120.65 mm N/A 1.625 in41.275 mm N/A 1.2500 in31.750 mm N/A 1.6250 in41.275 mm N/A 46600 lbf207000 N N/A 54800 lbf244000 N N/A 615 N/A
621 / 612-S N/A 2.1250 in53.975 mm N/A 4.75 in120.65 mm N/A 1.625 in41.275 mm N/A 1.2500 in31.750 mm N/A 1.6250 in41.275 mm N/A 46600 lbf207000 N N/A 54800 lbf244000 N N/A 615 N/A
621 / 612V N/A 2.1250 in53.975 mm N/A 4.75 in120.65 mm N/A 1.625 in41.275 mm N/A 1.2500 in31.750 mm N/A 1.6251 in41.278 mm N/A 46600 lbf207000 N N/A 54800 lbf244000 N N/A 615 N/A
624 / 612 N/A 2.1250 in53.975 mm N/A 4.75 in120.65 mm N/A 1.625 in41.275 mm N/A 1.2500 in31.750 mm N/A 1.6250 in41.275 mm N/A 46600 lbf207000 N N/A 54800 lbf244000 N N/A 615 N/A
621-99403 N/A 2.1250 in53.975 mm N/A 4.75 in120.65 mm N/A 1.625 in41.275 mm N/A 1.2500 in31.750 mm N/A 1.6250 in41.275 mm N/A 46600 lbf207000 N N/A 54800 lbf244000 N N/A 615 N/A
5578V / 5535 N/A 2.1250 in53.975 mm N/A 4.8125 in122.238 mm N/A 1.723 in43.764 mm N/A 1.4375 in36.513 mm N/A 1.7187 in43.655 mm N/A 63000 lbf280000 N N/A 73500 lbf327000 N N/A 5500 N/A
5578 / 5535 N/A 2.1250 in53.975 mm N/A 4.8125 in122.238 mm N/A 1.723 in43.764 mm N/A 1.4375 in36.513 mm N/A 1.7188 in43.658 mm N/A 53200 lbf237000 N N/A 73500 lbf327000 N N/A 5500 N/A
5577 / 5535 N/A 2.1250 in53.975 mm N/A 4.8125 in122.238 mm N/A 1.723 in43.764 mm N/A 1.4375 in36.513 mm N/A 1.7188 in43.658 mm N/A 53200 lbf237000 N N/A 73500 lbf327000 N N/A 5500 N/A
5577 / 5535V N/A 2.1250 in53.975 mm N/A 4.8125 in122.238 mm N/A 1.723 in43.764 mm N/A 1.4375 in36.513 mm N/A 1.7187 in43.655 mm N/A 53200 lbf237000 N N/A 73500 lbf327000 N N/A 5500 N/A
5578 / 5535V N/A 2.1250 in53.975 mm N/A 4.8125 in122.238 mm N/A 1.723 in43.764 mm N/A 1.4375 in36.513 mm N/A 1.7187 in43.655 mm N/A 53200 lbf237000 N N/A 73500 lbf327000 N N/A 5500 N/A
66584 / 66520 N/A 2.1250 in53.975 mm N/A 4.8125 in122.238 mm N/A 1.25 in31.75 mm N/A 0.9375 in23.813 mm N/A 1.3125 in33.338 mm N/A 41200 lbf183000 N N/A 39900 lbf178000 N N/A 66500 N/A
557-S / 552A N/A 2.1250 in53.975 mm N/A 4.8750 in123.825 mm N/A 1.444 in36.678 mm N/A 1.1875 in30.163 mm N/A 1.5 in38.1 mm N/A 50800 lbf226000 N N/A 55700 lbf248000 N N/A 555 N/A
72213C / 72487 N/A 2.1250 in53.975 mm N/A 4.8750 in123.825 mm N/A 1.291 in32.791 mm N/A 1.0000 in25.400 mm N/A 1.4375 in36.513 mm N/A 48200 lbf214000 N N/A 46800 lbf208000 N N/A 72000C N/A
72212C / 72487 N/A 2.1250 in53.975 mm N/A 4.8750 in123.825 mm N/A 1.291 in32.791 mm N/A 1.0000 in25.400 mm N/A 1.4375 in36.513 mm N/A 48200 lbf214000 N N/A 46800 lbf208000 N N/A 72000C N/A
72212 / 72487 N/A 2.1250 in53.975 mm N/A 4.8750 in123.825 mm N/A 1.291 in32.791 mm N/A 1.0000 in25.400 mm N/A 1.4375 in36.513 mm N/A 37100 lbf165000 N N/A 39400 lbf175000 N N/A 72000 N/A
65212 / 65500 N/A 2.1250 in53.975 mm N/A 5 in127 mm N/A 1.75 in44.45 mm N/A 1.375 in34.925 mm N/A 1.75 in44.45 mm N/A 54700 lbf243000 N N/A 66700 lbf297000 N N/A 65000 N/A
65212 / 65501 N/A 2.1250 in53.975 mm N/A 5 in127 mm N/A 1.75 in44.45 mm N/A 1.375 in34.925 mm N/A 1.75 in44.45 mm N/A 54700 lbf243000 N N/A 66700 lbf297000 N N/A 65000 N/A
72212 / 72500 N/A 2.1250 in53.975 mm N/A 5 in127 mm N/A 1.291 in32.791 mm N/A 1.0000 in25.400 mm N/A 1.4375 in36.513 mm N/A 37100 lbf165000 N N/A 39400 lbf175000 N N/A 72000 N/A
72212C / 72500 N/A 2.1250 in53.975 mm N/A 5 in127 mm N/A 1.291 in32.791 mm N/A 1.0000 in25.400 mm N/A 1.4375 in36.513 mm N/A 48200 lbf214000 N N/A 46800 lbf208000 N N/A 72000C N/A
Unit of Measure
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