Generally speaking, Timken bearing tolerances is split between three different aspects, the running accuracy, the external dimensional accuracy and the machining accuracy. In the following I will make a brief introduction of the three aspects of Timken bearing tolerances separately!

Running accuracy is generally referred to as the runout and is a measure of the degree of eccentricity and squareness of the bearing. The measurements most often used are that of the inner and outer ring radial runout, a bearing with a high degree of radial runout will produce a greater vibration than a bearing with a low degree of radial runout, this becomes more noticeable at higher speeds.

This measures the accuracy of the external dimensions of the bearing such as the bore, outer diameter, inner ring width and outer ring width. The difference between the actual measurement and the expected measurement is referred to as the dimensional deviation. The accuracy of the dimensions is important for determining shaft and housing fits.

The machining accuracy measures the variation of the dimensions when measured on a single bearing and then compared to one another. The variation is then the difference between the largest and smallest measurement on the bearing while the mean variation is taken as the average dimensional difference of the measurements taken. This is important for determining the precision of the manufacturing process and is important when considering tolerances for shafts and housings

The following are some of Timken bearings most saleable in the world:

50.800 123.825 38.100 555 552                     68 pcs in stock
50.800 127.000 44.450 65200 65500              74 pcs in stock
50.800 127.000 50.800 6279 6220                 53 pcs in stock
51.592 90.000 20.000  368-S 362                   32 pcs in stock
51.592 100.000 25.000 377-S 372                  12 pcs in stock
52.388 100.000 25.000 377 372                     48 pcs in stock
52.388 100.000 28.173 3767 373                   29 pcs in stock
52.388 107.950 32.557 468 452                     36 pcs in stock
52.388 110.000 36.512 3959 3927X               29 pcs in stock
52.388 111.125 38.100 540 532                     38 pcs in stock
53.975 95.250 27.783 33895 33821                46 pcs in stock
53.975 98.425 21.000 389A 382                     26 pcs in stock
53.975 104.775 30.162 45287 45220              15 pcs in stock
53.975 107.950 32.557 456 452                     34 pcs in stock
50.800 123.825 36.512 72200C 72487            42 pcs in stock
50.800 123.825 36.512 72200 72487              38 pcs in stock
53.975 109.985 29.251 55212C 55434            54 pcs in stock
52.000 85.000 24.500  18204X 18335E           62 pcs in stock
52.388 109.985 29.251 55206 55434              39 pcs in stock
52.388 109.985 29.251 55206C 55434            19 pcs in stock
52.388 89.980 24.750  28584 28520               37 pcs in stock
52.388 95.250 27.783  33890 33821               41 pcs in stock
50.815 100.000 35.000 XGA33211 Y33211      23 pcs in stock
52.000 90.000 21.750  XGA30210 Y30210       41 pcs in stock
53.975 104.775 36.512 HM807049 HM807010  35 pcs in stock
53.975 87.312 18.258 L507945 L507910         28 pcs in stock
53.975 88.900 19.050 LM806649 LM806610     57 pcs in stock
53.975 88.900 20.241 LM806349C LM806310   33 pcs in stock
50.800 127.000 36.512 HM813836 HM813810  24 pcs in stock

No matter where you are and how many pieces you want, we will do our best to quote you the best price and first class service. Looking forward to hearing from you soon.

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