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ER-Type Bearings

ER-type ball bearings feature an extended inner ring that provides extra shaft support because these versatile bearings are locked to the shaft with setscrews. ER bearings are available in both inch and metric sizes from 12 to 60 mm and 1/2 to 2-7/16 inches. Features include a set-screw lock for fast, secure mounting, OD mounted snap ring for axial location and a wide inner ring with a steel retainer.

ReliaMark ER-Type Bearings

For pricing and availability, please click a part number.
Part Number Shaft Size d Dimensions (mm) (in) Load Ratings Max RPM Wt. kg
mm in A B C D E F G J W Dynamic C N lbf Static Co N lbf
SER201-12MM 12   19.50 11.50 28.30 47.00 12.06 15.08 52.70 31.00 15.90 12800 6600 8800 0.3
SER202-15MM 15   19.50 11.50 28.30 47.00 12.06 15.08 52.70 31.00 15.90 12800 6600
SER203-17MM 17   19.50 11.50 28.30 47.00 12.06 15.08 52.70 31.00 15.90 12800 6600
SER201-8   0.500 0.77 0.45 1.11 1.85 0.47 0.59 2.07 1.22 0.63 2900 2500
SER202-10   0.625 0.77 0.45 1.11 1.85 0.47 0.59 2.07 1.22 0.63 2900 2500
SER204-20MM 20   19.50 11.50 28.30 47.00 12.06 15.08 52.70 31.00 15.90 12800 6600 7450 0.3
SER204-12   0.750 0.77 0.45 1.11 1.85 0.47 0.59 2.07 1.22 0.63 2900 2500
SER205-25MM 25   21.80 13.10 34.00 52.00 15.29 15.78 57.90 34.90 19.10 13810 7700 6250 0.3
SER205-14   0.875 0.86 0.52 1.34 2.05 0.60 0.62 2.28 1.37 0.75 3140 1750
SER205-15   15/16 0.86 0.52 1.34 2.05 0.60 0.62 2.28 1.37 0.75 3140 1750
SER205-16   1.000 0.86 0.52 1.34 2.05 0.60 0.62 2.28 1.37 0.75 3140 1750
SER206-30MM 30   22.20 15.90 40.30 62.00 17.02 15.93 67.70 38.10 22.20 18920 11000 5300 0.4
SER206-18   1.125 0.87 0.63 1.59 2.44 0.67 0.63 2.67 1.50 0.87 4300 2500
SER206-19   1.188 0.87 0.63 1.59 2.44 0.67 0.63 2.67 1.50 0.87 4300 2500
SER206-20   1.250 0.87 0.63 1.59 2.44 0.67 0.63 2.67 1.50 0.87 4300 2500
SER207-35MM 35   25.40 17.50 46.90 72.00 18.62 18.32 78.60 42.90 23.80 25430 15130 4500 0.5
SER207-20   1.125 1.00 0.69 1.85 2.84 0.73 0.72 3.09 1.69 0.94 5780 3440
SER207-22   1.375 1.00 0.69 1.85 2.84 0.73 0.72 3.09 1.69 0.94 5780 3440
SER207-23   1.438 1.00 0.69 1.85 2.84 0.73 0.72 3.09 1.69 0.94 5780 3440
SER208-40MM 40   30.20 19.00 52.40 80.00 22.62 21.10 86.60 49.20 27.80 32030 19580 4000 0.7
SER208-24   1.500 1.19 0.75 2.06 3.15 0.89 0.83 3.41 1.94 1.09 7820 4450
SER209-45MM 45   30.20 19.00 57.40 85.00 22.62 21.10 91.60 49.20 27.80 32500 20280 3700 0.8
SER209-26   1.625 1.19 0.75 2.26 3.35 0.89 0.83 3.61 1.94 1.09 7390 4610
SER209-27   1.688 1.19 0.75 2.26 3.35 0.89 0.83 3.61 1.94 1.09 7390 4610
SER209-28   1.750 1.19 0.75 2.26 3.35 0.89 0.83 3.61 1.94 1.09 7390 4610
SER210-50MM 50   32.60 19.00 61.80 90.00 22.62 23.84 96.50 51.60 28.60 35000 22830 3400 0.9
SER210-30   1.875 1.28 0.75 2.43 3.54 0.89 0.94 3.80 2.03 1.13 7900 5190
SER210-31   1.938 1.28 0.75 2.43 3.54 0.89 0.94 3.80 2.03 1.13 7900 5190
SER210-32   2.000 1.28 0.75 2.43 3.54 0.89 0.94 3.80 2.03 1.13 7900 5190
SER211-55MM 55   33.40 22.20 68.70 100.00 24.22 23.84 106.50 55.60 30.20 43030 28950 3100 1.2
SER211-32   2.000 1.31 0.87 2.70 3.94 0.95 0.94 4.19 2.19 1.19 9780 6580
SER211-34   2.125 1.31 0.87 2.70 3.94 0.95 0.94 4.19 2.19 1.19 9780 6580
SER211-35   2.188 1.31 0.87 2.70 3.94 0.95 0.94 4.19 2.19 1.19 9780 6580
SER212-60MM 60   39.70 25.40 75.70 110.00 25.82 29.40 116.60 65.10 31.80 52000 35590 2800 1.6
SER212-36   2.250 1.56 1.00 2.98 4.34 1.02 1.16 4.59 2.56 1.25 11800 8090
SER212-38   2.375 1.56 1.00 2.98 4.34 1.02 1.16 4.59 2.56 1.25 11800 8090
SER212-39   2.438 1.56 1.00 2.98 4.34 1.02 1.16 4.59 2.56 1.25 11800 8090
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