NTN BEARING CORPORATION OF AMERICA
NTN BEARING CORPORATION OF AMERICA
Head Office
1600 E. Bishop Court, P.O. Box 7604
Mount Prospect, IL 60056-7604, U.S.A.
Phone: 847-298-7500
Fax: 847-699-9744
Toll Free: 800-323-2358
Email: mkt@ntnamerica.com
Website: www.ntnamericas.com
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Four Point Ball Bearings
Four Point Ball Bearings - Dimensions
Unit of Measure
1 2 

Item #

d

D

B

r

Static Load Rating

Dynamic Load Rating

QJ311X1CS155 N/A 2.1654 in55.000 mm N/A 4.7244 in120.000 mm N/A 1.1417 in29.000 mm N/A 0.0787 in2.000 mm N/A 38000 lbf170000 N170.00 kN N/A 23800 lbf106000 N106.00 kN
QJ312 N/A 2.3622 in60.000 mm N/A 5.1181 in130.000 mm N/A 1.2205 in31.000 mm N/A 0.0827 in2.100 mm N/A 44500 lbf198000 N198.00 kN N/A 27400 lbf122000 N122.00 kN
QJ313 N/A 2.5591 in65.000 mm N/A 5.5118 in140.000 mm N/A 1.2992 in33.000 mm N/A 0.0827 in2.100 mm N/A 51500 lbf228000 N228.00 kN N/A 31000 lbf138000 N138.00 kN
QJ314 N/A 2.7559 in70.000 mm N/A 5.9055 in150.000 mm N/A 1.3780 in35.000 mm N/A 0.0827 in2.100 mm N/A 58500 lbf260000 N260.00 kN N/A 35000 lbf155000 N155.00 kN
QJ315 N/A 2.9528 in75.000 mm N/A 6.2992 in160.000 mm N/A 1.4567 in37.000 mm N/A 0.0827 in2.100 mm N/A 66000 lbf294000 N294.00 kN N/A 38000 lbf169000 N169.00 kN
QJ316 N/A 3.1496 in80.000 mm N/A 6.6929 in170.000 mm N/A 1.5354 in39.000 mm N/A 0.0827 in2.100 mm N/A 74000 lbf330000 N330.00 kN N/A 41000 lbf183000 N183.00 kN
QJ317 N/A 3.3465 in85.000 mm N/A 7.0866 in180.000 mm N/A 1.6142 in41.000 mm N/A 0.1181 in3.000 mm N/A 83000 lbf370000 N370.00 kN N/A 44500 lbf197000 N197.00 kN
QJ318 N/A 3.5433 in90.000 mm N/A 7.4803 in190.000 mm N/A 1.6535 in42.000 mm N/A 0.1181 in3.000 mm N/A 92000 lbf410000 N410.00 kN N/A 47500 lbf212000 N212.00 kN
QJ319 N/A 3.7402 in95.000 mm N/A 7.8740 in200.000 mm N/A 1.7717 in45.000 mm N/A 0.1181 in3.000 mm N/A 101000 lbf450000 N450.00 kN N/A 51000 lbf227000 N227.00 kN
QJ320 N/A 3.9370 in100.000 mm N/A 8.4646 in215.000 mm N/A 1.8504 in47.000 mm N/A 0.1181 in3.000 mm N/A 132000 lbf585000 N585.00 kN N/A 61500 lbf273000 N273.00 kN
QJ321 N/A 4.1339 in105.000 mm N/A 8.8583 in225.000 mm N/A 1.9291 in49.000 mm N/A 0.1181 in3.000 mm N/A 132000 lbf585000 N585.00 kN N/A 61500 lbf273000 N273.00 kN
QJ322 N/A 4.3307 in110.000 mm N/A 9.4488 in240.000 mm N/A 1.9685 in50.000 mm N/A 0.1181 in3.000 mm N/A 153000 lbf680000 N680.00 kN N/A 68500 lbf305000 N305.00 kN
QJ324 N/A 4.7244 in120.000 mm N/A 10.2362 in260.000 mm N/A 2.1654 in55.000 mm N/A 0.1181 in3.000 mm N/A 172000 lbf765000 N765.00 kN N/A 73000 lbf325000 N325.00 kN
Unit of Measure
1 2