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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Clearance-Adjustable Needle Roller Bearings w/ Inner Ring - Dimensions
Unit of Measure
1 

Item #

d

D

B

r

Static Load Rating

Dynamic Load Rating

NA49/32S N/A 1.2598 in32.000 mm N/A 2.0472 in52.000 mm N/A 0.7874 in20.000 mm N/A 0.0236 in0.600 mm N/A 6250 lbf27800 N27.80 kN N/A 3950 lbf17600 N17.60 kN
NA4905S N/A 0.9843 in25.000 mm N/A 1.6535 in42.000 mm N/A 0.6693 in17.000 mm N/A 0.0118 in0.300 mm N/A 3600 lbf16000 N16.00 kN N/A 2770 lbf12300 N12.30 kN
NA4906S N/A 1.1811 in30.000 mm N/A 1.8504 in47.000 mm N/A 0.6693 in17.000 mm N/A 0.0118 in0.300 mm N/A 4850 lbf21600 N21.60 kN N/A 3350 lbf14900 N14.90 kN
NA4907S N/A 1.3780 in35.000 mm N/A 2.1654 in55.000 mm N/A 0.7874 in20.000 mm N/A 0.0236 in0.600 mm N/A 6700 lbf29800 N29.80 kN N/A 4100 lbf18300 N18.30 kN
NA4908S N/A 1.5748 in40.000 mm N/A 2.4409 in62.000 mm N/A 0.8661 in22.000 mm N/A 0.0236 in0.600 mm N/A 9100 lbf40500 N40.50 kN N/A 5050 lbf22500 N22.50 kN
NA4909S N/A 1.7717 in45.000 mm N/A 2.6772 in68.000 mm N/A 0.8661 in22.000 mm N/A 0.0236 in0.600 mm N/A 9800 lbf43500 N43.50 kN N/A 5200 lbf23100 N23.10 kN
NA4910S N/A 1.9685 in50.000 mm N/A 2.8346 in72.000 mm N/A 0.8661 in22.000 mm N/A 0.0236 in0.600 mm N/A 11000 lbf49000 N49.00 kN N/A 5550 lbf24700 N24.70 kN
NA4911S N/A 2.1654 in55.000 mm N/A 3.1496 in80.000 mm N/A 0.9843 in25.000 mm N/A 0.0394 in1.000 mm N/A 14700 lbf65500 N65.50 kN N/A 7400 lbf33000 N33.00 kN
NA4912S N/A 2.3622 in60.000 mm N/A 3.3465 in85.000 mm N/A 0.9843 in25.000 mm N/A 0.0394 in1.000 mm N/A 15500 lbf69000 N69.00 kN N/A 7650 lbf34000 N34.00 kN
NA4913S N/A 2.5591 in65.000 mm N/A 3.5433 in90.000 mm N/A 0.9843 in25.000 mm N/A 0.0394 in1.000 mm N/A 15800 lbf70500 N70.50 kN N/A 7650 lbf34000 N34.00 kN
NA4914S N/A 2.7559 in70.000 mm N/A 3.9370 in100.000 mm N/A 1.1811 in30.000 mm N/A 0.0394 in1.000 mm N/A 21100 lbf94000 N94.00 kN N/A 10000 lbf44500 N44.50 kN
NA4915S N/A 2.9528 in75.000 mm N/A 4.1339 in105.000 mm N/A 1.1811 in30.000 mm N/A 0.0394 in1.000 mm N/A 22300 lbf99000 N99.00 kN N/A 10200 lbf45500 N45.50 kN
NA4916S N/A 3.1496 in80.000 mm N/A 4.3307 in110.000 mm N/A 1.1811 in30.000 mm N/A 0.0394 in1.000 mm N/A 23400 lbf104000 N104.00 kN N/A 10500 lbf46500 N46.50 kN
NA4917S N/A 3.3465 in85.000 mm N/A 4.7244 in120.000 mm N/A 1.3780 in35.000 mm N/A 0.0433 in1.100 mm N/A 31500 lbf140000 N140.00 kN N/A 12800 lbf57000 N57.00 kN
NA4918S N/A 3.5433 in90.000 mm N/A 4.9213 in125.000 mm N/A 1.3780 in35.000 mm N/A 0.0433 in1.100 mm N/A 33000 lbf146000 N146.00 kN N/A 13200 lbf58500 N58.50 kN
NA4919S N/A 3.7402 in95.000 mm N/A 5.1181 in130.000 mm N/A 1.3780 in35.000 mm N/A 0.0433 in1.100 mm N/A 34000 lbf152000 N152.00 kN N/A 13400 lbf59500 N59.50 kN
NA4920S N/A 3.9370 in100.000 mm N/A 5.5118 in140.000 mm N/A 1.5748 in40.000 mm N/A 0.0433 in1.100 mm N/A 38000 lbf168000 N168.00 kN N/A 16200 lbf72000 N72.00 kN
NA4922S N/A 4.3307 in110.000 mm N/A 5.9055 in150.000 mm N/A 1.5748 in40.000 mm N/A 0.0433 in1.100 mm N/A 41500 lbf184000 N184.00 kN N/A 17000 lbf75500 N75.50 kN
Unit of Measure
1