angular contact ball bearings

Angular contact ball bearings feature raceways with high and low shoulders. These opposing raceways are designed to carry thrust load in one direction. NTN can preload the bearings at the factory so that the correct load will develop once the bearing is put into service. The bearings in this series are assembled with a specific internal clearance, so that they will have a specified contact angle under load. The standard contact angle used by NTN is 30° but, in many cases, a 40° contact angle can also be specified. We also offer special high-speed bearings with phenolic resin cages with a 15° contact angle.

Double row angular contact ball bearings have an inner and outer ring with a double raceway. The two rows are so related that the contact angle is similar to a pair of back-to-back single row bearings. NTN’s 5200 and 5300 series offer continuous races and can carry thrust loads in either direction. The 3200 and 3300 series have filling slots, so it is necessary to mount them with the thrust load acting against the un-notched face of the rings.

Bearing Number	Bore Dia	Outer DIa	Width	Size
150 mm x 320 mm x 65 mm NKE 7330-B-MP angular contact ball bearings	3 mm	8 mm	115 mm	1.8
AST H71940AC/HQ1 angular contact ball bearings	850 r/min	0.078	190 mm	540 mm
AST 5209 angular contact ball bearings	200-RDM Series (from	230.0000 mm	221000 N	9000 rpm
AST 5208 angular contact ball bearings	SR-36-30	66.675 mm	679.45 mm	75.6 kN
AST 71918AC angular contact ball bearings	7800 N	3250 N	13000 rpm	15.000 mm
AST 5304 angular contact ball bearings	150 mm	110.000 kN	6412	73 min
AST H71915C/HQ1 angular contact ball bearings	One Seal	130.0000 mm	33800 N	1.00 mm
AST H7038AC/HQ1 angular contact ball bearings	20 mm	5600 r/min	10.6 kN	0.098 kg
AST 7014C angular contact ball bearings	170.0000 mm	4300 rpm	124000 N	3200 rpm
30 mm x 72 mm x 19 mm ISB QJ 306 N2 M angular contact ball bearings	241.3 mm	117.805 mm	831.85 mm	EPR 23
30 mm x 72 mm x 30,2 mm ISB 3306 ATN9 angular contact ball bearings	0.60 mm	12000 rpm	28.00 mm	1.00 mm
55 mm x 120 mm x 49,2 mm ISB 3311 ATN9 angular contact ball bearings	4.410 kN	25 mm	17 mm	1.1 mm