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NTN 30304 TAPEERED ROLLER BEARING
Product information
Bore diameter
20 mm
Outside diameter
47 mm
Width, total
15.25 mm
Width, inner ring
14 mm
Width, outer ring
12 mm
Contact angle
12.953 °
Performance
Basic dynamic load rating
34.1 kN
Basic static load rating
28 kN
Reference speed
12 000 r/min
Limiting speed
15 000 r/min
Product net weight
0.124 kg
NTN Bearing Corporation of America was established in 1963 to support local sales of NTN bearings in the American market. The corporation was now capable of manufacturing ball bearings, spherical, tapered, cylindrical, and needle roller bearings and automotive constant velocity joints. By the mid 1980s, NTN had acquired the Bower™ brand from Federal-Mogul Corporation, thereby expanding the company’s catalog of tapered and cylindrical roller bearings. Ten years later, NTN acquired BCA™, again from Federal-Mogul, to round out its product line with automotive clutch release bearings and specialty agricultural bearing assemblies.
Tapered roller bearings feature a cup and cone assembly. The cup comprises the outer ring and the cone assembly consists of the inner ring, rollers, and cage. This bearing construction accommodates combined loads and provides low friction during operation. By adjusting one single-row tapered roller bearing against a second tapered roller bearing and applying a preload, a rigid bearing application can be achieved.
WHY CHOOSE US
Free Samples
Polymer provides free samples to customers, and customers only need to pay the corresponding shipping costs.
Fast Shipping
Models in stock in the warehouse will be shipped within 24 hours, and models out of stock in the warehouse will be shipped within 72 hours.
Quality Control
Polymer has a complete quality inspection system, and after 5 steps of quality inspection, it will ensure that each product is qualified.
Aftersales Guarantee
We have a complete after-sales guarantee system and will be responsible for each of our orders. We welcome old customers to repurchase.
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