Full Complement Nav4903 Nav4910 Nav4930 Needle Roller Bearings with Inner Ringfull Complement

• Customization: Available
• Cage: Without Cage
• Rows Number: Single
• Model NO.: NAV4903 NAV4910 NAV4930
• Load Direction: Radial Bearing
• Style: With Inner Ring
• Material: Bearing Steel
• Type: Open, 2RS, Zz
• Structure: Spherical/Cylindrical/Deep Groove/Angular Contact
• Precision Rating: P0 P6 P5 P4 P2
• Vibration: V1 V2 V3 V4
• Clearance: C2 C0 C3 C4 C5
• Hardness: 59-63 HRC
• Stock Qty: Rich /Great Supplying Ability
• Tolerance: ABEC1, 3, 5, 7
• After Service: Within 24 Hours Response
• Delivery Method: Air, Sea, Express
• Transport Package: Industrial or Single Box as Request
• Specification: standard
• Trademark: DOKING
• Origin: China
• HS Code: 84824000
• Production Capacity: 2500000/Year

Product Description

PRODUCT DETAILS

Full complement needle roller bearings with inner rings are key components of industrial equipment, highly favored for their unique design and excellent performance. Its outer ring is equipped with oil holes and dual gear edges, which facilitate lubrication. The dual gear edges precisely fix the needle rollers, and it is matched with an inner ring without gear edges. The structure is compact and saves radial space. Fully complement needle rollers endow it with strong radial load-bearing capacity, allowing it to withstand larger radial loads at the same size, especially suitable for space limited and heavy load scenarios such as automotive transmissions and industrial gearboxes. However, due to the absence of a cage, its maximum speed is relatively low and not suitable for ultra high speed operation. Strict precision control is required during installation to ensure precise fit between the inner and outer rings and the needle rollers, and high requirements are placed on the surface hardness and roughness of the shaft neck. The inner ring fully complement needle roller bearings provide reliable support for the stable operation of mechanical equipment due to their high load-bearing capacity and space saving advantages.

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CATALOGUE

Model	d mm	Dmm	Hmm	W kg
NA4900	10	22	13	0.023
NA4901	12	24	13	0.026
NA4902	15	28	13	0.034
NA4903	17	30	13	0.04
NA4904	20	37	17	0.075
NA4905	25	42	17	0.099
NA4906	30	47	17	0.101
NA4907	35	55	20	0.186
NA4908	40	62	22	0.249
NA4909	45	68	22	0.294
NA4910	50	72	22	0.298
NA4911	55	80	25	0.393
NA4912	60	85	25	0.426
NA4913	65	90	25	0.456
NA4914	70	100	30	0.728
NA4915	75	105	30	0.773
NA4916	80	110	30	0.819
NA4917	85	120	35	1.25
NA4918	90	125	35	1.312
NA4919	95	130	35	1.371
NA4920	100	140	20	1.9
NA4922	110	150	40	2.07

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