Cylindrical Roller Bearings NJ Series-Shandong HZK Bearing Manufacturing Co., Ltd.

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Cylindrical Roller Bearings NJ Series

Cylindrical Roller Bearings are bearing in which cylinders are used as the rolling elements as opposed to balls in ball bearings. As such, the rollers have a greater (linear) contact area with the outer ring and are distribute loads across a broader surface. Subsequently, they have a relatively high radial load capacity and are suitable for high speeds. Double-row cylindrical roller bearings have high radial rigidity and are used primarily for precision machine tools.

HZK cylindrical roller bearings are available in a variety of cage types suitable for different scenarios, including EM brass cages, ETVP black nylon cages, FAG process products, ECML integral cages, and E steel cages.

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Product Details

There are different types designated NU, NJ, NUP, N, NF for single-row bearings, and NNU, NN for double-row bearings depending on the design or absence of side ribs. HZK’s cylindrical roller bearings come in the following series with various cage designs and Metric dimensions.

Model number	Basic dimensions(mm) d	Basic dimensions(mm) D	Basic dimensions(mm) B	Rated load (N) Cr	Rated load (N) Cor	Limiting speed (1) (rpm) Grease lubrication	Limiting speed (1) (rpm) oil lubrication	Weight ≈kg
NJ220	100	180	34	249000	305000	3600	4300	3.81
NJ2220	100	180	46	335000	445000	3200	3800	4.69
NJ320	100	215	47	299000	335000	2800	3400	7.69
NJ320	100	215	47	380000	425000	2800	3400	8.63
NJ2320	100	215	73	570000	715000	2400	3000	11.8
NJ420	100	250	58	450000	500000	2600	3000	15.5
NJ221	105	190	36	262000	310000	3400	4000	4.58
NJ421	105	260	60	495000	555000	2400	3000	17.3
NJ1022	110	170	28	131000	174000	3800	4500	2.27
NJ222	110	200	38	293000	365000	3200	3800	5.37
NJ2222	110	200	53	385000	515000	3800	3400	7.65
NJ322	110	240	50	450000	525000	3600	3000	11.8
NJ422	110	280	65	550000	620000	2200	2800	22.1
NJ1024	120	180	28	139000	191000	3400	4300	2.43
NJ224	120	215	40	335000	420000	3000	3400	6.43
NJ2224	120	215	58	450000	620000	2600	3000	9.51

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Shandong HZK Bearing Factory, located in Panzhuang Industrial Park, Linqing City, Shandong Province, covers a total building area of over 10,000 square meters. HZK BEARING FACTORY mainly produces and sells spherical roller bearings, cylindrical roller bearings, deep groove ball bearings, tapered roller bearings, thrust self-aligning roller bearings, automotive wheel bearings, and more. The factory is equipped with fully automated workshops, heat treatment equipment, lathes, grinding machines, ultra-precision equipment, and assembly facilities. We utilize industry-leading production equipment and testing instruments, and have multi-story warehouses to fully guarantee bearing quality and delivery speed. HZK BEARING also customizes various non-standard products. We welcome customers to visit our factory for guidance, business negotiations, and mutual development.