Tianjin Zhengda Huatong Technology Co., Ltd

Cylindrical roller bearing

It is a bearing with cylindrical rollers and raceways in linear contact. It has a large load-bearing capacity and mainly bears radial loads. The rolling element has little friction with the retaining edge of the ring, making it suitable for high-speed rotation.
According to the presence or absence of retaining edges on the ring, it is divided into single row bearings such as NU, NJ, NUP, N, NF, and double row bearings of NNU and NN types.
This bearing is a separable structure with inner and outer rings.
Cylindrical roller bearings without retaining edges on the inner or outer ring can be used as free end bearings due to their relative axial movement between the inner and outer rings. The inner or outer ring of a cylindrical roller bearing has two retaining edges and the other has a single retaining edge, which can withstand a certain degree of unidirectional axial load.
Double row cylindrical roller bearings have high radial load stiffness and are mainly used for machine tool spindles.
Generally, steel plate stamped retainers or copper alloy car made retainers are used, but some also use polyamide formed retainers.

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2D Graphics

Specification Parameters

Basic dimensions mm							Basic load ratings kN		Limit Rotational Speed r_min		Bearing part number	Mounting dimensions mm							Weight kg	Inclined retaining ring
d	D	B	r_1min	r_min	F	E	Cr	Cor	Grease lubrication	Oil lubrication	Bearing part number	damin	damax	dbmin	Damax	Damin	ramax	rbmax	Weight	Bearing part number	Weight	A1	A2	r3.r4
45	100	25	1.5	1.5	58.5		108	96	6300	7500	NU309M/C3	53	56	61	92		1.5	1.5	0.992
45	100	25	1.5	1.5		88.5	108	96	6300	7500	NCL309E/YA	53	84		92	90.5	1.5	1.5	0.872
45	100	25	1.5	1.5	58.5		108	96	6300	7500	NJ309ETN1	53	56	67	92		1.5	1.5	0.891
45	100	25	1.5	1.5		88.5	108	96	6300	7500	NCL309EN/YA	53	84		92	90.5	1.5	1.5	0.872
45	100	25	1.5	1.5		86.5	108	96	6300	7500	N309J	53	84		92	90.5	1.5	1.5	0.82
45	100.038	25	1.5	1.5		86.5	108	96	6300	7500	NF309X1MR/YA1	53	84		92	90.5	1.5	1.5	1.03
45	100	25	1.5	1.5		86.5	108	96	6300	7500	N309M	53	84		92	90.5	1.5	1.5	0.92
45	85	30.16	1.1	1.1	55.52		94.6	119	6300	7500	NU5209XPC3	51	53	58	79		1.1	1.1	0.843
45	85	30.16	1.1	1.7	55.52		94.6	119	6300	7500	NU3209X2M/C9YA6	51	53	58	79		1.5	1.1	0.831
45	85	23	1.1	1.1	54.5		82	78	5600	6700	NJ2209EM	51.5	53	61	78.5		1.1	1.1	0.645
45	85	23	1.1	1.1	54.5		82	78	5600	6700	NJ2209E/C3	51.5	53	61	78.5		1.1	1.1	0.639
45	85	23	1.1	1.1	54.5		82	78	5600	6700	NU2209ETN1/C9	51	53	58	79		1.1	1.1	0.571
45	85	23	1.1	1.1	54.5		82	78	5600	6700	NU2209ETN1	51	53	58	79		1.1	1.1	0.571
45	85	23	1.1	1.1	54.5		82	78	5600	6700	NU2209EM	51	53	58	79		1.1	1.1	0.635
35	80	31	1.1	1.1	46.2		102	94	7000	8500	NU2307EM	41.5	44	48	72		1.1	1.5	0.81
35	80	31	1.5	1.5	46.2		102	94	7000	8500	NJ2307EM	41.5	44	53	72		1.5	1.5	0.823
35	80	31	1.5	1.5	46.2		87	75	7000	8500	NJ2307M	41.5	44	53	72		1.5	1.5	0.833
35	80	21	1.5	1.1	46.2		72	60	8000	9500	NU307EQ1	41.5	44	48	72		1.1	1.5	0.591
35	80	21	1.5	1.1	46.2		72	60	8000	9500	NU307E	41.5	44	48	72		1.1	1.5	0.526
35	80	21	1.5	1.1	46.2		72	60	8000	9500	NU307EMA	41.5	44	48	72		1.1	1.5	0.547
35	80	21	1.5	1.5		70.2	72	60	8000	9500	NF307ETN1-FST	41.5	67		73.5	72	1.5	1.5	0.519
35	80	21	1.5	1.1	46.2		72	60	8000	9500	NU307ETN1/C9	41.5	44	48	72		1.1	1.5	0.5
35	80	21	1.5	1.1	46.2		72	60	8000	9500	NJ307ENRM	41.5	44	53	72		1.1	1.5	0.62
35	80	21	1.5	1.1	46.2		72	60	8000	9500	NU307ENRM	41.5	44	48	72		1.1	1.5	0.607
35	80	21	1.5	1.1	46.2		72	60	8000	9500	NU307M	41.5	44	48	72		1.1	1.5	0.591
35	80	21	1.5	1.1		70.2	72	60	8000	9500	NF307ETN1	41.5	67		73.5	72	1.1	1.5	0.519
35	80	21	1.5	1.1		70.2	72	60	8000	9500	NF307M	41.5	67		73.5	72	1.1	1.5	0.61
35	80	21	1.5	1.1	46.2		72	60	8000	9500	NJ307E	41.5	44	53	72		1.1	1.5	0.54

Bearing

Mechanical Sealing

Compressor

Cylindrical roller bearing

3D Graphics

2D Graphics

Specification Parameters

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