Single Row Cylindrical Roller Bearings

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Description
Technical diameters

Inquiry	PDF	Bearing NO.		Boundary dimensions(mm)							Basic load ratings(kN)		Limiting speed(rpm)		Abutment and fillet dimensions(mm)						Weight (kg)
Inquiry	PDF	New	Old	d	D	B	r 1.2min	r3、4min	Fw	Ew	Cr	Cor	Grease	Oil	da min	db min	Da max	Db max	ra max	rb max	Refer
		NF38/630	30128/630	630	780	112	4	4		745	2100	5400	560	670	646			764	3	3	125
		NU19/630	10329/630	630	850	100	6	6	688		1850	3900	600	700		656	824		5	5	160
		NU29/630	20329/630	630	850	128	6	6	683		3100	6800	600	700		656	824		5	5	220
		NUP29/630	20929/630	630	850	128	6	6	683		3100	6800	600	700		656	824		5	5	230
		NU10/630	10321/630	630	920	128	7.5	7.5	702		3200	6000	450	530		666	887		6	6	285
		NUP10/630	10921/630	630	920	128	7.5	7.5	702		3200	6000	450	530		666	887		6	6	285
		NU20/630	20321/630	630	920	170	7.5	7.5	699		4500	9000	480	560		666	887		6	6	285
		NU30/630	30321/630	630	920	212	7.5	7.5	699		6230	1420	450	530		666	887		6	6	490
		NJ18/670	10428/670	670	820	69	4	4	708		1190	2540	560	670		700	787		3	3	84.5
		NU28/670	20328/670	670	820	88	4	4	711		1500	3950	560	670		700	787		3	3	103
		NU38/670	30328/670	670	820	112	4	4	711		1920	5200	530	630		700	787		3	3	128
		NU19/670	10329/670	670	900	103	6	6	728		2100	4500	530	630		696	874		5	5	195
		NUP19/670	10929/670	670	900	103	6	6	728		2100	4500	530	630		696	874		5	5	195
		NU10/670	10321/670	670	980	136	7.5	7.5	747		3500	5890	430	500		703	947		6	6	350
		NU20/670	20321/670	670	980	180	7.5	7.5	746		5160	9800	430	500		703	947		6	6	480
		NU30/670	30321/670	670	980	230	7.5	7.5	744	914	6420	12100	430	500		703	947		6	6	600
		NU18/710	10328/710	710	870	74	4	4	750		1400	3080	530	630		726	854		3	3	97.5
		N28/710	20028/710	710	870	95	4	4		831	1870	4650	530	630	726			854	3	3	130
		NU19/710	10329/710	710	950	106	6	6	770		2350	5500	500	600		736	924		5	5	214
		NU29/710	20329/710	710	950	140	6	6	766		3450	8400	500	600		736	924		5	5	295
		NUP29/710	20929/710	710	950	140	6	6	766		3450	8400	500	600		736	924		5	5	300
		NU10/710	321/710	710	1030	140	7.5	7.5	778		4500	8500	430	500		743	997		6	6	415
		NU20/710	20321/710	710	1030	185	7.5	7.5	787		5600	11200	400	480		743	997		6	6	540
		NU18/750		750	920	78	5	5	794		1240	3240	500	600		770	900		4	4	110
		NU28/750		750	920	100	5	5	797		1860	5000	500	600		786	882		4	4	145
		NF19/750		750	1000	112	6	6		943	2600	5760	480	560	776			974	5	5	265
		NU10/750		750	1090	150	7.5	7.5	832		4650	8600	360	430		783	1057		6	6	490
		NU20/750		750	1090	195	7.5	7.5	832		6700	13800	360	430		783	1057		6	6	635
		NJ18/800		800	980	82	5	5	848		1650	3980	450	530		837	940		4	4	145
		NU38/800		800	980	136	5	5	848		2530	7050	400	480		837	940		4	4	219
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Features:

1. The rollers and raceways are in line contact or trimmed line contact. They have large radial load-bearing capacity and are suitable for withstanding heavy loads and impact loads.

2. The friction coefficient is small, suitable for high speeds, and the limit speed is close to that of deep groove ball bearings.

3. N type and NU type can move axially, can adapt to changes in the relative position of the shaft and housing caused by thermal expansion or installation errors, and can be used as free end supports.

4. The processing requirements for the shaft or seat hole are relatively high. After the bearing is installed, the relative deflection of the outer ring axis must be strictly controlled to avoid contact stress concentration.

5. The inner or outer ring can be separated for easy installation and removal