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Single Row Cylindrical Roller Bearings

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Design Variants

Misalignment

Cage

Tolerance

Internal clearance

Single row cylindrical roller bearings are available in several basic designs that differ from each other in number and arrangement of their flanges, the most important design variants are shown below.

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N type bearings features two integral flanges on the inner ring and outer ring without flanges.

NU type bearings features two integral flanges on the outer ring and inner ring without flanges, N and NU type bearings belong to the Non-locating bearings, they are not able to accommodate any axial loads.

NJ type bearings features two integral flanges on the outer ring and one integral flange on the inner ring, this allows them to accommodate axial loads in one direction only.

NUP type bearings have two integral flanges on the outer ring, one integral flange on the inner ting and a loose rib, so it is locating bearing and can accept axial loads in either direction.

NJ type bearings used in conjunction with thrust collars can build a locating bearing, which can accept axial loads in either direction.

Single row cylindrical roller bearings are available in several basic designs that differ from each other in number and arrangement of their flanges, the most important design variants are shown below.

N type bearings features two integral flanges on the inner ring and outer ring without flanges.
NU type bearings features two integral flanges on the outer ring and inner ring without flanges, N and NU type bearings belong to the Non-locating bearings, they are not able to accommodate any axial loads.
NJ type bearings features two integral flanges on the outer ring and one integral flange on the inner ring, this allows them to accommodate axial loads in one direction only.
NUP type bearings have two integral flanges on the outer ring, one integral flange on the inner ting and a loose rib, so it is locating bearing and can accept axial loads in either direction.
NJ type bearings used in conjunction with thrust collars can build a locating bearing, which can accept axial loads in either direction.
DHK single row cylindrical roller bearings have the rolling elements with modified outer diameter and crowning inner ring raceway, which minimize edge loading stresses between the rollers and raceway.
For applications operating under normal conditions the misalignment must not exceed 4 angular minutes.
For applications where higher misalignment may occur, DHK also produce single row cylindrical roller bearings with special crowned inner ring raceways (suffix B) to enable higher misalignments during operation.
DHK single row cylindrical roller bearings are available with all kinds material and design variants of cage upon request.
The most important materials and design variants of DHK single row cylindrical roller bearing cages are shown below.
Reinforced polyamide cages:
TN normal design of polyamide cage features holding lips on both side of roller pocket.
TN1 These are the enforced design of TN type.
TN2 Features holding lips on one side of roller pockets.This make it can raise the wall thickness of the cage at no-holding lip side, and therefore raised the strength of the cages.
Pressed Steel Cage: JP, JP1
Solid brass cages
M (MA, MB): normal design, features cage cover and cage body, rivetted by the steel rivets.
M2 (MA2, MB2): features cage body with round rivetting heads on its self and cage cover.
M6(MA6, MB6): features cage body with square riveting heads on its self and cage cover.

DHK single row cylindrical roller bearings are produced to normal tolerance class (PN) as standard.

DHK also can provide these bearings with closer tolerance class such as P6 and P5, tolerance.

Detailed tolerance values are listed in the chapter of tolerance of radial bearings, page 8.

Tolerances for DHK single row cylindrical roller bearings (excluding tapered roller bearings)

All dimensions shown in (mm):

Tolerances in (um):

Inner Ring

PN/(Normal)

Nominal Bore diameter		Deviation dmp	Variation Vdp Series			Variation Vdmp	Taper bore 1:12 Deviation/ Variation
>	<=	△dmp	7．8．9	0．1	2．3．4	Vdmp	△dmp	△d1mp-dmp	Vdp
2.5 10		0 -8	10	8	6	6	+15 0	+15 0	10
10 18		0 -8	10	8	6	6	+18 0	+18 0	10
18 30		0 -10	13	10	8	8	+21 0	+21 0	13
30 50		0 -12	15	12	9	9	+25 0	+25 0	15
50 80		0 -15	19	19	11	11	+30 0	+30 0	19
80 120		0 -20	25	25	15	15	+35 0	+35 0	25
120 180		0 -25	31	31	19	19	+40 0	+40 0	31
180 250		0 -30	38	38	23	23	+46 0	+46 0	38
250 315		0 -35	44	44	26	26	+52 0	+52 0	44
315 400		0 -40	50	50	30	30	+57 0	+57 0	50
400 500		0 -45	56	56	34	34	+63 0	+63 0	56
500 630		0 -50	63	63	38	38	+70 0	+70 0
630 800		0 -75					+80 0	+80 0
800 1000		0 -100					+90 0	+90 0
1000 1250		0 -125					+105 0	+105 0
1250 1600		0 -160
1600 2000		0 -200

Outer ring

PN/(Normal)

Nominal Outer diameter		Deviation	Variation Vdp Series			Sealed bearing	Variation	Radial runout
>	<=	△Dmp	7．8．9	0．1	2．3．4	2 3 4	VDmp	Kea
6 18		0 -8	10	8	6	10	6	15
18 30		0 -9	12	9	7	12	7	15
30 50		0 -11	14	11	8	16	8	20
50 80		0 -13	16	13	10	20	10	25
80 120		0 -15	19	19	11	26	11	35
120 150		0 -18	23	23	14	30	14	40
150 180		0 -25	31	31	19	38	19	45
180 250		0 -30	38	38	23		23	50
250 315		0 -35	44	44	26		26	60
315 400		0 -40	50	50	30		30	70
400 500		0 -45	56	56	34		34	80
500 630		0 -50	63	63	38		38	100
630 800		0 -75	94	94	55		55	120
800 1000		0 -100	125	125	75		75	140
1000 1250		0 -125						160
1250 1600		0 -160						190
1600 2000		0 -200						220
2000 2500		0 -250						250

DHK single row cylindrical roller bearings are produced to normal tolerance class (PN) as standard.

DHK also can provide these bearings with closer tolerance class such as P6 and P5, tolerance.

Detailed tolerance values are listed in the chapter of tolerance of radial bearings, page 8.

Tolerances for DHK single row cylindrical roller bearings (excluding tapered roller bearings)

All dimensions shown in (mm):

Tolerances in (um):

Inner Ring

PN/(Normal)

Nominal Bore diameter		Deviation dmp	Variation Vdp Series			Variation Vdmp	Taper bore 1:12 Deviation/ Variation
>	<=	△dmp	7．8．9	0．1	2．3．4	Vdmp	△dmp	△d1mp-dmp	Vdp
2.5 10		0 -8	10	8	6	6	+15 0	+15 0	10
10 18		0 -8	10	8	6	6	+18 0	+18 0	10
18 30		0 -10	13	10	8	8	+21 0	+21 0	13
30 50		0 -12	15	12	9	9	+25 0	+25 0	15
50 80		0 -15	19	19	11	11	+30 0	+30 0	19
80 120		0 -20	25	25	15	15	+35 0	+35 0	25
120 180		0 -25	31	31	19	19	+40 0	+40 0	31
180 250		0 -30	38	38	23	23	+46 0	+46 0	38
250 315		0 -35	44	44	26	26	+52 0	+52 0	44
315 400		0 -40	50	50	30	30	+57 0	+57 0	50
400 500		0 -45	56	56	34	34	+63 0	+63 0	56
500 630		0 -50	63	63	38	38	+70 0	+70 0
630 800		0 -75					+80 0	+80 0
800 1000		0 -100					+90 0	+90 0
1000 1250		0 -125					+105 0	+105 0
1250 1600		0 -160
1600 2000		0 -200

Outer ring

PN/(Normal)

Nominal Outer diameter		Deviation	Variation Vdp Series			Sealed bearing	Variation	Radial runout
>	<=	△Dmp	7．8．9	0．1	2．3．4	2 3 4	VDmp	Kea
6 18		0 -8	10	8	6	10	6	15
18 30		0 -9	12	9	7	12	7	15
30 50		0 -11	14	11	8	16	8	20
50 80		0 -13	16	13	10	20	10	25
80 120		0 -15	19	19	11	26	11	35
120 150		0 -18	23	23	14	30	14	40
150 180		0 -25	31	31	19	38	19	45
180 250		0 -30	38	38	23		23	50
250 315		0 -35	44	44	26		26	60
315 400		0 -40	50	50	30		30	70
400 500		0 -45	56	56	34		34	80
500 630		0 -50	63	63	38		38	100
630 800		0 -75	94	94	55		55	120
800 1000		0 -100	125	125	75		75	140
1000 1250		0 -125						160
1250 1600		0 -160						190
1600 2000		0 -200						220
2000 2500		0 -250						250

Dimensions and Parameters

Inquiry	Bearing NO.	Dimension						Basic load ratings		Limiting speed(rpm )		Bearing Dimension				Oblique retaining ring		Weight
Inquiry	Bearing NO.	d	D	B	r1 r2 min	r3 r4 min	S ≈	Dynamic(Cr)	Static(Cor)	Grease	Oil	E	F	d1 ≈	D1 ≈	B2	B3	Bearing	Oblique retaining ring
	NJ415M	75	190	45	3	3	--	260	270	3200	3800	--	104.5	116	149.8	13	21.5	6.45	0.71
	NUP415M	75	190	45	3	3	--	260	270	3200	3800	--	104.5	116	149.8	--	--	6.45	--
	NU1016M	80	125	22	1.1	1	3.8	76.5	98	5000	6000	--	91.5	96	109.1	6	11.5	1.03	0.13
	N216E	80	140	26	2	2	1.2	140	170	4000	4800	127.3	--	101.7	--	--	--	1.54	--
	NU216E	80	140	26	2	2	1.2	140	170	4000	4800	--	95.3	--	121.6	--	--	1.54	--
	NJ216E	80	140	26	2	2	--	140	170	4000	4800	--	95.3	101.7	121.6	8	12.5	1.54	0.22
	NUP216E	80	140	26	2	2	--	140	170	4000	4800	--	95.3	101.7	121.6	--	--	1.54	--
	NU2216E	80	140	33	2	2	2.5	186	245	4000	4800	--	95.3	--	121.6	--	--	2.1	--
	NJ2216E	80	140	33	2	2		186	245	4000	4800	--	95.3	101.7	121.6	8	12.5	2.1	0.22
	NUP2216E	80	140	33	2	2		186	245	4000	4800	--	95.3	101.7	121.6	--	--	2.1	--
	NU3216M	80	140	44.4	2	2	5	185	282	4200	5000	--	95.3	--	--	--	--	2.91	--
	N316E	80	170	39	2.1	2.1	2.8	155	275	3200	3800	151	--	110.6	--	--	--	3.95	--
	NU316E	80	170	39	2.1	2.1	2.8	255	275	3200	3800	--	101	--	142.7	--	--	3.95	--
	NJ316E	80	170	39	2.1	2.1	--	255	275	3200	3800	--	101	110.6	142.7	11	17	3.95	0.47
	NUP316E	80	170	39	2.1	2.1	--	255	275	3200	3800	--	101	110.6	142.7	--	--	3.95	--
	NU2316E	80	170	58	2.1	2.1	3.6	355	425	3200	3800	--	101	--	142.7	--	--	5.9	--
	NJ2316E	80	170	58	2.1	2.1	--	355	425	3200	3800	--	101	110.6	142.7	11	20	5.9	0.5
	NUP2316E	80	170	58	2.1	2.1	--	355	425	3200	3800	--	101	110.6	142.7	--	--	5.9	--
	N416M	80	200	48	3	3	4.6	300	310	3000	3600	170	--	122	--	--	--	8.3	--
	NU416M	80	200	48	3	3	4.6	300	310	3000	3600	--	101	--	158.8	--	--	8.3	--
	NJ416M	80	200	48	3	3	--	300	310	3000	3600	--	110	122	158.8	13	22	8.3	0.79
	NUP416M	80	200	48	3	3	--	300	310	3000	3600	--	110	122	158.8	--	--	8.3	--
	NU1017M	85	130	22	1.1	1	4	78	104	4800	5600	--	96.5	101	114.1	6	11.5	1.1	0.14
	N217E	85	150	28	2	2	2	163	193	3800	4500	136.5	--	107.6	--	--	--	1.9	--
	NU217E	85	150	28	2	2	2	163	193	3800	4500	--	100.5	--	130.3	--	--	1.9	--
	NJ217E	85	150	28	2	2	--	163	193	3800	4500	--	100.5	107.6	130.3	8	12.5	1.9	0.25
	NUP217E	85	150	28	2	2	--	163	193	3800	4500	--	100.5	107.6	130.3	--	--	1.9	--
	NU2217E	85	150	36	2	2	2.4	216	275	3800	4500	--	100.5	--	130.3	--	--	2.6	--
	NJ2217E	85	150	36	2	2	--	216	275	3800	4500	--	100.5	107.6	130.3	8	13	2.6	0.25
	NUP2217E	85	150	36	2	2	--	216	275	3800	4500	--	100.5	107.6	130.3	--	--	2.6	--
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