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Needle Roller Bearing - Without Inner Ring, Machined, RNA49 Series (Part Numbers)

Volume Discount

IKO

IKO Machined Type Needle Roller Bearings are bearings with a low sectional height and large load ratings. The outer ring has high rigidity and can easily be used even for light alloy housings. These bearings are available in metric series and inch series, both of which have the caged type and the full complement type. It is therefore possible to select a suitable bearing for use under various conditions such as heavy loads and high-speed or low-speed rotations. In addition, there are bearings with and without an inner ring. As the type without inner ring uses a shaft as the raceway surface, a compact design is possible.

Part Number

Configured Part Number is shown.

RNA4903

Product Specifications
Part Numbers
Catalog

Shaft dia. mm	Identification number	Mass (Ref.) g	Boundary dimensions			mm	Standard mounting dimension D_a Max. mm	Basic dynamic load rating C N	Basic static load rating C₀ N	Allowable rotational speed rpm
Shaft dia. mm	RNA 49	Mass (Ref.) g	F_w	D	C	r_s min	Standard mounting dimension D_a Max. mm	Basic dynamic load rating C N	Basic static load rating C₀ N	Allowable rotational speed rpm
16	RNA 4901 - - -	18.1 23 29 30	16	24	13	0.3	22	9 660	11 100	25 000
			16	24	16	0.3	22	12 300	15 100	25 000
			16	24	20	0.3	22	15 500	20 400	25 000
			16	24	22	0.3	22	17 100	23 000	25 000
17	- -	24.5 30.5	17	25	16	0.3	23	12 900	16 300	25 000
17	- -	24.5 30.5	17	25	20	0.3	23	16 300	22 000	25 000
18	RNA 49/14 - -	19.9 25.5 32	18	26	13	0.3	24	10 600	12 800	20 000
			18	26	16	0.3	24	13 400	17 500	20 000
			18	26	20	0.3	24	17 000	23 600	20 000
19	- -	27 34	19	27	16	0.3	25	14 000	18 700	20 000
19	- -	27 34	19	27	20	0.3	25	17 700	25 300	20 000
20	RNA 4902 - - -	21.5 27.5 35.5 37	20	28	13	0.3	26	10 900	13 800	20 000
			20	28	16	0.3	26	13 900	18 800	20 000
			20	28	20	0.3	26	17 600	25 400	20 000
			20	28	23	0.3	26	19 300	28 800	20 000
	- -	59.5 69	20	33	20	0.3	31	24 300	26 500	20 000
	- -	59.5 69	20	33	20	0.3	31	29 200	37 200	7 500
21	- -	29 36	21	29	16	0.3	27	14 400	20 000	19 000
21	- -	29 36	21	29	20	0.3	27	18 200	27 100	19 000
22	RNA 4903 - - -	23.5 30 37.5 40.5	22	30	13	0.3	28	11 700	15 600	18 000
			22	30	16	0.3	28	14 900	21 200	18 000
			22	30	20	0.3	28	18 900	28 700	18 000
			22	30	23	0.3	28	20 800	32 500	18 000
	- -	73.5 87	22	34	25	0.3	32	29 100	36 800	18 000
	- -	73.5 87	22	34	25	0.3	32	37 900	57 800	7 000
24	- -	32 40.5	24	32	16	0.3	30	15 300	22 500	17 000
24	- -	32 40.5	24	32	20	0.3	30	19 400	30 500	17 000
25	- - RNA 4904 -	33.5 42 55.5 95.5	25	33	16	0.3	31	15 800	23 700	16 000
			25	33	20	0.3	31	20 000	32 100	16 000
			25	37	17	0.3	35	21 000	25 000	16 000
			25	37	30	0.3	35	35 400	48 900	16 000
	- - - -	71 89 81.5 104	25	38	20	0.3	36	28 900	35 000	16 000
			25	38	25	0.3	36	34 800	44 400	16 000
			25	38	20	0.3	36	33 300	46 500	6 000
			25	38	25	0.3	36	42 400	63 700	6 000
26	- -	34.5 43.5	26	34	16	0.3	32	16 300	24 900	15 000
26	- -	34.5 43.5	26	34	20	0.3	32	20 600	33 800	15 000
28	- - RNA 49/22 -	51.5 83.5 56.5 97.5	28	37	20	0.3	35	21 700	37 100	14 000
			28	37	30	0.3	35	31 100	58 900	14 000
			28	39	17	0.3	37	21 400	28 900	14 000
			28	39	30	0.3	37	36 300	56 900	14 000
29	- -	57 85	29	38	20	0.3	36	21 600	37 200	14 000
29	- -	57 85	29	38	30	0.3	36	30 900	59 100	14 000
30	- - RNA 4905 -	64.5 97.5 64 111	30	40	20	0.3	38	25 100	40 100	13 000
			30	40	30	0.3	38	36 000	63 900	13 000
			30	42	17	0.3	40	23 700	30 700	13 000
			30	42	30	0.3	40	42 100	64 300	13 000
	- -	115 133	30	44	25	0.3	42	37 900	52 100	13 000
	- -	115 133	30	44	25	0.3	42	47 000	76 500	5 000
32	- - RNA 49/28 -	68 102 76.5 133	32	42	20	0.3	40	25 700	42 200	12 000
			32	42	30	0.3	40	36 800	67 200	12 000
			32	45	17	0.3	43	24 500	32 700	12 000
			32	45	30	0.3	43	41 800	64 800	12 000
	-	152.0	32	45	30	0.3	43	58 000	101 000	4 500
35	- - RNA 4906 -	73.5 112 72.5 125	35	45	20	0.3	43	26 900	46 200	11 000
			35	45	30	0.3	43	38 600	73 600	11 000
			35	47	17	0.3	45	25 200	34 700	11 000
			35	47	30	0.3	45	43 000	69 000	11 000
	- -	139 163	35	48	30	0.3	46	47 400	72 300	11 000
	- -	139 163	35	48	30	0.3	46	61 100	110 000	4 500
37	- -	77.5 117	37	47	20	0.3	45	28 200	50 100	11 000
37	- -	77.5 117	37	47	30	0.3	45	40 500	79 800	11 000
38	- -	79 119	38	48	20	0.3	46	28 100	50 200	11 000
	- -	79 119	38	48	30	0.3	46	40 300	80 000	11 000
	- -	168 195	38	52	30	0.6	48	50 800	81 100	11 000
	- -	168 195	38	52	30	0.6	48	64 200	121 000	4 000
40	- - RNA 49/32 -	83 125 96 172	40	50	20	0.3	48	29 400	54 100	10 000
			40	50	30	0.3	48	42 300	86 200	10 000
			40	52	20	0.6	48	31 200	47 800	10 000
			40	52	36	0.6	48	53 500	95 700	10 000
	- -	129 144	40	55	20	0.6	51	37 400	55 700	10 000
	- -	129 144	40	55	20	0.6	51	44 300	73 600	3 500
42	- - RNA 4907 -	86.5 130 113 200	42	52	20	0.3	50	29 900	56 200	9 500
			42	52	30	0.3	50	43 000	89 400	9 500
			42	55	20	0.6	51	32 000	50 100	9 500
			42	55	36	0.6	51	54 900	100 000	9 500
	- -	183 210	42	56	30	0.6	52	53 800	90 100	9 500
	- -	183 210	42	56	30	0.6	52	67 500	133 000	3 500
43	- -	88.5 133	43	53	20	0.3	51	30 500	58 200	9 500
43	- -	88.5 133	43	53	30	0.3	51	43 800	92 600	9 500
45	- - RNA 49/38	92 138 120	45	55	20	0.3	53	31 000	60 200	9 000
			45	55	30	0.3	53	44 600	95 800	9 000
			45	58	20	0.6	54	33 600	54 600	9 000
	- -	193 225	45	59	30	0.6	55	55 100	94 800	9 000
	- -	193 225	45	59	30	0.6	55	70 300	142 000	3 500
47	- -	95 144	47	57	20	0.3	55	31 500	62 200	8 500
47	- -	95 144	47	57	30	0.3	55	45 200	99 100	8 500
48	RNA 4908 - - -	152 205 275 240	48	62	22	0.6	58	41 600	67 400	8 500
			48	62	30	0.6	58	56 300	99 500	8 500
			48	62	40	0.6	58	71 300	135 000	8 500
			48	62	30	0.6	58	72 700	154 000	3 000
50	- -	159 225	50	62	25	0.3	60	43 000	85 300	8 000
	- -	159 225	50	62	35	0.3	60	58 000	125 000	8 000
	- RNA 49/42 -	210 174 245	50	64	30	0.6	60	57 700	104 000	8 000
			50	65	22	0.6	61	42 500	70 300	8 000
			50	64	30	0.6	60	74 600	158 000	3 000
52	RNA 4909 -	197 355	52	68	22	0.6	64	43 500	73 300	7 500
52	RNA 4909 -	197 355	52	68	40	0.6	64	74 600	147 000	7 500
55	- - RNA 49/48	193 255 188	55	68	25	0.3	66	45 400	94 000	7 500
			55	68	35	0.3	66	61 200	138 000	7 500
			55	70	22	0.6	66	44 300	76 300	7 500
58	RNA 4910 -	179 320	58	72	22	0.6	68	46 200	82 100	7 000
	RNA 4910 -	179 320	58	72	40	0.6	68	79 200	164 000	7 000
	- -	515 590	58	77	45	1.0	72	104 000	191 000	7 000
	- -	515 590	58	77	45	1.0	72	135 000	280 000	2 500
60	- - RNA 49/52	187 260 205	60	72	25	0.3	70	47 500	103 000	6 500
			60	72	35	0.3	70	64 100	151 000	6 500
			60	75	22	0.6	71	47 100	85 100	6 500
62	- -	460 520	62	81	38	1.0	76	92 000	166 000	6 500
62	- -	460 520	62	81	38	1.0	76	118 000	241 000	2 500
63	RNA 4911 -	265 475	63	80	25	1.0	75	57 600	97 200	6 500
63	RNA 4911 -	265 475	63	80	45	1.0	75	98 700	194 000	6 500
65	- - RNA 49/58	225 315 275	65	78	25	0.6	74	49 600	112 000	6 000
			65	78	35	0.6	74	67 000	164 000	6 000
			65	82	25	1.0	77	58 900	101 000	6 000
68	- - RNA 4912 -	250 350 285 510	68	82	25	0.6	78	54 800	117 000	6 000
			68	82	35	0.6	78	72 000	166 000	6 000
			68	85	25	1.0	80	60 200	105 000	6 000
			68	85	45	1.0	80	103 000	211 000	6 000
70	- - RNA 49/62	280 395 320	70	85	25	0.6	81	55 500	120 000	5 500
			70	85	35	0.6	81	73 000	171 000	5 500
			70	88	25	1.0	83	61 500	109 000	5 500
	- -	605 690	70	89	45	1.0	84	114 000	228 000	5 500
	- -	605 690	70	89	45	1.0	84	147 000	336 000	2 000
72	RNA 4913 -	325 585	72	90	25	1.0	85	62 700	113 000	5 500
72	RNA 4913 -	325 585	72	90	45	1.0	85	108 000	227 000	5 500
73	- -	335 475	73	90	25	1.0	85	61 100	127 000	5 500
73	- -	335 475	73	90	35	1.0	85	80 400	181 000	5 500
75	- - RNA 49/68	345 485 470	75	92	25	1.0	87	62 100	131 000	5 500
			75	92	35	1.0	87	81 700	186 000	5 500
			75	95	30	1.0	90	79 900	147 000	5 500
80	- - RNA 4914 -	315 445 495 910	80	95	25	1.0	90	59 400	137 000	5 000
			80	95	35	1.0	90	78 100	195 000	5 000
			80	100	30	1.0	95	83 200	158 000	5 000
			80	100	54	1.0	95	134 000	311 000	5 000
83	- -	995 1 090	83	108	45	1.0	103	146 000	270 000	5 000
83	- -	995 1 090	83	108	45	1.0	103	190 000	396 000	1 800
85	- RNA 4915 - -	435 525 610 960	85	105	25	1.0	100	76 300	145 000	4 500
			85	105	30	1.0	100	86 200	169 000	4 500
			85	105	35	1.0	100	102 000	210 000	4 500
			85	105	54	1.0	100	138 000	331 000	4 500
90	- RNA 4916 - -	455 550 640 1 010	90	110	25	1.0	105	77 300	150 000	4 500
			90	110	30	1.0	105	87 300	175 000	4 500
			90	110	35	1.0	105	103 000	217 000	4 500
			90	110	54	1.0	105	143 000	351 000	4 500
93	- -	1 210 1 340	93	118	50	1.0	113	165 000	329 000	4 500
93	- -	1 210 1 340	93	118	50	1.0	113	224 000	509 000	1 600
95	- RNA 49/82 -	495 575 690	95	115	26	1.0	110	79 700	159 000	4 000
			95	115	30	1.0	110	90 000	186 000	4 000
			95	115	36	1.0	110	106 000	231 000	4 000
	- -	1 120 1 230	95	120	45	1.5	112	155 000	305 000	4 000
	- -	1 120 1 230	95	120	45	1.5	112	204 000	455 000	1 600
100	- RNA 4917 - -	525 705 725 1 300	100	120	26	1.0	115	82 400	168 000	4 000
			100	120	35	1.1	114	110 000	244 000	4 000
			100	120	36	1.0	115	110 000	244 000	4 000
			100	120	63	1.1	114	173 000	467 000	4 000
	- -	1 290 1 440	100	125	50	1.5	117	172 000	355 000	4 000
	- -	1 290 1 440	100	125	50	1.5	117	234 000	549 000	1 500
105	- RNA 4918 - -	545 740 760 1 360	105	125	26	1.0	120	84 700	178 000	4 000
			105	125	35	1.1	119	113 000	258 000	4 000
			105	125	36	1.0	120	113 000	258 000	4 000
			105	125	63	1.1	119	178 000	490 000	4 000
110	- RNA 4919 - -	660 770 880 1 420	110	130	30	1.0	125	106 000	240 000	3 500
			110	130	35	1.1	124	116 000	271 000	3 500
			110	130	40	1.0	125	134 000	324 000	3 500
			110	130	63	1.1	124	182 000	514 000	3 500
	- -	1 400 1 560	110	135	50	1.5	127	183 000	395 000	3 500
	- -	1 400 1 560	110	135	50	1.5	127	245 000	603 000	1 400
115	RNA 4920 - -	1 190 2 350 2 600	115	140	40	1.1	134	145 000	329 000	3 500
			115	153	50	1.5	145	233 000	414 000	3 500
			115	153	50	1.5	145	315 000	614 000	1 300
120	-	790.0	120	140	30	1.0	135	93 200	239 000	3 500
125	RNA 4922	1 280	125	150	40	1.1	144	152 000	357 000	3 000
130	-	850.0	130	150	30	1.0	145	96 900	259 000	3 000
135	RNA 4924	1 930	135	165	45	1.1	159	187 000	435 000	3 000
140	- -	3 320 3 730	140	178	60	1.5	170	307 000	625 000	3 000
140	- -	3 320 3 730	140	178	60	1.5	170	409 000	923 000	1 100
145	-	1 100	145	165	35	1.1	159	116 000	340 000	3 000
150	RNA 4926 - -	2 360 3 540 3 970	150	180	50	1.5	172	215 000	540 000	2 500
			150	188	60	1.5	180	320 000	675 000	2 500
			150	188	60	1.5	180	423 000	989 000	1 000
155	-	1 170	155	175	35	1.1	169	120 000	363 000	2 500
160	RNA 4928	2 500	160	190	50	1.5	182	224 000	580 000	2 500
165	-	1 750	165	190	40	1.1	184	168 000	446 000	2 500
170	RNA 4930	4 090	170	210	60	2.0	201	324 000	712 000	2 500
175	-	1 850	175	200	40	1.1	194	173 000	474 000	2 500
180	RNA 4932	4 310	180	220	60	2.0	211	337 000	761 000	1 900
185	-	2 700	185	215	45	1.1	209	211 000	567 000	1 900
190	RNA 4934	4 530	190	230	60	2.0	221	347 000	810 000	1 900
195	-	2 840	195	225	45	1.1	219	218 000	602 000	1 900
205	RNA 4936	6 250	205	250	69	2.0	241	434 000	989 000	1 900
210	-	3 380	210	240	50	1.5	232	249 000	726 000	1 800
215	RNA 4938	6 500	215	260	69	2.0	251	440 000	1 020 000	1 700
220	-	3 520	220	250	50	1.5	242	255 000	766 000	1 600
225	RNA 4940	10 400	225	280	80	2.1	269	518 000	1 120 000	1 600
240	-	3 820	240	270	50	1.5	262	266 000	833 000	1 500
245	RNA 4944	11 200	245	300	80	2.1	289	536 000	1 200 000	1 400
265	- RNA 4948	5 670 12 000	265 265	300 320	60 80	2 2.1	291 309	345 000 565 000	1 150 000 1 320 000	1 300 1 300
285	-	6 070	285	320	60	2.0	311	354 000	1 220 000	1 100
290	RNA 4952	21 200	290	360	100	2.1	349	847 000	1 900 000	1 100
305	-	9 750	305	350	69	2.0	341	486 000	1 550 000	950
310	RNA 4956	22 500	310	380	100	2.1	369	877 000	2 040 000	950
330	-	13 200	330	380	80	2.1	369	610 000	1 900 000	900
340	RNA 4960	33 400	340	420	118	3.0	407	1 130 000	2 650 000	850
350	-	14 100	350	400	80	2.1	389	635 000	2 040 000	750
360	RNA 4964	35 200	360	440	118	3.0	427	1 170 000	2 830 000	750
370	-	14 800	370	420	80	2.1	409	651 000	2 140 000	700
380	RNA 4968	37 000	380	460	118	3.0	447	1 220 000	3 020 000	700
390	-	15 600	390	440	80	2.1	429	680 000	2 320 000	650
400	RNA 4972	38 700	400	480	118	3.0	467	1 260 000	3 200 000	600
415	-	27 900	415	480	100	2.1	469	951 000	2 860 000	600
430	RNA 4976	56 400	430	520	140	4.0	504	1 540 000	4 030 000	500
450	RNA 4980	58 800	450	540	140	4.0	524	1 590 000	4 270 000	500
470	RNA 4984	61 200	470	560	140	4.0	544	1 640 000	4 510 000	500
490	RNA 4988	86 900	490	600	160	4.0	584	1 910 000	5 140 000	400

: 30; 60; 90

Part Number
RNA4903

Part Number	Minimum order quantity	Volume Discount	Days to Ship	RoHS	I.D. d (Ø)	O.D. D (Ø)	Width B (mm)	Rotational Speed (rpm)	Basic Load Rating, Dynamic Rating (N)	Basic Load Rating, Static Rating (N)	Basic Load Rating, Dynamic Rating (Ca) (N)	Basic Load Rating, Static Rating (Coa) (N)
	1 Piece(s)	Available	13 Days or more	-	22	30	13	18000	11700	15600	-	-

Product TOP

Basic Information

Raceway Ring Shape	Needle Roller	Load Direction	Radial	Inner/Outer Ring Material	Steel
Outer Ring	With Outer Ring	Number of Raceway Ring Rows	Single Row	Size Standards	Metric System
Specifications	Standard / Abrasion Resistance / For high Speed	Rolling Element Material	Steel	Outer Ring Type	Semicircular Grooved
Format of Shaft Bearing	Holder Mounted	Shield Shape	No Inner Wheel

Please check the type/dimensions/specifications of the part RNA4903 in the Needle Roller Bearing - Without Inner Ring, Machined, RNA49 Series series.

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Specification/Dimensions

type
- RNA49
Clear
I.D. d(Ø)
5

6

7

8

10

12

14

16

20

22

25

28

30

32

35

40

42

45

48

50

52

55

58

63

65

68

72

80

85

90

95

100

105

110

115

125

135

150

160

170

180

205

215

225

290
Clear
O.D. D(Ø)
11

12

13

15

19

20

22

24

28

30

37

39

42

45

47

52

55

58

62

65

68

70

72

80

82

85

90

100

105

110

115

120

125

130

140

150

165

180

190

210

220

250

260

280

360
Clear
Width B(mm)
10

11

13

17

20

22

25

30

35

40

45

50

60

69

80

100
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

8 Days or Less

11 Days or Less

13 Days or Less

51 Days or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Products like this...

Part Number
RNA49/38
RNA49/42
RNA49/48
RNA4904
RNA4905
RNA4906

Minimum order quantity	Volume Discount	Days to Ship	RoHS	I.D. d (Ø)	O.D. D (Ø)	Width B (mm)	Rotational Speed (rpm)	Basic Load Rating, Dynamic Rating (N)	Basic Load Rating, Static Rating (N)	Basic Load Rating, Dynamic Rating (Ca) (N)	Basic Load Rating, Static Rating (Coa) (N)
1 Piece(s)	Available	11 Days or more	10	45	58	20	9000	33600	54600	-	-
1 Piece(s)	Available	13 Days or more	-	50	65	22	8000	42500	70300	-	-
1 Piece(s)	Available	11 Days or more	-	55	70	22	7500	44300	76300	-	-
1 Piece(s)	Available	13 Days or more	-	25	37	17	16000	21000	25000	-	-
1 Piece(s)	Available	13 Days or more	10	30	42	17	13000	23700	30700	-	-
1 Piece(s)	Available	13 Days or more	-	35	47	17	11000	25200	34700	-	-

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