SKF Needle Roller Bearing Rna Rna4902 Without Inner Ring

Model NO.: RNA4902
Certificate: ISO9001
Inner Diameter: 20 mm
Outer Diameter: 28 mm
Width: 13 mm
Mass Kg: 0.0217
Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Small (28-55mm)
Spherical: Non-Aligning Bearings
Separated: Separated
Trademark: SKF
Transport Package: Single Box
Specification: P0, P6, P5
Origin: Sweden
HS Code: 84824000
Model NO.: RNA4902
Certificate: ISO9001
Inner Diameter: 20 mm
Outer Diameter: 28 mm
Width: 13 mm
Mass Kg: 0.0217
Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Small (28-55mm)
Spherical: Non-Aligning Bearings
Separated: Separated
Trademark: SKF
Transport Package: Single Box
Specification: P0, P6, P5
Origin: Sweden
HS Code: 84824000
SKF Needle Roller Bearing RNA RNA4902 Without Inner Ring

1. Instruction of Needle Roller Bearings:

Needle roller bearings are roller bearings with cylindrical rollers that are small in diameter. In spite of their low cross section, needle roller bearings have a high load carrying capacity and are therefore extremely suitable for bearing arrangements where radial space is limited.

2. Needle roller bearings design include:
- Drawn Cup Needle Roller Bearings
- Solid Cup Needle Roller Bearings
- Cage and Needle Roller Assemblies
- Inner rings for Needle Roller Bearings
- Cam and Roller Followers
- Needle Rollers
- Needle Roller Thrust Bearings
- Combined Needle Roller Bearings
Model HK, TA, TLA, open-end drawn cup needle roller bearings with retainer,
Model BK close-end drawn cup needle roller bearing with retainer,
Model SCE, BA, J, JH, drawn cup needle roller bearings (Inch series). 
 

3. Application:

Automotive transmissions, air-conditioner compressors, bulldozer blades, 

overhead traveling cranes, gearboxes, machine tool spindles, copying machines and many more. 

4. General Drawings of some types of Needle Roller Bearings:

SKF Needle Roller Bearing Rna Rna4902 Without Inner Ring
SKF Needle Roller Bearing Rna Rna4902 Without Inner Ring


5. More Part Numbers of Needle Roller Bearings We Produce:


 

model

inner diameter

outer diameter

width

HJ101812

15.8750

28.5750

19.0500

HJ101816

15.8750

28.5750

25.4000

HJ122012

19.0500

31.7500

19.0500

HJ122016

19.0500

31.7500

25.4000

HJ142212

22.2250

34.9250

19.0500

HJ142216

22.2250

34.9250

25.4000

HJ162412

25.4000

38.1000

19.0500

HJ162416

25.4000

38.1000

25.4000

HJ182616

28.5750

41.2750

25.4000

HJ182620

28.5750

41.2750

31.7500

HJ202816

31.7500

44.4500

25.4000

HJ202820

31.7500

44.4500

31.7500

HJ223016

34.9750

47.6250

25.4000

HJ223020

34.9250

47.6250

31.7500

HJ243316

38.1000

52.3875

25.4000

HJ243320

38.1000

52.3875

31.7500

HJ263516

41.2750

55.5625

25.4000

HJ263520

41.2750

55.5625

31.7500

HJ283716

44.4500

58.7375

25.4000

HJ283720

44.4500

58.7375

31.7500

HJ303920

47.6250

61.9125

31.7500

HJ324116

50.8000

65.0875

25.4000

HJ324120

50.8000

65.0875

31.7500

HJ364824

57.1500

76.2000

38.1000

HJ364828

57.1500

76.2000

44.4500

HJ405224

63.5000

82.5500

38.1000

HJ405228

63.5000

82.5500

44.4500

HJ445616

69.8500

88.9000

25.4000

HJ445624

69.8500

88.9000

38.1000

HJ445628

69.8500

88.9000

44.4500

HJ486024

76.2000

95.2500

38.1000

HJ486028

76.2000

95.2500

44.4500

HJ526828

82.5500

 

44.4500

HJ567232

88.9000

 

50.8000

HJ607632

95.2500

 

50.8000

 

Shaft diameter Bearing Modle weight  Dimension Rated load   
Mass              
Shaft Bearing Designation Approximate value BoundaryDimensions BasicLoadRating Limiting Speed
Diameter     Approx d Fw D B      Oil
Dynamic Static
mm CurrentCode OriginalCode g mm N rpm
5 NA495   7 5   13 10 2670 2350 34000
NA495TN   7 5   13 10 2670 2350 34000
6 NA496   9 6   15 10 3150 3000 32000
7 NA497   12 7   17 10 3600 3650 30000
8 NKI8/16     8 14 25 16 12400 11300 21500
NA498   16 8   19 11 4300 3950 28000
9 NKI9/12   16.6 9 12 19 12 6200 7000 21700
NA499   17 9   20 11 4850 4900 26000
NKI9/16   21.9 9   19 16      
10 NKI10/16   27.3 10 14 22 16 9800 10500 19650
NA4900 4524900 21 10 14 22 13 8000 9000 23700
NA6900 6534900 38.4 10 14 22 22 9000 11000 23700
12 NA4901 4524901 25.1 12 16 24 13 9000 10800 20000
NKI12/20   39 12 16 24 20 14000 18400 21000
NA6901 6534901 44.5 12 16 24 22 6000 21600 20000
NKIS12   58 12 18 30 16 16000 17000 20000
NA12X32X15V     12   32 15      
15 NKI15/16   38 15 19 27 16 8800 12800 19100
NKI15/20   45.7 15 19 27 20 12300 19000 19100
NA4902 4924902 32 15 20 28 13 6400 9000 18000
NA6902 6534902 61.6 15 20 28 23 13100 20900 18000
NKIS15   90 15 22 35 20 23500 24000 17000
NA5902   52 15 20 28 18      
NAI53212     15   32 12      
74802 74802   15   36 25.4      
16 NKIS16     16   28 16 13000 17400 22000
NA16X36X24     16   36 24      
17 NKI17/16   41.1 17 21 29 16 13000 18200 20000
NA4903 4544903 32.8 17 22 30 13 7000 10000 17000
NA6903 6534903 68.2 17 22 30 23 14400 24900 17000
NA5903   56 17 22 30 18 15200 21700 18000
NA17     17   37 20      
20 NKI20/16   48.5 20 24 32 16 10800 17000 16700
NA4904 4524904 70.2 20 25 37 17 21000 25000 17000
NKIS20   119 20 28 42 20 28000 35500 15000
NA6904 6254904   20 25 37 30 36000 51000 17000
NA5904     20 25 37 23      
22 NKI22/16   50 22 26 34 16 15300 23600 17000
NA49/22   76 22 28 39 17 22000 29500 15000
NA69/22   130 22 28 39 30 37500 55000 15000
NA223934     22 28 39 34      
23 NA2020     23   42 22      
25 NKI25/30   115 25 29 38 30 31500 56000 14000
NA4905 4524905 76 25 30 42 17 23600 31500 14000
NA6905 6534905 138 25 30 42 30 29000 59000 14000
NKIS25   160 25 32 47 22 32000 55000 13000
  F-208277   25 32 47 22      
NKl25/20     25 29 38 20 21900 34000 15000
NA5905   139 25 30 42 23 30500 43000 13000
28 NA49/28 45449/28 98 28 32 45 17 24000 33500 14000
NA69/28   170 28 32 45 30 40500 63000 14000
NKI28/20     28 32 42 20 23000 37500 14000
30 NA4906 4544906 115 30 35 47 17 25000 35500 13000
NA5906 6534906 152 30 35 47 23      
NA6906     30 35 47 30 43500 71000 13000
NKI30/20     30 35 45 20 24000 42500 13000
NKI30/30     30 35 45 30 36500 69000 13000
32 NK132/20     32 37 47 20 24900 43900 12000
  TAFI324720   32 37 47 20 24900 43500 12000
NA49/32 45449/32 150 32 40 52 20 24900 43500 12000
NA69/32 66349/32 272 32 40 52 36 100000 100000 11000
35 NKI35/30   165 35 40 50 30 39000 79000 11000
NA4907 4524907 151 35 42 55 20 19800 41500 11000
NA6907 6534907 301 35 42 55 36 26000 60500 11000
NKIS35   220 35 43 58 22 33000 56000 9500
NA5907   256 35 42 55 27      
40 NKI40/20   124 40 45 55 20 22000 48000 10000
NKI40/30   184 40 45 55 30 35000 86000 10000
NA4908 4544908 240 40 48 62 22 42000 65000 8500
NA6908   401 40 48 62 40 64000 112000 8500
NA5908   348 40 48 62 30 53000 92500 8500
42 NKI42/20   138 40 Hinge Series

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