KOYO BEARING

IM 4903 KOYO NEEDLE ROLLER BEARINGS

KOYO duty needle roller bearing section. When metric series inner rings are to be used withdrawn- cup bearings, the suggested shaft tolerances are given in the “inner rings” discussion on page B-2-8 of the metric series drawn cup needle roller bearings section of this catalog.INCH SERIES INNER RINGSInch series inner rings for use with inch series drawn cup bearings aretabulated of this catalog. for inch series inner rings for use with inch series heavy-duty needle roller bearings.END WASHERS – METRIC SERIESWhen the metric series radial needle roller and cage assembly used in series NAO and RNAO needle roller bearings without flanges cannot be axially located by suitable shoulders or side faces, end washers of series SNSH may be used. These end washers,which are made of spring steel, are designed to be guided in the housing bore.

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KOYO Combined Needle Roller Bearings – Metric Nominal Dimensions.

Various part numbers in stock, welcome inquiry. Fast shipment within 2-3 working days.

Shaft

Dia.

d F(1) B rs min. Inner Ring

Designation

Approx.

Wt.

mm

in

mm

in

mm

in

mm

in

mm

in

  kg

lbs

15

0.5906

15

0.5906

20

0.7874

13

0.512

0.3

0.01

JR15x20x13 0.014

0.031

  15

0.5906

20

0.7874

14

0.551

0.3

0.01

JRZ15x20x14JS1 0.015

0.033

  15

0.5906

20

0.7874

16

0.630

0.3

0.01

JR15x20x16 0.017

0.037

  15

0.5906

20

0.7874

20

0.787

0.35

0.014

IM 15 20 20 P 0.021

0.045

  15

0.5906

20

0.7874

23

0.906

0.3

0.01

JR15x20x23 0.025

0.055

  15

0.5906

20

0.7874

26

1.024

0.3

0.01

JR15x20x26 0.028

0.062

17

0.6693

17

0.6693

20

0.7874

16.5

0.650

0.3

0.01

JR17x20x16,5 0.011

0.024

  17

0.6693

20

0.7874

20

0.787

0.3

0.01

JR17x20x20 0.014

0.031

  17

0.6693

20

0.7874

20.5

0.807

0.3

0.01

JR17x20x20,5 0.014

0.031

  17

0.6693

20

0.7874

30.5

1.201

0.3

0.01

JR17x20x30,5 0.021

0.046

  17

0.6693

21

0.8268

16

0.630

0.3

0.01

JR17x21x16 0.015

0.033

  17

0.6693

21

0.8268

20

0.787

0.3

0.01

JR17x21x20 0.019

0.042

  17

0.6693

22

0.8661

13

0.512

0.3

0.01

JR17x22x13 0.015

0.033

  17

0.6693

22

0.8661

13

0.512

0.35

0.014

IM 4903 0.015

0.033

  17

0.6693

22

0.8661

16

0.630

0.3

0.01

JR17x22x16 0.019

0.042

  17

0.6693

22

0.8661

16

0.630

0.3

0.01

JR17x22x16JS1 0.019

0.042

  17

0.6693

22

0.8661

16

0.630

0.3

0.01

JRZ17x22x16JS1 0.019

0.042

  17

0.6693

22

0.8661

20

0.787

0.35

0.014

IM 17 22 20 P 0.023

0.051

  17

0.6693

22

0.8661

23

0.906

0.3

0.01

JR17x22x23 0.028

0.062

  17

0.6693

22

0.8661

26

1.024

0.3

0.01

JR17x22x26 0.031

0.068

  17

0.6693

22

0.8661

32

1.260

0.3

0.01

JR17x22x32 0.038

0.084

20

0.7874

20

0.7874

24

0.9449

16

0.630

0.3

0.01

JR20x24x16 0.018

0.040

  20

0.7874

24

0.9449

20

0.787

0.3

0.01

JR20x24x20 0.022

0.049

  20

0.7874

25

0.9843

16

0.630

0.3

0.01

JR20x25x16 0.022

0.049

WHCD Bearing Co.,Ltd is professional bearing supplier, engaged in bearing business with more than eighteen years, export to worldwide countries, as America, European, Middle-East, Southeast Asia …etc. with plenty long-term cooperation customers. WHCD Bearing company will provide professional and prompt solution for customers.Original Quality and Warranted, and Bearing experts team support customer service. Various bearing types for customer choose:  

Bearing Types:
Self-aligning ball bearing
Cylindrical roller bearing
Spherical roller bearing
Tapered roller bearing
Angular contact ball
Needle roller
Deep groove ball bearing
Axial deep groove ball
Pillow block bearing and units
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