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Inner Ring (Part Numbers)

Inner Ring

Optimal for use with shafts that cannot be surface hardened or finished,
although shafts are often used directly as raceway surfaces without a needle roller bearing inner ring.

PDF

Japanese Only

Part Number

Configured Part Number is shown.

Drawing

Inner ring drawing

Product features details

Needle-shaped roller bearings often use the shaft directly as the raceway surface without using the inner ring, but when using a shaft that cannot be surface-hardened or ground, it is better to use the inner ring described here.
The inner ring is made of high carbon chrome bearing steel and is heat-treated and then ground.
It is desirable to use a wide inner ring when the axia ltravel length of the shaft with respect to the housing is large and when a seal is used on the outside of the bearing.

 

Normally, needle-shaped roller bearings use the shaft as the raceway surface without using the inner ring, but if the surface of the shaft cannot be processed to the specified hardness and roughness, the inner ring is used. High carbon chrome bearing steel is used, and after heat treatment, a high-precision grinding finish is applied.

  • It can also be used as a bushing.
  • There are metric and inch systems.
  • There is also a type with a lubrication hole in the center of the raceway surface.

Selection support information

Order example

Inner ring order example

The nominal number consists of a formal notation, a dimension symbol [inner diameter (d) × track diameter (F) × width (B)], and a suffix.

Part Number
IR55X65X30
IR55X65X60
IR60X68X25
IR60X68X35
IR60X68X45
IR60X70X25
IR60X70X30
IR60X70X60
IR65X72X25
IR65X72X45
IR65X75X28
IR65X75X30
IR65X75X60
IR70X80X25
IR70X80X35
IR70X80X54
IR70X80X60
IR75X85X30
IR75X85X35
IR75X85X54
IR80X90X25
IR80X90X30
IR80X90X35
IR80X90X54
IR85X95X26
IR85X95X30
IR85X95X36
IR85X100X35
IR85X100X63
IR90X100X26
IR90X100X30
IR90X100X36
IR90X105X35
IR95X105X26
IR95X105X36
IR95X110X35
IR95X110X46
IR95X110X63
IR100X110X30
IR100X110X40
IR100X115X32
IR100X115X40
IR100X115X54
IR110X125X40
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSI.D.
(㎜)
O.D.
(㎜)
Width
(㎜)
With Oil Hole

MYR 66.81

1 Piece(s) 7 Day(s) or more -556530No

MYR 121.71

1 Piece(s) 7 Day(s) or more -556560No

MYR 66.67

1 Piece(s) 7 Day(s) or more -606825-

MYR 78.05

1 Piece(s) 7 Day(s) or more -606835-

MYR 103.13

1 Piece(s) 4 Day(s) or more -606845No

MYR 61.28

1 Piece(s) 8 Day(s) or more -607025-

MYR 78.05

1 Piece(s) 7 Day(s) or more -607030-

MYR 142.97

1 Piece(s) 7 Day(s) or more -607060-

MYR 73.76

1 Piece(s) 7 Day(s) or more -657225-

MYR 116.64

1 Piece(s) 7 Day(s) or more -657245-

MYR 78.05

1 Piece(s) 7 Day(s) or more 10657528-

MYR 79.17

1 Piece(s) 7 Day(s) or more -657530No

MYR 148.04

1 Piece(s) 7 Day(s) or more -657560-

MYR 84.23

1 Piece(s) 7 Day(s) or more -708025-

MYR 94.91

1 Piece(s) 7 Day(s) or more -708035No

MYR 148.04

1 Piece(s) 7 Day(s) or more -708054-

MYR 161.88

1 Piece(s) 7 Day(s) or more -708060-

MYR 112.25

1 Piece(s) 7 Day(s) or more -758530-

MYR 116.64

1 Piece(s) 7 Day(s) or more -758535-

MYR 170.32

1 Piece(s) 7 Day(s) or more -758554-

MYR 103.13

1 Piece(s) 7 Day(s) or more 10809025-

MYR 130.48

1 Piece(s) 7 Day(s) or more -809030-

MYR 138.51

1 Piece(s) 8 Day(s) or more -809035-

MYR 196.99

1 Piece(s) 7 Day(s) or more -809054No

MYR 130.14

1 Piece(s) 7 Day(s) or more -859526-

MYR 143.31

1 Piece(s) 7 Day(s) or more -859530-

MYR 161.88

1 Piece(s) 7 Day(s) or more -859536-

MYR 152.09

1 Piece(s) 7 Day(s) or more -8510035-

MYR 219.28

1 Piece(s) 7 Day(s) or more -8510063-

MYR 161.54

1 Piece(s) 7 Day(s) or more -9010026-

MYR 186.52

1 Piece(s) 7 Day(s) or more -9010030-

MYR 203.74

1 Piece(s) 7 Day(s) or more -9010036-

MYR 166.27

1 Piece(s) 7 Day(s) or more -9010535-

MYR 170.32

1 Piece(s) 7 Day(s) or more -9510526-

MYR 220.28

1 Piece(s) 7 Day(s) or more -9510536-

MYR 187.88

1 Piece(s) 7 Day(s) or more -9511035-

MYR 246.28

1 Piece(s) 7 Day(s) or more 109511046-

MYR 277.68

1 Piece(s) 7 Day(s) or more -9511063No

MYR 200.36

1 Piece(s) 7 Day(s) or more -10011030-

MYR 210.50

1 Piece(s) 7 Day(s) or more -10011040-

MYR 206.11

1 Piece(s) 7 Day(s) or more 1010011532-

MYR 223.67

1 Piece(s) 7 Day(s) or more -10011540-

MYR 298.95

1 Piece(s) 7 Day(s) or more 1010011554-

MYR 267.90

1 Piece(s) 7 Day(s) or more 1011012540-

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