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Part number has not been determine

(197 Part Numbers Available)
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Part Number Complete

NA4900R
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Specification/Dimensions

  • Inner Dia. d(Ø)

    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 12
    • 14
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    • 19
    • 20
    • 21
    • 22
    • 24
    • 25
    • 26
    • 28
    • 29
    • 30
    • 32
    • 34.925(1 3/8)
    • 35
    • 37
    • 38
    • 40
    • 42
    • 43
    • 45
    • 47
    • 48
    • 50
    • 52
    • 55
    • 58
    • 60
    • 63
    • 65
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    • 70
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    • 73
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    • 135
    • 145
    • 150
    • 155
    • 160
    • 165
    • 195
    • 205
    • 245
    • 265
    • 285
    • 290
    • 330

    Clear

  • Outer Dia. D(Ø)

    • 10
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 19
    • 20
    • 22
    • 23
    • 24
    • 25
    • 26
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    • 28
    • 29
    • 30
    • 32
    • 34
    • 37
    • 38
    • 39
    • 40
    • 42
    • 45
    • 47
    • 47.625(1 7/8)
    • 48
    • 50
    • 52
    • 53
    • 55
    • 57
    • 58
    • 62
    • 68
    • 72
    • 78
    • 80
    • 82
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    • 90
    • 92
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    • 100
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    • 115
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    • 125
    • 130
    • 140
    • 150
    • 165
    • 175
    • 180
    • 190
    • 225
    • 250
    • 300
    • 320
    • 360
    • 380

    Clear

  • Width B(mm)

    • 8
    • 10
    • 11
    • 12
    • 13
    • 16
    • 17
    • 18
    • 20
    • 22
    • 23
    • 25
    • 25.40(1)
    • 26
    • 27
    • 30
    • 32
    • 34
    • 35
    • 36
    • 40
    • 45
    • 46
    • 50
    • 54
    • 60
    • 63
    • 67
    • 69
    • 80
    • 100

    Clear

  • Precision (JIS)

    • Grade 0
    • Grade 4

    Clear

  • Number of Raceway Ring Rows

    • Single Row
    • Double Row

    Clear

  • Size Standards

    • Metric System
    • Inch Base

    Clear

  • Retainer Type

    • Resin Forming

    Clear

  • Sealing Structure

    • Brim Type
    • Double-sided Seal Type
    • Double-sided seal type
    • One-sided Seal Type

    Clear

  • Lubricant

    • 3AS: Albania
    • 3AS: Alvania
    • LP03: Heat-hardening grease

    Clear

  • Internal Clearance Symbol

    • CN (Normal Clearance)

    Clear

  • Specifications

    • Clearance adjusting shape

    Clear

  • Revolution Frequency(rpm)

    • 800
    • 950
    • 1000
    • 1100
    • 1300
    • 1400
    • 1600
    • 1700
    • 1800
    • 1900
    • 2000
    • 2100
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    • 2400
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    • 4700
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    • 6500
    • 7000
    • 7500
    • 8500
    • 9000
    • 9500
    • 10000
    • 11000
    • 12000
    • 13000
    • 14000
    • 15000
    • 16000
    • 17000
    • 18000
    • 19000
    • 20000
    • 21000
    • 23000
    • 25000
    • 27000

    Clear

  • Series

    • No Inner Wheel
    • No Inner Wheel/Separated Type
    • With Inner Wheel

    Clear

  • type

    • 8Q
    • MR
    • NA
    • NK
    • NKS
    • RNA
    • RNAO

    Clear

  • CAD

    • 2D
    • 3D

    Clear

Days to Ship

    • All
    • Same day
    • 5 Day(s) or Less
    • 6 Day(s) or Less
    • 7 Day(s) or Less
    • 8 Day(s) or Less
    • 9 Day(s) or Less
    • 11 Day(s) or Less
    • 12 Day(s) or Less
    • 13 Day(s) or Less
    • 17 Day(s) or Less

    Clear

Specify Alterations

Solid Type Needle Roller Bearing

Solid Type Needle Roller Bearing
You can add up to 6 items per a category to the compare list.

Brand :

NTN

NTN

Part Number :
197 Part Numbers Available

NA4900R

NK5/10T2

NK5/12T2

NK6/10T2

NK6/12T2

NK7/10T2

NK7/12T2

NK8/12T2

NK8/16

NK9/12T2

NK9/16T2

NK10/12T2

NK10/16

NK12/12

NK12/16

NK14/16R

NK14/20R

NK15/16R

NK15/20R

NK16/16R

NA4900R
NA4900R

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  • The product images are representative only. Specifications may differ for each part number, including shape and color.
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Product DetailProduct Detail

Product Description

A solid needle roller bearing.
[Features]
·The solid (machined) outer race enables high rigidity.
·The bearing accuracy can also be increased, making it ideal for applications that require high speed, high load, and high rotational accuracy.
·In addition to the type with inner race, the type without inner race is also available in which the shaft can be used directly as a raceway instead of inner race.
[Application]
・ Heavy load, high speed, gearbox for automobiles, etc.
・ Steel equipment, mining / construction machinery, machine tools.

Product Specifications

TypeCompatible shaft diameter (mm) Note
RNA49 type⌀7 to ⌀12Since the suffix T2 uses a polyamide resin molding retainer, the allowable temperature should be 120°C, and 100°C or less for continuous use.
The dimension series is in accordance with JIS B 1512 or ISO 15.
RNA49··R type
RNA49··L type
RNA49··LL type		RNA49··R type
⌀14 to ⌀490
With seal
RNA49··L type
RNA49··LL type
⌀14 to ⌀58		The seal type (suffix code: L or LL) that has a built-in synthetic rubber seal on one or both sides is filled with lithium soap-based grease.
For the seal type, the operating temperature should be -20 to 120°C, or below 100°C for continuous run, in order to prevent deterioration of the seal and grease.
The dimension series is in accordance with JIS B 1512 or ISO 15.
RNA59 type ⌀20 to ⌀160The dimension series is in accordance with JIS B 1512 or ISO 15.
NA59 type⌀15 to ⌀140
NK type
NKS type		NK
⌀5 to ⌀12 		The suffix code T2 indicates that a polyamide resin molded retainer is used and the allowable temperature is 120°C.
For continuous run, maintain 100°C or below.
NKS
⌀8 to ⌀40
NKS type⌀43 to ⌀110

Product features details

The solid needle roller bearing is ideal for applications that require high speed, high load, and high rotational accuracy.

Solid needle roller bearing, detailed product features

RNA49 type

Solid needle roller bearing, detailed product features

RNA49··R type
RNA49··L type
RNA49··LL type

Solid needle roller bearing, detailed product features

RNA59 type

Solid needle roller bearing, detailed product features

NA59 type

Solid needle roller bearing, detailed product features

NK type
NKS type

Solid needle roller bearing, detailed product features

NKS type

Features of solid needle roller bearings

The dimensional accuracy, shape accuracy and rotational accuracy of solid needle roller bearings are specified in JIS B 1514 (Accuracy of Roller Bearings).
Products with precision class JIS0 are manufactured as standard, however, products with class JIS6, 5, and 4 are also available for applications that require higher rotational accuracy.
The dimensional tolerance of the roller inscribed circle diameter (Fw) of the no-inner race NK, RNA, NKS, and MR types falls within the ISO tolerance class F6. For reference when selecting the shaft diameter dimensions and radial clearance.

 

The solid needle roller bearing has the structure in which the needle rollers and retainer are assembled to the solid (machined) outer race, and the outer race and needle rollers are kept together by the flange or side walls on both sides of the outer race. The solid (machined) outer race ensures
high rigidity and can increase the bearing accuracy, therefore, it is ideal for applications that require high speed, high load, and high rotational accuracy.
In addition to the type with inner race, the type without inner race is also available in which the shaft can be used directly as a raceway instead of inner race.

 

The allowable rotational speed is the rotational speed that is allowed to achieve under the following conditions. For the allowable rotational speed under usage conditions that are different from the following, please refer to the "Precision Roller Bearing Catalog" or contact the manufacturer.
·Use under conditions where an appropriate amount of grease recommended by NTN is sealed, a sufficient break-in operation is performed, and generated heat is eliminated by such as cooling the outer housing.
・ Use with constant pressure preload.

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Part Number
NA4900R
NK5/10T2
NK5/12T2
NK6/10T2
NK6/12T2
NK7/10T2
NK7/12T2
NK8/12T2
NK8/16
NK9/12T2
NK9/16T2
NK10/12T2
NK10/16
NK12/12
NK12/16
NK14/16R
NK14/20R
NK15/16R
NK15/20R
NK16/16R
NK16/20R
NK17/16R
NK17/20R
NK18/16R
NK19/16R
NK19/20R
NK20/20R
NK21/16R
NK21/20R
NK22/16R
NK22/20R
NK22/20R/LP03
NK24/16R
NK24/20R
NK26/16R
NK26/20R
NK28/20R
NK29/20R
NK29/30R
NK30/20R
NK30/30R
NK32/30R
NK35/20R
NK35/30R
NK37/20R
NK37/30R
NK38/20
NK38/20R
NK38/30R
NK40/20R
NK40/30R
NK42/20R
NK42/30R
NK43/20R
NK43/30R
NK45/20R
NK45/30RCT
NK47/20RCT
NK47/30R
NK50/25R
Part NumberPriceMinimum Order Qty.Volume DiscountDays to ShipRoHSInner Dia. d
(Ø) 		Outer Dia. D
(Ø) 		Width B
(mm) 		Precision (JIS) Number of Raceway Ring Rows Size Standards Retainer Type Basic Load Rating: Dynamic Load
(N) 		Sealing Structure Lubricant Internal Clearance Symbol Specifications Revolution Frequency
(rpm) 		Series

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₹ 699.31

1 Piece(s) 5 Day(s) or more -101712Grade 0Single RowMetric SystemResin Forming4550----19000No Inner Wheel

₹ 750.76

1 Piece(s) 5 Day(s) or more -101716Grade 0Single RowMetric System-5450----19000No Inner Wheel

₹ 750.02

1 Piece(s) 5 Day(s) or more -121912Grade 0Single RowMetric System-5000----17000No Inner Wheel

₹ 790.60

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₹ 967.40

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1 Piece(s) 5 Day(s) or more -162416Grade 0Single RowMetric System-12200Brim Type---15000No Inner Wheel

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1 Piece(s) Same day -162420Grade 0Single RowMetric System-14600Brim Type---15000No Inner Wheel

₹ 901.76

1 Piece(s) 5 Day(s) or more -172516Grade 0Single RowMetric System-12100Brim Type---15000No Inner Wheel

₹ 1,029.00

1 Piece(s) 5 Day(s) or more -172520Grade 0Single RowMetric System-15400Brim Type---15000No Inner Wheel

₹ 891.05

1 Piece(s) 8 Day(s) or more -182616Grade 0Single RowMetric System-12700Brim Type---14000No Inner Wheel

₹ 749.02

1 Piece(s) 5 Day(s) -192716Grade 0Single RowMetric System-13300Brim Type---14000No Inner Wheel

₹ 820.43

1 Piece(s) 5 Day(s) -192720Grade 0Single RowMetric System-16000Brim Type---14000No Inner Wheel

₹ 1,051.85

1 Piece(s) 5 Day(s) or more -202820Grade 0Single RowMetric System-16700Brim Type---13000No Inner Wheel

₹ 1,000.04

1 Piece(s) 5 Day(s) or more -212916Grade 0Single RowMetric System-13700Brim Type---13000No Inner Wheel

₹ 1,093.11

1 Piece(s) 5 Day(s) or more -212920Grade 0Single RowMetric System-17400Brim Type---13000No Inner Wheel

₹ 1,049.96

1 Piece(s) 5 Day(s) or more -223016Grade 0Single RowMetric System-14200Brim Type---12000No Inner Wheel

₹ 1,136.04

1 Piece(s) 5 Day(s) or more -223020Grade 0Single RowMetric System-18000Brim Type---12000No Inner Wheel

₹ 1,480.38

1 Piece(s) 8 Day(s) or more 10223020Grade 0Single RowMetric System-18000Brim TypeLP03: Heat-hardening grease--12000No Inner Wheel

₹ 1,050.71

1 Piece(s) 5 Day(s) or more -243216Grade 0Single RowMetric System-15200Brim Type---11000No Inner Wheel

₹ 1,198.40

1 Piece(s) 5 Day(s) or more -243220Grade 0Single RowMetric System-18600Brim Type---11000No Inner Wheel

₹ 1,156.33

1 Piece(s) 5 Day(s) or more -263416Grade 0Single RowMetric System-15600Brim Type---10000No Inner Wheel

₹ 1,249.09

1 Piece(s) 5 Day(s) or more -263420Grade 0Single RowMetric System-19100Brim Type---10000No Inner Wheel

₹ 1,252.51

1 Piece(s) 5 Day(s) or more -283720Grade 0Single RowMetric System-22300Brim Type---9500No Inner Wheel

₹ 1,307.42

1 Piece(s) 5 Day(s) or more -293820Grade 0Single RowMetric System-22200Brim Type---9500No Inner Wheel

₹ 1,504.95

1 Piece(s) 5 Day(s) or more -293830Grade 0Single RowMetric System-27500Brim Type---9500No Inner Wheel

₹ 1,312.55

1 Piece(s) 5 Day(s) or more -304020Grade 0Single RowMetric System-22100Brim Type---8500No Inner Wheel

₹ 1,547.95

1 Piece(s) 5 Day(s) or more -304030Grade 0Single RowMetric System-33000Brim Type---8500No Inner Wheel

₹ 1,542.00

1 Piece(s) 8 Day(s) or more -324230Grade 0Single RowMetric System-34000Brim Type---8500No Inner Wheel

₹ 1,411.18

1 Piece(s) 5 Day(s) or more -354520Grade 0Single RowMetric System-24800Brim Type---7500No Inner Wheel

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1 Piece(s) 5 Day(s) or more -354530Grade 0Single RowMetric System-36000Brim Type---7500No Inner Wheel

₹ 1,440.98

1 Piece(s) 5 Day(s) or more -374720Grade 0Single RowMetric System-25300Brim Type---7500No Inner Wheel

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1 Piece(s) 8 Day(s) or more -374730Grade 0Single RowMetric System-36500Brim Type---7500No Inner Wheel

₹ 1,492.44

1 Piece(s) 8 Day(s) or more 10384820Grade 0Single RowMetric System-25900----7500No Inner Wheel

₹ 1,503.15

1 Piece(s) 5 Day(s) or more -384820Grade 0Single RowMetric System-25900Brim Type---7500No Inner Wheel

₹ 1,762.18

1 Piece(s) 8 Day(s) or more -384830Grade 0Single RowMetric System-37500Brim Type---7500No Inner Wheel

₹ 1,528.27

1 Piece(s) 5 Day(s) or more -405020Grade 0Single RowMetric System-26400Brim Type---6500No Inner Wheel

₹ 1,842.13

1 Piece(s) 8 Day(s) or more -405030Grade 0Single RowMetric System-38500Brim Type---6500No Inner Wheel

₹ 1,607.62

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Loading...

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Basic Information

Raceway Ring Shape Needle Roller Load Direction Radial Outer Ring With Outer Ring
Inner/Outer Ring Material Steel Specifications/Environment Standard Rolling Element Material Steel
Outer Ring Type Flat

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