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Economy Idlers for Flat Belts-Straight Type/Crosspiece Groove Straight Type/Crowned Type/Width L110-500

Economy Idlers for Flat Belts-Straight Type/Crosspiece Groove Straight Type/Crowned Type/Width L110-500

MISUMI

MISUMI

· Product type: Idlers.
· Idlers type: Bearing Built-in.
· Shape of Idlers: Straight type, Crosspiece Groove Straight Type and Crowned Type.
· Shaft Type : Bearing on Each End (2-Bearing in Total)
· The product code series Straight type: RFWAS and RFWWS.
· The product code series Crosspiece Groove Straight: RFWAC and RFWWC.
· The product code series Crowned Type: RFWAM and RFWWM.
· Idlers Material: Aluminum Alloy
· Outer Diameter: 18-78. mm.
· Shaft (Bore) Diameter: 8-15 mm.
· Length: 110-510 mm.
· MC Nylon Flat Idler MCF

(i)Caution

  • [Specification Change] Internal bearing material will be changed to SUJ2 equivalent starting in July 2025. Please check here for part numbers with specification changes. Products before and after the change may be mixed in the same shipment, but there are no problems with use.
  • Please check the content on our website as the PDF does not contain the most up-to-date information.

PDFP.1-1366-2015

Part Number

Configured Part Number is shown.

StraightCrownedCrosspiece Groove StraightCrosspiece Groove Part[ ! ]X ≥ Y
* Bearing Accuracy: JIS B1514 Class 0
*1 Since the drawing surface of pipe is unpolished, the Inner Dia. d1 is misshapen to some extent.
[!] For Crosspiece Groove Part Dimensions, see "Pulley, Idler Relief Dimensions."
[!] The bearings are removable. Temporarily held with tape for shipping.
Type
[M] Material
[S] Surface Treatment
[M] Material
Straight
Crowned
Crosspiece Groove Straight
Bearing (Track Ring / Rolling Element)
RFWAS
RFWAC
RFWAM
Aluminum Alloy
—
SUJ2
RFWWS
RFWWC
RFWWM
Clear Anodize
RFWASS
RFWACS
RFWAMS
—
SUS440C Equivalent
RFWWSS
RFWWCS
RFWWMS
Clear Anodize
Track surface / roller material: SUJ2
*SUJ2 equivalent materials are used in some products. Please check here for part numbers subject to specification changes.

Specification Table

 Part Number—d—L—H—X—Y—Z
(Straight)RFWWS28—8—200        
(Crowned)RFWAC28—10—350—H0.5      
(Crosspiece Groove Straight)RFWWM58—20—250  —X14.0—Y11.8—Z5.0
■ Straight
Part Numberd1 mm
Increments		d1Bearing DimensionApplicable to Stainless Steel Bearing
(RFWASS / RFWASS)
TypeDLNo.D1B
RFWAS
RFWWS
RFWASS
RFWWSS		188110 to 51010678ZZ123.5○
28820608ZZ227○
106900ZZ226○
3815306002ZZ329○
206804ZZ327○
4815306202ZZ3511○
206904ZZ379○
25406905ZZ429○
306806ZZ427—
5820406204ZZ4714○
256005ZZ4712○
306906ZZ479○
40506808ZZ527—
7830606306ZZ7219—
356207ZZ7217—
■Crowned
Part Number
d
1 mm
Increments
H
d1
Bearing Dimension
Applicable to
Stainless Steel Bearing
(RFWACS / RFWWCS)
Type
D
L
Selection
No.
D1
B
RFWAC
RFWWCS
RFWACS
RFWWCS
18
8
110 to 510
0.3
10
678ZZ
12
3.5
○
28
8
 
20
608ZZ
22
7
○
10
0.5
6900ZZ
22
6
○
38
15
 
30
6002ZZ
32
9
○
20
0.8
6804ZZ
32
7
○
48
15
 
30
6202ZZ
35
11
○
20
 
6904ZZ
37
9
○
25
 
40
6905ZZ
42
9
○
30
 
6806ZZ
42
7
—
58
20
 
40
6204ZZ
47
14
○
25
 
6005ZZ
47
12
○
30
 
6906ZZ
47
9
○
40
 
50
6808ZZ
52
7
—
78
30
 
60
6306ZZ
72
19
—
35
 
6207ZZ
72
17
—
■Crosspiece Groove Straight
Part Numberd1 mm Increments0.1 mm Incrementsd1Bearing DimensionApplicable to
Stainless Steel Bearing
(RFWAMS / RFWWMS)
TypeDLXYZNo.D1B
RFWAM
RFWWM
RFWAMS
RFWWMS		3812110 to 5107.0 to 15.05.0 to 12.04.0 to 6.0206001ZZ288
○
156002ZZ329
○
4815306002ZZ329
○
206904ZZ379
○
256905ZZ429
○
5820406204ZZ4714
○
256905ZZ429
○
306906ZZ479
○
356807ZZ477
—
7830606306ZZ7219
—
356207ZZ7217
—
406008ZZ6815
—
Unspecified Dimension Tolerance
(Excluding d1)
Dimension RangeTolerance
(mm)
OverOr Less
0.53±0.1
36±0.1
630±0.2
30120±0.3
[!] Compliant with JIS B
0405 m (Medium Class).

 

d Hole Tolerance
d
(mm)		I.D.
Tolerance
(mm)
OverOr Less
0.62.5   0
－0.008
2.510   0
－0.008
1018   0
－0.008
1830   0
－0.010
[!] Compliant with JIS B
1514 Class 0.

 

General Standard for Shaft Fits (Approx.)
Radial Bearing (Class 0, 6X, 6)
ConditionBall BearingShaft
Tolerances
Shaft Dia. (mm)
Load CharacteristicsLoad Size, etc.OverOr Less
Inner Ring
Rotary Load

Non-directional Load
Non-directional Load		Light Load
Fluctuating Load		—18h5
18100js6
100200k6
Normal Load-18js5
18100k5
100140m5
Inner Ring
Static Load		Inner ring needs to move easily on shaftTotal Shaft Diameterg6
Inner ring does not need to move easily on shaftTotal Shaft Diameterh6
[!] Compliant with JIS B 1566 (2015) Annex B (Reference).
[!] Load Characteristics
·Inner Ring Rotary Load: The load position on the inner ring changes.
·Inner Ring Static Load: The load position on the inner ring does not change.
·Non-directional Load: Load position is uncertain.

Part Number 

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Part Number
RFWWC18-8-[110-500/10]-H[0.3,​0.5,​0.8]
RFWWC18-8-[110-510/1]-H[0.3,​0.5,​0.8]
RFWWC28-8-[110-500/10]-H[0.3,​0.5,​0.8]
RFWWC28-8-[110-510/1]-H[0.3,​0.5,​0.8]
RFWWC28-10-[110-500/10]-H[0.3,​0.5,​0.8]
RFWWC28-10-[110-510/1]-H[0.3,​0.5,​0.8]
RFWWC38-15-[110-500/10]-H[0.3,​0.5,​0.8]
RFWWC38-15-[110-510/1]-H[0.3,​0.5,​0.8]
RFWWC38-20-[110-500/10]-H[0.3,​0.5,​0.8]
RFWWC38-20-[110-510/1]-H[0.3,​0.5,​0.8]
RFWWC48-15-[110-500/10]-H[0.3,​0.5,​0.8]
RFWWC48-15-[110-510/1]-H[0.3,​0.5,​0.8]
RFWWC48-20-[110-500/10]-H[0.3,​0.5,​0.8]
RFWWC48-20-[110-510/1]-H[0.3,​0.5,​0.8]
RFWWC48-25-[110-500/10]-H[0.3,​0.5,​0.8]
RFWWC48-25-[110-510/1]-H[0.3,​0.5,​0.8]
RFWWC48-30-[110-500/10]-H[0.3,​0.5,​0.8]
RFWWC48-30-[110-510/1]-H[0.3,​0.5,​0.8]
RFWWC58-20-[110-500/10]-H[0.3,​0.5,​0.8]
RFWWC58-20-[110-510/1]-H[0.3,​0.5,​0.8]
RFWWC58-25-[110-500/10]-H[0.3,​0.5,​0.8]
RFWWC58-25-[110-510/1]-H[0.3,​0.5,​0.8]
RFWWC58-30-[110-500/10]-H[0.3,​0.5,​0.8]
RFWWC58-30-[110-510/1]-H[0.3,​0.5,​0.8]
RFWWC58-40-[110-500/10]-H[0.3,​0.5,​0.8]
RFWWC58-40-[110-510/1]-H[0.3,​0.5,​0.8]
RFWWC78-30-[110-500/10]-H[0.3,​0.5,​0.8]
RFWWC78-30-[110-510/1]-H[0.3,​0.5,​0.8]
RFWWC78-35-[110-500/10]-H[0.3,​0.5,​0.8]
RFWWC78-35-[110-510/1]-H[0.3,​0.5,​0.8]
RFWWM38-12-[110-500/10]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM38-12-[110-510/1]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM38-15-[110-500/10]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM38-15-[110-510/1]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM48-15-[110-500/10]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM48-15-[110-510/1]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM48-20-[110-500/10]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM48-20-[110-510/1]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM48-25-[110-500/10]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM48-25-[110-510/1]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM58-20-[110-500/10]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM58-20-[110-510/1]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM58-25-[110-500/10]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM58-25-[110-510/1]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM58-30-[110-500/10]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM58-30-[110-510/1]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM58-35-[110-500/10]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM58-35-[110-510/1]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM78-30-[110-500/10]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM78-30-[110-510/1]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM78-35-[110-500/10]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM78-35-[110-510/1]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM78-40-[110-500/10]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWM78-40-[110-510/1]-X[7-15/0.1]-Y[5-12/0.1]-Z[4-6/0.1]
RFWWS18-8-[110-500/10]
RFWWS18-8-[110-510/1]
RFWWS28-8-[110-500/10]
RFWWS28-8-[110-510/1]
RFWWS28-10-[110-500/10]
RFWWS28-10-[110-510/1]
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSShape Outer Dia. D
(Ø) 		Shaft (Bore) Dia. d
(mm) 		Surface Treatment H L
(mm) 		X
(mm) 		Y
(mm) 		Z
(mm)

-

1 Piece(s) 9 Day(s) 10Crowned188Clear Anodize0.3 ～ 0.8110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Crowned188Clear Anodize0.3 ～ 0.8110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Crowned288Clear Anodize0.3 ～ 0.8110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Crowned288Clear Anodize0.3 ～ 0.8110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Crowned2810Clear Anodize0.3 ～ 0.8110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Crowned2810Clear Anodize0.3 ～ 0.8110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Crowned3815Clear Anodize0.3 ～ 0.8110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Crowned3815Clear Anodize0.3 ～ 0.8110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Crowned3820Clear Anodize0.3 ～ 0.8110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Crowned3820Clear Anodize0.3 ～ 0.8110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Crowned4815Clear Anodize0.3 ～ 0.8110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Crowned4815Clear Anodize0.3 ～ 0.8110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Crowned4820Clear Anodize0.3 ～ 0.8110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Crowned4820Clear Anodize0.3 ～ 0.8110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Crowned4825Clear Anodize0.3 ～ 0.8110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Crowned4825Clear Anodize0.3 ～ 0.8110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Crowned4830Clear Anodize0.3 ～ 0.8110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Crowned4830Clear Anodize0.3 ～ 0.8110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Crowned5820Clear Anodize0.3 ～ 0.8110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Crowned5820Clear Anodize0.3 ～ 0.8110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Crowned5825Clear Anodize0.3 ～ 0.8110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Crowned5825Clear Anodize0.3 ～ 0.8110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Crowned5830Clear Anodize0.3 ～ 0.8110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Crowned5830Clear Anodize0.3 ～ 0.8110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Crowned5840Clear Anodize0.3 ～ 0.8110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Crowned5840Clear Anodize0.3 ～ 0.8110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Crowned7830Clear Anodize0.3 ～ 0.8110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Crowned7830Clear Anodize0.3 ～ 0.8110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Crowned7835Clear Anodize0.3 ～ 0.8110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Crowned7835Clear Anodize0.3 ～ 0.8110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove3812Clear Anodize-110 ～ 5007 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove3812Clear Anodize-110 ～ 5107 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove3815Clear Anodize-110 ～ 5007 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove3815Clear Anodize-110 ～ 5107 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove4815Clear Anodize-110 ～ 5007 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove4815Clear Anodize-110 ～ 5107 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove4820Clear Anodize-110 ～ 5007 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove4820Clear Anodize-110 ～ 5107 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove4825Clear Anodize-110 ～ 5007 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove4825Clear Anodize-110 ～ 5107 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove5820Clear Anodize-110 ～ 5007 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove5820Clear Anodize-110 ～ 5107 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove5825Clear Anodize-110 ～ 5007 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove5825Clear Anodize-110 ～ 5107 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove5830Clear Anodize-110 ～ 5007 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove5830Clear Anodize-110 ～ 5107 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove5835Clear Anodize-110 ～ 5007 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove5835Clear Anodize-110 ～ 5107 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove7830Clear Anodize-110 ～ 5007 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove7830Clear Anodize-110 ～ 5107 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove7835Clear Anodize-110 ～ 5007 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove7835Clear Anodize-110 ～ 5107 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove7840Clear Anodize-110 ～ 5007 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Crosspiece Groove7840Clear Anodize-110 ～ 5107 ～ 155 ～ 124 ～ 6

-

1 Piece(s) 9 Day(s) 10Straight188Clear Anodize-110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Straight188Clear Anodize-110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Straight288Clear Anodize-110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Straight288Clear Anodize-110 ～ 510---

-

1 Piece(s) 9 Day(s) 10Straight2810Clear Anodize-110 ～ 500---

-

1 Piece(s) 9 Day(s) 10Straight2810Clear Anodize-110 ～ 510---

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Basic Information

With or w/o Flange No Flange Length L(mm) ~300 / ~500 Type Idlers (Bearing Built-in)
Material Aluminum Alloy Shaft Type 1-Bearing on Each End (2-Bearing in Total) Surface Urethane Urethane Not Provided
Bearing Material SUJ2

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Specification/Dimensions

  • Shape

    • Straight
    • Crowned
    • Crosspiece Groove

    Clear

  • Outer Dia. D(Ø)

    • 18
    • 28
    • 38
    • 48
    • 58
    • 78

    Clear

  • Shaft (Bore) Dia. d(mm)

    • 8
    • 10
    • 12
    • 15
    • 20
    • 25
    • 30
    • 35
    • 40

    Clear

  • H

    • 0.3
    • 0.5
    • 0.8

    Clear

  • L(mm)

     [110-500/10mm Unit(s)][110-510/1mm Unit(s)]

    Clear

  • X(mm)

     [7-15/0.1mm Unit(s)]

    Clear

  • Y(mm)

     [5-12/0.1mm Unit(s)]

    Clear

  • Z(mm)

     [4-6/0.1mm Unit(s)]

    Clear

  • type

    • RFWAC
    • RFWAM
    • RFWAS
    • RFWWC
    • RFWWM
    • RFWWS

    Clear

  • Surface Treatment

    • Not Provided
    • Clear Anodize

    Clear

  • CAD

    • 2D
    • 3D

    Clear

Days to Ship

    • All
    • 9 Day(s) or Less

    Clear

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