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Idlers(Chain Type:RS)

An idler is a gear-shaped part that rotates as a chain moves. It is used in various machines, such as automobile engines, compressors, and power generators that transmit power using belts and chains. However, idlers themselves are idle gears that do not transmit power to gears or shafts. By using an idler, it is possible to maintain suitable transmission tension and stable movement. In addition, there are gear-shaped sprockets that transmit rotation, idler pins for fixing the idler with nuts and screws, tensioners for adjusting the slackness and friction of the chain, etc., and guide rollers for sliding doors. In particular, there are three types of sprockets: A type on a flat plate without a boss, B type with a boss on one side, and C type with a boss on both sides.
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  • You can add up to 6 items per a category to the compare list.
    Sale
    Idler VSB, B-Type Sprockets
    Until 31/03/2025

    Sale
    Until 31/03/2025

    Idler VSB, B-Type Sprockets

    NBK

    S25C to S35C, Induction hardened Tooth Tip
    From: ฿ 1,184.39
    Special Price
    Days to Ship: day to ship Same day
    day to ship Same day
  • You can add up to 6 items per a category to the compare list.
    Sale
    Standard Idler Sprocket, Single
    Until 31/03/2025

    Sale
    Until 31/03/2025

    Standard Idler Sprocket, Single

    KATAYAMA CHAIN

    Maintains appropriate tension in the transmission of the roller chain. As tooth tips are induction hardened, durability is excellent, and smooth and quiet rotation can be obtained.
    *The conventional type with retaining ring attached only to one side, and new type which is attached to both, may be used together without impact on usage. Please note this in advance.
    From: ฿ 431.52
    Special Price
    Days to Ship: day to ship Same day
    day to ship Same day
  • You can add up to 6 items per a category to the compare list.
    Sprocket Idler B-Type SPBW

    Sprocket Idler B-Type SPBW

    KONISHI

    [Features]·2-row chain sprocket idler. [Materials]·Steel S35C (sprocket). ·Bearing steel (bearing)
    From: ฿ 1,782.90
    Days to Ship: day to ship 3 Day(s)
    day to ship 3 Day(s)
  • You can add up to 6 items per a category to the compare list.
    Sale
    Idler (SIS), Steel Sprocket
    Until 31/03/2025
    Idler (SIS), Steel Sprocket
    Idler (SIS), Steel Sprocket

    Sale
    Until 31/03/2025

    Idler (SIS), Steel Sprocket

    IMAO CORPORATION

    [Features]·Press-fit ball bearing. [Materials]·Steel (Surface treatment: black oxide coating).
    From: ฿ 599.86
    Special Price
    Days to Ship: day to ship Same day
    day to ship Same day
  • You can add up to 6 items per a category to the compare list.
    Sale
    Idler, Chain Roller (RABJ)
    Until 31/03/2025

    Sale
    Until 31/03/2025

    Idler, Chain Roller (RABJ)

    IMAO CORPORATION

    [Features]
    · Can be used as a following roller to the chain.
    · Has ball bearings fixed with retaining rings.
    From: ฿ 804.72
    Special Price
    Days to Ship: day to ship Same day
    day to ship Same day
  • You can add up to 6 items per a category to the compare list.
    Sale
    Standard Idler Sprocket, Stainless Steel
    Until 31/03/2025

    Sale
    Until 31/03/2025

    Standard Idler Sprocket, Stainless Steel

    KATAYAMA CHAIN

    Maintains appropriate tension in the transmission of the roller chain. Stainless steel design for superior corrosion-resistance and durability. Smooth and quiet rotation can be obtained.

    [Features]
    · The KANA standard idler sprocket maintains proper tension in the transmission of the roller chain.
    · Induction-hardened sprocket tooth portion allows excellent durability and smooth and quiet rotation.
    From: ฿ 1,150.48
    Special Price
    Days to Ship: day to ship Same day
    day to ship Same day
  • You can add up to 6 items per a category to the compare list.
    Sale
    Idler (BIS), Engineering Plastic Sprocket
    Until 31/03/2025

    Sale
    Until 31/03/2025

    Idler (BIS), Engineering Plastic Sprocket

    IMAO CORPORATION

    [Features]·Insert-molded ball bearing. [Materials]·Polyamide.
    From: ฿ 509.00
    Special Price
    Days to Ship: day to ship Same day
    day to ship Same day
  • You can add up to 6 items per a category to the compare list.
    Sale
    Idler (SIS-SW), Steel Sprocket
    Until 31/03/2025

    Sale
    Until 31/03/2025

    Idler (SIS-SW), Steel Sprocket

    IMAO CORPORATION

    Double bearing specification steel sprocket idler fitting chains compatible to no. 35 to 80. Ball bearings are fixed with retaining rings.
    From: ฿ 1,122.11
    Special Price
    Days to Ship: day to ship Same day
    day to ship Same day
  • You can add up to 6 items per a category to the compare list.
    Double Idler Sprocket, B-Type

    Double Idler Sprocket, B-Type

    KATAYAMA CHAIN

    [Features]
    · KANA standard B-type W (double) idler sprockets maintain an appropriate tension in the roller chain transmission.
    · When using a B-type drive / driven sprocket, you can use the same B-type W idler for easier design.
    · Also, excellent load-bearing capacity product using 2 bearings.
    From: ฿ 561.63
    Days to Ship: day to ship 5 Day(s)
    day to ship 5 Day(s)
  • You can add up to 6 items per a category to the compare list.
    Sale
    Standard Idler Sprocket, Double
    Until 31/03/2025

    Sale
    Until 31/03/2025

    Standard Idler Sprocket, Double

    KATAYAMA CHAIN

    Maintains appropriate tension in the transmission of the roller chain. As tooth tips are induction hardened, durability is excellent, and smooth and quiet rotation can be obtained.

    [Features]
    · KANA standard W (double) idler sprockets maintain proper tension in roller chain transmission.
    · Induction-hardened sprocket tooth portion allows excellent durability and smooth and quiet rotation.
    · Bearings are located in the center of the sprocket.
    From: ฿ 518.85
    Special Price
    Days to Ship: day to ship Same day
    day to ship Same day
  • You can add up to 6 items per a category to the compare list.
    Idler Sprocket VSA, A Type

    Idler Sprocket VSA, A Type

    NBK

    S35C, Hardened tooth tip, black oxide coating.
    From: ฿ 721.05
    Days to Ship: day to ship 5 Day(s)
    day to ship 5 Day(s)
  • You can add up to 6 items per a category to the compare list.
    Sale
    Sprocket Idler SPB, Model A Type
    Until 31/03/2025

    Sale
    Until 31/03/2025

    Sprocket Idler SPB, Model A Type

    KONISHI

    This is a type A chain sprocket idler. Use this product as a chain tensioner.
    From: ฿ 792.58
    Special Price
    Days to Ship: day to ship Same day
    day to ship Same day
  • You can add up to 6 items per a category to the compare list.
    Idler (SIS-SUS), Steel Sprocket (Made of SUS)

    Idler (SIS-SUS), Steel Sprocket (Made of SUS)

    IMAO CORPORATION

    Excellent corrosion resistance SUS304 made sprocket idler.

    [Features]
    · Excellent corrosion resistance SUS304 used.
    · Press fit ball bearing.
    From: ฿ 1,548.45
    Days to Ship: day to ship 5 Day(s)
    day to ship 5 Day(s)
  • You can add up to 6 items per a category to the compare list.
    Sprocket Idler B-Type SPBS

    Sprocket Idler B-Type SPBS

    KONISHI

    [Materials]Sprocket: Steel material S35C, tooth tip induction hardened. Bearing: Bearing steel
    From: ฿ 939.91
    Days to Ship: day to ship 3 Day(s)
    day to ship 3 Day(s)
  • You can add up to 6 items per a category to the compare list.
    VSAG Sprocket Idler, A-Type

    VSAG Sprocket Idler, A-Type

    NBK

    ● Material/Finish
    · Body: S35C-equivalent, hardened teeth, black oxide coating (black)
    · Bearings: Steel, rubber seal
    From: ฿ 567.79
    Days to Ship: day to ship 8 Day(s)
    day to ship 8 Day(s)
  • You can add up to 6 items per a category to the compare list.
    Idler, Standard Engineering Plastic Idleless Sprocket

    Idler, Standard Engineering Plastic Idleless Sprocket

    KATAYAMA CHAIN

    [Features]
    · Maintains proper tension in the transmission of the roller chain.
    · General purpose engineering plastics and polyamide resin 6 nylon idler sprocket, that emphasizes light weight and low noise.
    · Operating temperature: -10°C to +80°C.
    From: ฿ 500.75
    Days to Ship: day to ship 10 Day(s)
    day to ship 10 Day(s)
  • You can add up to 6 items per a category to the compare list.
    Sale
    Idler (SIS-S), Steel Sprocket
    Until 31/03/2025

    Sale
    Until 31/03/2025

    Idler (SIS-S), Steel Sprocket

    IMAO CORPORATION

    [Features]Ball bearing is fixed with a retaining ring. [Material] Steel
    From: ฿ 969.44
    Special Price
    Days to Ship: day to ship Same day
    day to ship Same day
  • You can add up to 6 items per a category to the compare list.
    Sale
    Single-Idler (XIS-S), Steel Sprocket
    Until 31/03/2025

    Sale
    Until 31/03/2025

    Single-Idler (XIS-S), Steel Sprocket

    IMAO CORPORATION

    Steel sprocket idler fitting chains no. 25 to 80 DXB With needle bearing specification, bearing is press fitted.

    [Features]
    • DXB bearing used.
    • DXB press fit bearing.
    From: ฿ 1,197.67
    Special Price
    Days to Ship: day to ship Same day
    day to ship Same day
  • You can add up to 6 items per a category to the compare list.
    Idler (EIS-S), Engineering Plastic Sprocket

    Idler (EIS-S), Engineering Plastic Sprocket

    IMAO CORPORATION

    [Features]Ball bearing is fixed with a retaining ring. [Applicable Idler]·Shaft part number: PID1511 type.
    From: ฿ 949.68
    Days to Ship: day to ship 7 Day(s)
    day to ship 7 Day(s)
  • You can add up to 6 items per a category to the compare list.
    Sale
    Idler (SIS-UU), Steel Sprocket (Both Seal)
    Until 31/03/2025

    Sale
    Until 31/03/2025

    Idler (SIS-UU), Steel Sprocket (Both Seal)

    IMAO CORPORATION

    Contact seal type using bearings, and so can be used in dusty environments, such as with a woodworking machine.
    From: ฿ 740.19
    Special Price
    Days to Ship: day to ship Same day
    day to ship Same day
  • You can add up to 6 items per a category to the compare list.
    Sale
    Single-Idler (NIS-S), Steel Sprocket
    Until 31/03/2025

    Sale
    Until 31/03/2025

    Single-Idler (NIS-S), Steel Sprocket

    IMAO CORPORATION

    [Features]·Press-fit needle bearing. [Materials]·Steel (Surface treatment: black oxide coating).
    From: ฿ 1,193.76
    Special Price
    Days to Ship: day to ship Same day
    day to ship Same day
Brand
Product Series
CAD
From
Days to Ship
Sprocket Shape
Nominal Number
Number of Teeth(T)
Shaft Bore Dia. d(mm)
Material
Type
Number of Strands
Chain Type
Shaft Type
Surface Treatment
You can add up to 6 items per a category to the compare list.
Sale
Idler VSB, B-Type Sprockets
Until 31/03/2025
You can add up to 6 items per a category to the compare list.
Sale
Standard Idler Sprocket, Single
Until 31/03/2025
You can add up to 6 items per a category to the compare list.
Sprocket Idler B-Type SPBW
You can add up to 6 items per a category to the compare list.
Sale
Idler (SIS), Steel Sprocket
Until 31/03/2025
Idler (SIS), Steel Sprocket
Idler (SIS), Steel Sprocket
You can add up to 6 items per a category to the compare list.
Sale
Idler, Chain Roller (RABJ)
Until 31/03/2025
You can add up to 6 items per a category to the compare list.
Sale
Standard Idler Sprocket, Stainless Steel
Until 31/03/2025
You can add up to 6 items per a category to the compare list.
Sale
Idler (BIS), Engineering Plastic Sprocket
Until 31/03/2025
You can add up to 6 items per a category to the compare list.
Sale
Idler (SIS-SW), Steel Sprocket
Until 31/03/2025
You can add up to 6 items per a category to the compare list.
Double Idler Sprocket, B-Type
You can add up to 6 items per a category to the compare list.
Sale
Standard Idler Sprocket, Double
Until 31/03/2025
You can add up to 6 items per a category to the compare list.
Idler Sprocket VSA, A Type
You can add up to 6 items per a category to the compare list.
Sale
Sprocket Idler SPB, Model A Type
Until 31/03/2025
You can add up to 6 items per a category to the compare list.
Idler (SIS-SUS), Steel Sprocket (Made of SUS)
You can add up to 6 items per a category to the compare list.
Sprocket Idler B-Type SPBS
You can add up to 6 items per a category to the compare list.
VSAG Sprocket Idler, A-Type
You can add up to 6 items per a category to the compare list.
Idler, Standard Engineering Plastic Idleless Sprocket
You can add up to 6 items per a category to the compare list.
Sale
Idler (SIS-S), Steel Sprocket
Until 31/03/2025
You can add up to 6 items per a category to the compare list.
Sale
Single-Idler (XIS-S), Steel Sprocket
Until 31/03/2025
You can add up to 6 items per a category to the compare list.
Idler (EIS-S), Engineering Plastic Sprocket
You can add up to 6 items per a category to the compare list.
Sale
Idler (SIS-UU), Steel Sprocket (Both Seal)
Until 31/03/2025
You can add up to 6 items per a category to the compare list.
Sale
Single-Idler (NIS-S), Steel Sprocket
Until 31/03/2025
Brand

NBK

KATAYAMA CHAIN

KONISHI

IMAO CORPORATION

IMAO CORPORATION

KATAYAMA CHAIN

IMAO CORPORATION

IMAO CORPORATION

KATAYAMA CHAIN

KATAYAMA CHAIN

NBK

KONISHI

IMAO CORPORATION

KONISHI

NBK

KATAYAMA CHAIN

IMAO CORPORATION

IMAO CORPORATION

IMAO CORPORATION

IMAO CORPORATION

IMAO CORPORATION

Product Series

Idler VSB, B-Type Sprockets

Standard Idler Sprocket, Single

Sprocket Idler B-Type SPBW

Idler (SIS), Steel Sprocket

Idler, Chain Roller (RABJ)

Standard Idler Sprocket, Stainless Steel

Idler (BIS), Engineering Plastic Sprocket

Idler (SIS-SW), Steel Sprocket

Double Idler Sprocket, B-Type

Standard Idler Sprocket, Double

Idler Sprocket VSA, A Type

Sprocket Idler SPB, Model A Type

Idler (SIS-SUS), Steel Sprocket (Made of SUS)

Sprocket Idler B-Type SPBS

VSAG Sprocket Idler, A-Type

Idler, Standard Engineering Plastic Idleless Sprocket

Idler (SIS-S), Steel Sprocket

Single-Idler (XIS-S), Steel Sprocket

Idler (EIS-S), Engineering Plastic Sprocket

Idler (SIS-UU), Steel Sprocket (Both Seal)

Single-Idler (NIS-S), Steel Sprocket

CAD
  • 2D / 3D
  • 2D / 3D
  • 2D
  • 2D / 3D
  • 2D / 3D
  • 2D / 3D
  • 2D / 3D
  • 2D / 3D
  • 2D / 3D
  • 2D / 3D
  • 2D / 3D
  • 2D
  • 2D / 3D
  • 2D
  • 2D / 3D
  • 2D / 3D
  • 2D / 3D
  • 2D / 3D
  • 2D / 3D
  • 2D / 3D
From

฿ 1,184.39

Special Price

On Sale Until 31/03/2025

฿ 431.52

Special Price

On Sale Until 31/03/2025

฿ 1,782.90

฿ 599.86

Special Price

On Sale Until 31/03/2025

฿ 804.72

Special Price

On Sale Until 31/03/2025

฿ 1,150.48

Special Price

On Sale Until 31/03/2025

฿ 509.00

Special Price

On Sale Until 31/03/2025

฿ 1,122.11

Special Price

On Sale Until 31/03/2025

฿ 561.63

฿ 518.85

Special Price

On Sale Until 31/03/2025

฿ 721.05

฿ 792.58

Special Price

On Sale Until 31/03/2025

฿ 1,548.45

฿ 939.91

฿ 567.79

฿ 500.75

฿ 969.44

Special Price

On Sale Until 31/03/2025

฿ 1,197.67

Special Price

On Sale Until 31/03/2025

฿ 949.68

฿ 740.19

Special Price

On Sale Until 31/03/2025

฿ 1,193.76

Special Price

On Sale Until 31/03/2025

Days to Ship Same day Same day 3 Day(s) Same day Same day Same day Same day Same day 5 Day(s) Same day 5 Day(s) Same day 5 Day(s) 3 Day(s) 8 Day(s) 10 Day(s) Same day Same day 7 Day(s) Same day Same day
Sprocket ShapeShape BShape CShape BShape AShape CShape CShape CShape BShape BShape CShape CShape AShape AShape BShape AShape CShape BShape BShape BShape AShape B
Nominal Number25 ~ 8035 ~ 8040 ~ 6035 ~ 8035 ~ 6035 ~ 6025 ~ 8035 ~ 8035 ~ 8035 ~ 8035 ~ 8035 ~ 8035 ~ 6035 ~ 504035 ~ 6025 ~ 805040 ~ 6035 ~ 6025 ~ 80
Number of Teeth(T)13 ~ 239 ~ 2512 ~ 179 ~ 20-11 ~ 1912 ~ 2112 ~ 139 ~ 259 ~ 2511 ~ 1712 ~ 2114 ~ 2014 ~ 2112 ~ 1511 ~ 1812 ~ 191614 ~ 1914 ~ 2012 ~ 20
Shaft Bore Dia. d(mm)10 ~ 2010 ~ 202010 ~ 206 ~ 1510 ~ 2010 ~ 1510 ~ 2010 ~ 2010 ~ 2010 ~ 2020152010 ~ 151510 ~ 2025151512 ~ 25
MaterialSteelSteel-SteelEngineering PlasticStainless SteelEngineering PlasticSteelSteelSteelSteel / Stainless Steel-Stainless Steel-SteelEngineering PlasticSteelSteelEngineering PlasticSteelSteel
TypeIdlersIdlersIdlersIdlersIdlersIdlersIdlersIdlersIdlersIdlersIdlersIdlersIdlersIdlersIdlersIdlersIdlersIdlersIdlersIdlersIdlers
Number of Strands1 / 212111111111111111111
Chain TypeRSRSRSRSRSRSRSRSRSRSRSRSRSRSRSRSRSRSRSRSRS
Shaft TypeBearing Built-in, DoubleBearing Built-in, SingleBearing Built-in, DoubleBearing Built-in, SingleBearing Built-in, SingleBearing Built-in, SingleBearing Built-in, SingleBearing Built-in, DoubleBearing Built-in, DoubleBearing Built-in, DoubleBearing Built-in, SingleBearing Built-in, SingleBearing Built-in, SingleBearing Built-in, Single-Bearing Built-in, SingleBearing Built-in, SingleDBX BearingBearing Built-in, SingleBearing Built-in, SingleBearing Built-in, Single
Surface TreatmentTooth Surface HardeningBlack OxideTooth Surface HardeningBlack OxideNot ProvidedNot ProvidedNot ProvidedBlack OxideBlack OxideBlack OxideNot Provided / Black OxideTrivalent ChromateNot ProvidedTooth Surface Hardening-Not ProvidedBlack OxideBlack OxideNot ProvidedBlack OxideBlack Oxide

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  1. 1

Application example related to this category

Related Categories to Idlers

FAQ Idlers

Question: What are idlers and their role in industrial machinery?
Answer: Idlers are essential components in industrial machinery, primarily used in conveyor systems. They play a crucial role in supporting and guiding conveyor belts, ensuring smooth and efficient material transport.
Question: How do idlers contribute to conveyor belt longevity?
Answer: Idlers are designed to minimize friction and wear on conveyor belts, thereby extending their lifespan. By providing proper support and alignment, idlers reduce stress and strain on the belt, ultimately enhancing durability.
Question: What materials are used in manufacturing high-quality idlers?
Answer: High-grade materials such as hardened steel, rubber, and polyurethane are commonly utilized in the production of durable idlers. These materials offer excellent resistance to corrosion, abrasion, and impact, ensuring reliable performance even in challenging environments.
Question: What industries benefit from using idlers?
Answer: Various industries, including mining, agriculture, and manufacturing, benefit from the use of idlers in their conveyor systems. Whether transporting raw materials, agricultural products, or finished goods, idlers play a critical role in streamlining production processes.
Question: How do sealed bearings enhance idler performance?
Answer: Idlers equipped with sealed bearings require minimal maintenance and offer extended service life. Sealed bearings protect against contaminants and moisture ingress, ensuring smooth operation and reducing the need for frequent lubrication.
Question: Can idlers be customized to fit specific machinery requirements?
Answer: Yes, idlers are often customizable to suit specific machinery configurations and application needs. Manufacturers offer a range of sizes, designs, and load capacities to accommodate various conveyor systems and material handling tasks.
Question: What maintenance practices ensure optimal idler performance?
Answer: Regular inspection and cleaning of idlers are essential for maintaining optimal performance. Monitoring for signs of wear, misalignment, or damage allows for timely replacement or adjustment, preventing costly downtime and conveyor belt damage.
Question: What are the benefits of upgrading to premium idlers?
Answer: Upgrading to premium idlers offers numerous benefits, including enhanced durability, reduced maintenance requirements, and improved conveyor system efficiency. Investing in quality idlers ultimately translates to increased productivity and cost savings in the long run.
Question: How do idlers contribute to workplace safety?
Answer: Properly functioning idlers contribute to workplace safety by ensuring smooth and reliable material transport. By minimizing belt slippage, misalignment, and jams, idlers help prevent accidents and injuries associated with conveyor system malfunctions.
Question: What factors should be considered when selecting idlers for a specific application?
Answer: When choosing idlers for a particular application, factors such as belt width, load capacity, operating conditions, and environmental factors must be taken into account. Consulting with experienced suppliers or engineers can help ensure the selection of idlers that meet performance requirements and maximize operational efficiency.