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- Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.
Flat Belt Idlers Medium Length (C-ROFAC20-8-L50-H0.8)
- Volume Discount
· These idlers are designed for use with flat belts in conveyor systems.
· Model: C-ROFAC (Flanged Type) and C-ROFAN (Crowned Type)
· Idlers type: Bearing Built-in.
· Material Idlers body: Aluminum
· surface treatment solution: Clear Anodize solution.
· Material Bearing: Steel.
· Outer Diameter: 15 - 50 mm.
· Shaft (Bore) Diameter: 6, 8, 10, 12 and 15 mm.
· L dimension: 25, 30, 40, 50 and 60 mm.
· The Flat Belt Idlers Medium Length C-ROFAC and C-ROFAN types are specific idlers manufactured by MISUMI.
· Pulleys for Flat Belts (Width L=25 to 100) - Crowned, Crosspiece Groove Straight
Part Number
Configured Part Number is shown.
C-ROFAC20-8-L50-H0.8
Economy Flat Belt Idlers Medium Length
- Choose from a range of sizes to fit your specific conveyor and material handling needs.
- Enjoy smooth and reliable operation with our idlers featuring precise tolerance.
- Made from high-grade aluminum with a clear anodized coating for long-lasting use.
- Available in designs to manage belt alignment and tensioning.
- Equipped with built-in precision bearings for robust support and reduced maintenance.
MISUMI Standard
Cheaper Price
Product Variety
3D CAD Support
Product Overview of Idlers
Product Feature of Idlers
| Type of Idlers |  Material |  Surface Treatment | Material |  Accessories | |
| Straight Type of Idlers | Arc Type | Bearing | |||
| C-ROFAN | C-ROFAC | Aluminum | Clear Anodized | Steel | Retaining ring (Spring Steel) |
Feature of Idlers 1: ordinary flanged type, and arc type effectively restraining running deviation are available, suitable for conveying design, and also playing an effect of tensioning the belt.
Feature of Idlers 2: Coaxial degree of less than ⊙0.05mm, effectively reducing the belt vibration when running
Feature of Idlers 3: Selecting MISUMI Economy series bearing.
Dimensional Drawing of Idlers
Bearing is pressed fit.Bearing cannot be removed.The tolerance accuracy of T is ±0.2mm. Please select the Idlers model after confirming the width tolerance of the flat belt.Usage Method of Idlers
| Usage Method Example Drawing of Idlers | Use Instructions for Flat-belt Pulleys | |
 | The workpiece can be transmitted by the combined use of flat-belt pulleys/Idlers, flat-belt idlers and flat belts. The flat-belt idlers can also play the role of tensioning the belt. | |
Example Use of Idlers
2-row flat belt conveyor
Mechanism function of Idlers
Conveyor used for pallet transportation of equipment in automatic conveying and manual operation
■ Function of flat-belt pulleys
The drive flat-belt pulleys and the driven flat belt idler drive the flat belt to carry out the conveying operation.
Related Industries of Idlers
| Smart phone | Medical | Electronic & Electrical Appliances | ||
 |  |  | ||
| Automotive | Robotics | Lithium battery | ||
 |  |  |
Precautions of Idlers
Related Products of Idlers
| Flat-belt Idlers, Width (T), 6 to 32 mm | Flat Belts for General Use | High Torque Timing Pulleys S2M Type | ||
 |  |  | ||
| Typical model of Idlers: HBG15-6 | Typical model of Idlers: HBLT350-4.23 | Typical model of Idlers: HTPA48S2M040-B-N10 | ||
| Advantages of Idlers: short delivery time, multiple types | Advantages of Idlers: custom size | Advantages of Idlers: short delivery time, multiple types |
Specification Table of Idlers
to 
. | Part Number (Type· D) | － |  d | － |  L | － | H | |
| C-ROFAN15 C-ROFAC15 | － － | 6 6 | － － | L25 L25 | － | H0.8 |
■ Dimension Specification Table of Idlers
| Part Number | d | L | d1 | Bearing size | |||
| Type | D | No. | D1 | B | |||
| Straight type C-ROFAN | 15 | 6 | 25 40 50 | 9 | C-E676ZZ | 10 | 3 |
| 20 | 8 | 25 30 | 10 | C-E678ZZ | 12 | 3.5 | |
| 30 | 8 | 50 60 | 15 | C-E698ZZ | 19 | 6 | |
| 40 | 10 | 40 | 17 | C-E6000ZZ | 26 | 8 | |
| 50 | 20 | 30 50 | 27 | C-E6904ZZ | 37 | 9 | |
| Part Number | d | L | H | d1 | Bearing size | |||
| Type | D | No. | D1 | B | ||||
| Arc Type C-ROFAC | 15 | 6 | 25 50 | 0.8 | 9 | C-E676ZZ | 10 | 3 |
| 20 | 8 | 25 30 40 50 | 10 | C-E678ZZ | 12 | 3.5 | ||
| 30 | 12 | 30 40 50 60 | 15 | C-E6901ZZ | 24 | 6 | ||
| 40 | 10 | 30 40 60 | 17 | C-E6000ZZ | 26 | 8 | ||
| 50 | 15 | 50 60 | 27 | C-E6902ZZ | 28 | 7 | ||
Part Number
CAD Data download and 3D preview are not available because the part number has not yet been determined.
- *In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
- Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.
Basic Information
| Type | Idlers (Bearing Built-in) | Surface Urethane | Urethane Not Provided | Material | Aluminum Alloy |
|---|---|---|---|---|---|
| Surface Treatment | Clear Anodize |
Please check the type/dimensions/specifications of the part C-ROFAC20-8-L50-H0.8 in the Flat Belt Idlers Medium Length series.
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Frequently asked question (FAQ)
- Question: Does flat belt idlers have concentricity standard?
-
Answer:
Economy series flat belt pulley and idler coaxiality is
- Question: Can the flat belt idler bearing be disassembled.
- Answer: According to different products, there are two types of MISUMI flat belt idlers: bearing press-fit type and bearing removal type. Therefore, during the design process, please design and use after the customer confirms the characteristics of the product.
- Question: What precision bearings are used for flat belt idlers?
- Answer: MISUMI flat belt idlers use radial bearings of accuracy grade 0. For specific dimensions of the bearings, please refer to Economy series Bearing Small diameter ball.
Similar Part Numbers
| Part Number |
|---|
| C-ROFAC20-8-L25-H0.8 |
| C-ROFAC20-8-L30-H0.8 |
| C-ROFAC20-8-L40-H0.8 |
| C-ROFAC30-12-L30-H0.8 |
| C-ROFAC30-12-L40-H0.8 |
| C-ROFAC30-12-L50-H0.8 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | RoHS | Shape | Outer Dia. D (Ø) | Shaft (Bore) Dia. d (mm) | L Dimension (mm) |
|---|---|---|---|---|---|---|---|---|---|
SGD 14.74 | 2 Piece(s) | Available | 5 Day(s) | 10 | Crowned | 20 | 8 | 25 | |
SGD 15.32 | 1 Piece(s) | Available | Same day | 10 | Crowned | 20 | 8 | 30 | |
SGD 15.90 | 2 Piece(s) | Available | 5 Day(s) | 10 | Crowned | 20 | 8 | 40 | |
SGD 19.56 | 2 Piece(s) | Available | 5 Day(s) | 10 | Crowned | 30 | 12 | 30 | |
SGD 20.14 | 1 Piece(s) | Available | Same day | 10 | Crowned | 30 | 12 | 40 | |
SGD 20.72 | 1 Piece(s) | Available | Same day | 10 | Crowned | 30 | 12 | 50 |
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