Economy Idlers for Flat Belts-Straight Type/Crosspiece Groove Straight Type/Crowned Type/Width L110-500
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MISUMI
- [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.
· 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
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 | ||
*SUJ2 equivalent materials are used in some products. Please check here for part numbers subject to specification changes.