Idlers for Flat Belts-Flanged Type/Crowned Type/Width L6-32

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.

· Idlers type: Bearing Built-in.
· Shaft Type: one Bearing and Bearing on Each End 2 pcs.
· Type of Idlers: Flanged type and Crowned type.
· The series code of Flanged type: HBG HBGM HBGA HBGS and HBGP.
· The series code of Crowned type: HBGC HBGCM HBGCA and HBGCS.
· Material Idlers body: S45C Equivalent , Aluminum Alloy, Stainless Steel SUS304 and Polyacetal.
· Material of Bearing: Steel and Stainless Steel.
· Outer Diameter: 15 – 50 mm
· Width Thickness: 6 – 32 mm
· Idlers for Stainless Steel Belts- Crowned

Flanged
T = 6·11 T = 16·21·27·32 Crowned
T = 11 T = 16·21·27·32

* Bearing Accuracy: JIS B1514 Class 0
[ ! ]The bearings are filled with grease.
[ ! ]Bearings are press-fitted. Use a puller to remove them.
[ ! ]Unless otherwise specified, the dimension tolerance conforms to JIS B 0407 Class m.

Type		[M] Material	[S] Surface Treatment	[M] Material	[A] Accessory
Flanged	Crowned			Bearing (Track Ring / Rolling Element)
HBG	HBGC	S45C Equivalent	Black Oxide	*SUJ2	Retaining Ring (SUS304) (Incorporated)
HBGM	HBGCM		Electroless Nickel Plating
HBGA	HBGCA	2000 Series Aluminum Alloy	Clear Anodize
HBGAS	HBGCAS			SUS440C Equivalent
HBGS	HBGCS	SUS304	—
HBGP	—	Polyacetal	—	*SUJ2

"*SUJ2" uses some equivalent materials.

Unspecified Dimension
Tolerance

Dimension Range		Tolerance (mm)
Over	Or Less	Tolerance (mm)
0.5	3	±0.1
3	6	±0.1
6	30	±0.2
30	120	±0.3

[ ! ] Compliant with JIS B
0405 m (Medium Class).

d Hole Tolerance

d (mm)		I.D. Tolerance (mm)

Over	Or Less
0.6	2.5	0 －0.008

2.5	10	0 －0.008

10	18	0 －0.008

18	30	0 －0.010

[ ! ] Compliant with JIS B
1514 Class 0.

App. Example

Tensioning Unit with an Idler
　