Flat Idlers

Scraped SKU: 7723-000000-000000 Series: Flat Idlers 2026-06-21 14:02:26

Attributes

Part Number7723-000000-000000

Description

# Flat Idlers Idlers are used to take-up extra belt length and provide adjustment for tensioning belt drives. Idler pulleys and sprockets can alter belt paths and clear obstructions. - Idler assembly may consist of: idler sprocket and bracket, flat idler and bracket, standard sheave or sprocket used with an idler bearing and idler bracket. - Idler sprockets, flat idlers and idler bushings contain sealed ball bearings and an integral shaft for mounting to adjustable idler brackets. - Lubrication and maintenance are not required.

Variations (9)

4.25X1.25-IDL-FLAT

Bearing No.6304
Belt Width (in)1.25
Belt Width (mm)31.8
Face Width (in)1.25
Thread Size3/4-16
Diameter (mm)107.95
A (in)1.13
B (in)1.13
C (in)0.64
D (in)1.3
E (in)3.75
Outside Diameter (in)4.25
Width (mm)31.75
Markets/ApplicationsRecommended for drives with limited take-up or no center distance adjustment. Idlers may remain in a fixed location or may be adjustable to allow belt pre-tension take-up.
Use With1-2 Strand 3V/3VX, 1 Strand A/AX
Use with Synchronous Belt: Pitch8mm, L, H
Use with Synchronous Belt: WidthUp to 21mm (0.85")
MaterialSteel
Customer Pack1
Weight (lbs.)5.5

4.25X2.00-IDL-FLAT

Bearing No.6306
Belt Width (in)2
Belt Width (mm)50.8
Face Width (in)2
Thread Size3/4-16
Diameter (mm)107.95
A (in)1.5
B (in)1.13
C (in)0.63
D (in)1.32
E (in)4.5
Outside Diameter (in)4.25
Width (mm)50.8
Markets/ApplicationsRecommended for drives with limited take-up or no center distance adjustment. Idlers may remain in a fixed location or may be adjustable to allow belt pre-tension take-up.
Use With3-4 Strand 3V/3VX, 2 Strand A/AX
Use with Synchronous Belt: Pitch8mm, L, H
Use with Synchronous Belt: WidthUp to 38mm (1.5")
MaterialSteel
Customer Pack1
Weight (lbs.)7.5

4.25X3.00-IDL-FLAT

Bearing No.6306
Belt Width (in)3
Belt Width (mm)76.2
Face Width (in)3
Thread Size3/4-16
Diameter (mm)107.95
A (in)1.5
B (in)1.13
C (in)0.75
D (in)1.32
E (in)5.63
Outside Diameter (in)4.25
Width (mm)76.2
Markets/ApplicationsRecommended for drives with limited take-up or no center distance adjustment. Idlers may remain in a fixed location or may be adjustable to allow belt pre-tension take-up.
Use With5-6 Strand 3V/3VX, 3 Strand A/AX
Use with Synchronous Belt: Pitch8mm, L, H
Use with Synchronous Belt: WidthUp to 62mm (2.4")
MaterialSteel
Customer Pack1
Weight (lbs.)10.6

4.25X4.00-IDL-FLAT

Bearing No.6306
Belt Width (in)4
Belt Width (mm)101.6
Face Width (in)4
Thread Size3/4-16
Diameter (mm)107.95
A (in)1.5
B (in)1.13
C (in)0.75
D (in)1.32
E (in)6.63
Outside Diameter (in)4.25
Width (mm)101.6
Markets/ApplicationsRecommended for drives with limited take-up or no center distance adjustment. Idlers may remain in a fixed location or may be adjustable to allow belt pre-tension take-up.
Use With8 Strand 3V/3VX, 4 Strand A/AX
Use with Synchronous Belt: Pitch8mm, L, H
Use with Synchronous Belt: WidthUp to 85mm (3.3")
MaterialSteel
Customer Pack1
Weight (lbs.)13.6

6.50X1.75-IDL-FLAT

Bearing No.6308
Belt Width (in)1.75
Belt Width (mm)44.5
Face Width (in)1.75
Thread Size1-14
Diameter (mm)165.10
A (in)2
B (in)1.5
C (in)1.04
D (in)1.96
E (in)5.69
Outside Diameter (in)6.50
Width (mm)44.45
Markets/ApplicationsRecommended for drives with limited take-up or no center distance adjustment. Idlers may remain in a fixed location or may be adjustable to allow belt pre-tension take-up.
Use With1 Strand B/BX
Use with Synchronous Belt: Pitch14mm
Use with Synchronous Belt: WidthUp to 20mm
MaterialSteel
Customer Pack1
Weight (lbs.)17.1

6.50X2.75-IDL-FLAT

Bearing No.6308
Belt Width (in)2.75
Belt Width (mm)69.9
Face Width (in)2.75
Thread Size1-14
Diameter (mm)165.10
A (in)2
B (in)1.5
C (in)0.13
D (in)2.1
E (in)5.69
Outside Diameter (in)6.50
Width (mm)69.85
Markets/ApplicationsRecommended for drives with limited take-up or no center distance adjustment. Idlers may remain in a fixed location or may be adjustable to allow belt pre-tension take-up.
Use With2-3 Strand B/BX
Use with Synchronous Belt: Pitch14mm
Use with Synchronous Belt: WidthUp to 55mm
MaterialSteel
Customer Pack1
Weight (lbs.)23.0

6.50X4.25-IDL-FLAT

Bearing No.6308
Belt Width (in)4.25
Belt Width (mm)108
Face Width (in)4.25
Thread Size1-14
Diameter (mm)165.10
A (in)2.38
B (in)1.5
C (in)0.13
D (in)1.98
E (in)7.06
Outside Diameter (in)6.50
Width (mm)107.95
Markets/ApplicationsRecommended for drives with limited take-up or no center distance adjustment. Idlers may remain in a fixed location or may be adjustable to allow belt pre-tension take-up.
Use With4-5 Strand B/BX
Use with Synchronous Belt: Pitch14mm
Use with Synchronous Belt: WidthUp to 90mm
MaterialSteel
Customer Pack1
Weight (lbs.)33.0

6.50X5.75-IDL-FLAT

Bearing No.6308
Belt Width (in)5.75
Belt Width (mm)146.1
Face Width (in)5.75
Thread Size1-14
Diameter (mm)165.10
A (in)2.38
B (in)1.5
C (in)0.99
D (in)1.98
E (in)9.31
Outside Diameter (in)6.50
Width (mm)146.05
Markets/ApplicationsRecommended for drives with limited take-up or no center distance adjustment. Idlers may remain in a fixed location or may be adjustable to allow belt pre-tension take-up.
Use With6 Strand B/BX
Use with Synchronous Belt: Pitch14mm
Use with Synchronous Belt: WidthUp to 125mm
MaterialSteel
Customer Pack1
Weight (lbs.)45.0

6.50X7.50-IDL-FLAT

Bearing No.6308
Belt Width (in)7.5
Belt Width (mm)190.5
Face Width (in)7.5
Thread Size1-14
Diameter (mm)165.10
A (in)2.38
B (in)1.5
C (in)1
D (in)1.98
E (in)11.19
Outside Diameter (in)6.50
Width (mm)190.5
Markets/ApplicationsRecommended for drives with limited take-up or no center distance adjustment. Idlers may remain in a fixed location or may be adjustable to allow belt pre-tension take-up.
Use With8 Strand B/BX
Use with Synchronous Belt: Pitch14mm
Use with Synchronous Belt: WidthUp to 170mm
MaterialSteel
Customer Pack1
Weight (lbs.)57.0

Specifications

Bearing No.6304 – 6308
Belt Width (in)1.25 – 7.5
Belt Width (mm)31.8 – 190.5
Face Width (in)1.25 – 7.5
Thread Size3/4-16, 1-14
Diameter (mm)107.95 – 165.10
A (in)1.13 – 2.38
B (in)1.13 – 1.5
C (in)0.13 – 1.04
D (in)1.3 – 2.1
E (in)3.75 – 11.19
Outside Diameter (in)4.25 – 6.50
Width (mm)31.75 – 190.5
Markets/ApplicationsRecommended for drives with limited take-up or no center distance adjustment. Idlers may remain in a fixed location or may be adjustable to allow belt pre-tension take-up.
Use With1-2 Strand 3V/3VX, 1 Strand A/AX, 3-4 Strand 3V/3VX, 2 Strand A/AX, 5-6 Strand 3V/3VX, 3 Strand A/AX, 8 Strand 3V/3VX, 4 Strand A/AX, 1 Strand B/BX, 2-3 Strand B/BX, +3 more
Use with Synchronous Belt: Pitch8mm, L, H, 14mm
Use with Synchronous Belt: WidthUp to 21mm (0.85"), Up to 38mm (1.5"), Up to 62mm (2.4"), Up to 85mm (3.3"), Up to 20mm, Up to 55mm, +3 more
MaterialSteel
Customer Pack1
Weight (lbs.)5.5 – 57.0

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