Poly Chain® GT™ Carbon™ Idler Sprocket

Scraped SKU: 7720-000000-000035 Series: Poly Chain® GT™ Carbon™ Idler Sprocket 2026-06-11 09:29:44

Attributes

Part Number7720-000000-000035

Description

Poly Chain® GT™ Carbon™ Idler Sprocket 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)

12-IDL-SPRK

Bearing No.6304
Belt Width (in)0.47
Belt Width (mm)12
F Threads (in)3/4 - 16
Number of Teeth32
Thread Size3/4-16
B (in)1.25
C (in)0.5
D (in)0.85
E (in)1.56
G (in)0.94
H (in)2.75
Width (mm)12
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.
Customer Pack1
Weight (lbs.)3.8

125-IDL-SPRK

Bearing No.6310
Belt Width (in)4.92
Belt Width (mm)125
F Threads (in)1 - 14
Number of Teeth34
Thread Size1-14
B (in)3.38
C (in)0.19
D (in)5.63
E (in)2.25
G (in)1.09
H (in)4.88
J (in)4.34
Width (mm)125
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.
Customer Pack1
Weight (lbs.)36.45

20-IDL-SPRK

Bearing No.6308
Belt Width (in)0.78
Belt Width (mm)20
F Threads (in)1 - 14
Number of Teeth30
Thread Size1-14
B (in)2.55
C (in)1
D (in)1.36
E (in)2.25
G (in)1
H (in)4.38
Width (mm)20
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.
Customer Pack1
Weight (lbs.)12.55

21-IDL-SPRK

Bearing No.6304
Belt Width (in)0.83
Belt Width (mm)21
F Threads (in)3/4 - 16
Number of Teeth32
Thread Size3/4-16
B (in)1.25
C (in)0.5
D (in)1.24
E (in)1.56
G (in)0.56
H (in)2.75
Width (mm)21
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.
Customer Pack1
Weight (lbs.)3.88

36-IDL-SPRK

Bearing No.6306
Belt Width (in)1.42
Belt Width (mm)36
F Threads (in)3/4 - 16
Number of Teeth36
Thread Size3/4-16
B (in)1.91
C (in)0.75
D (in)1.86
E (in)1.63
Width (mm)36
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.
Customer Pack1
Weight (lbs.)5.14

37-IDL-SPRK

Bearing No.6308
Belt Width (in)1.46
Belt Width (mm)37
F Threads (in)1 - 14
Number of Teeth30
Thread Size1-14
B (in)2.55
C (in)1
D (in)2.06
E (in)2.25
G (in)0.25
H (in)4.38
Width (mm)37
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.
Customer Pack1
Weight (lbs.)13.46

62-IDL-SPRK

Bearing No.6306
Belt Width (in)2.44
Belt Width (mm)62
F Threads (in)3/4 - 16
Number of Teeth36
Thread Size3/4-16
B (in)1.91
C (in)0.75
D (in)2.91
E (in)1.63
G (in)0.69
H (in)3.13
Width (mm)62
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.
Customer Pack1
Weight (lbs.)9.69

68-IDL-SPRK

Bearing No.6310
Belt Width (in)2.67
Belt Width (mm)68
F Threads (in)1 - 14
Number of Teeth34
Thread Size1-14
B (in)3.38
C (in)0.56
D (in)3.33
E (in)2.25
G (in)1
H (in)4.88
J (in)4.34
Width (mm)68
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.
Customer Pack1
Weight (lbs.)26.03

90-IDL-SPRK

Bearing No.6310
Belt Width (in)3.54
Belt Width (mm)90
F Threads (in)1 - 14
Number of Teeth34
Thread Size1-14
B (in)3.38
C (in)0.31
D (in)4.2
E (in)2.25
G (in)1
H (in)4.88
J (in)4.34
Width (mm)90
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.
Customer Pack1
Weight (lbs.)32.18

Specifications

Bearing No.6304 – 6310
Belt Width (in)0.47 – 4.92
Belt Width (mm)12 – 125
F Threads (in)3/4 - 16, 1 - 14
Number of Teeth30 – 36
Thread Size3/4-16, 1-14
B (in)1.25 – 3.38
C (in)0.19 – 1
D (in)0.85 – 5.63
E (in)1.56 – 2.25
G (in)0.25 – 1.09
H (in)2.75 – 4.88
Width (mm)12 – 125
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.
Customer Pack1
Weight (lbs.)3.8 – 36.45
J (in)4.34

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