Gotoh Bass Tuners - GB640
Lightweight and solid, Gotoh's GB640 and reverse-wind GBR640 bass tuners have a gear ratio of 28:1.
Available in seven finishes. The weight per piece is only 67 grams, compare with similar sized tuners with a weight of 110 to 115 grams per piece.
RES-O-LITE
Example shown in nickel finish (N).
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GB640/GBR640 Dimension Diagram
Please check the measurements in this guide against the dimensions of the headstock that you plan to install upon. It is always best practice to measure carefully and/or to use the service of repair professionals. GB640 and GBR640 machine heads have the same dimensions.
Use the controls below to filter the list of products.
Number of matching products: 21
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Gotoh GBR640-4-B
Black Chrome GBR640 Reverse-wind 4-String Bass Tuning Machine Set
Set of four GBR640 in black chrome finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 4 items in set
Headstock: L2+R2 • L4 • R4 • L3+R1
Body: GBR640
Finish: Black Chrome
String Count: 4-String
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Gotoh GBR640-5-B
Black Chrome GBR640 Reverse-wind 5-String Bass Tuning Machine Set
Set of five GBR640 in black chrome finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 5 items in set
Headstock: L3+R2 • L4+R1 • L5 • L1+R4 • L2+R3
Body: GBR640
Finish: Black Chrome
String Count: 5-String
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Gotoh GBR640-6-B
Black Chrome GBR640 Reverse-wind 6-String Bass Tuning Machine Set
Set of six GBR640 in black chrome finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 6 items in set
Headstock: L3+R3 • L4+R2 • L2+R4
Body: GBR640
Finish: Black Chrome
String Count: 6-String
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Gotoh GBR640-4-CK
Cosmo Black GBR640 Reverse-wind 4-String Bass Tuning Machine Set
Set of four GBR640 in cosmo black finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 4 items in set
Headstock: L2+R2 • L4 • R4 • L3+R1
Body: GBR640
Finish: Cosmo Black
String Count: 4-String
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Gotoh GBR640-5-CK
Cosmo Black GBR640 Reverse-wind 5-String Bass Tuning Machine Set
Set of five GBR640 in cosmo black finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 5 items in set
Headstock: L3+R2 • L4+R1 • L5 • L1+R4 • L2+R3
Body: GBR640
Finish: Cosmo Black
String Count: 5-String
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Gotoh GBR640-6-CK
Cosmo Black GBR640 Reverse-wind 6-String Bass Tuning Machine Set
Set of six GBR640 in cosmo black finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 6 items in set
Headstock: L3+R3 • L4+R2 • L2+R4
Body: GBR640
Finish: Cosmo Black
String Count: 6-String
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Gotoh GBR640-4-GG
Gold GBR640 Reverse-wind 4-String Bass Tuning Machine Set
Set of four GBR640 in gold finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 4 items in set
Headstock: L2+R2 • L4 • R4 • L3+R1
Body: GBR640
Finish: Gold
String Count: 4-String
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Gotoh GBR640-5-GG
Gold GBR640 Reverse-wind 5-String Bass Tuning Machine Set
Set of five GBR640 in gold finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 5 items in set
Headstock: L3+R2 • L4+R1 • L5 • L1+R4 • L2+R3
Body: GBR640
Finish: Gold
String Count: 5-String
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Gotoh GBR640-6-GG
Gold GBR640 Reverse-wind 6-String Bass Tuning Machine Set
Set of six GBR640 in gold finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 6 items in set
Headstock: L3+R3 • L4+R2 • L2+R4
Body: GBR640
Finish: Gold
String Count: 6-String
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Gotoh GBR640-4-N
Nickel GBR640 Reverse-wind 4-String Bass Tuning Machine Set
Set of four GBR640 in nickel finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 4 items in set
Headstock: L2+R2 • L4 • R4 • L3+R1
Body: GBR640
Finish: Nickel
String Count: 4-String
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Gotoh GBR640-5-N
Nickel GBR640 Reverse-wind 5-String Bass Tuning Machine Set
Set of five GBR640 in nickel finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 5 items in set
Headstock: L3+R2 • L4+R1 • L5 • L1+R4 • L2+R3
Body: GBR640
Finish: Nickel
String Count: 5-String
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Gotoh GBR640-6-N
Nickel GBR640 Reverse-wind 6-String Bass Tuning Machine Set
Set of six GBR640 in nickel finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 6 items in set
Headstock: L3+R3 • L4+R2 • L2+R4
Body: GBR640
Finish: Nickel
String Count: 6-String
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Gotoh GBR640-4-XC
X-Chrome GBR640 Reverse-wind 4-String Bass Tuning Machine Set
Set of four GBR640 in x-chrome finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 4 items in set
Headstock: L2+R2 • L4 • R4 • L3+R1
Body: GBR640
Finish: X-Chrome
String Count: 4-String
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Gotoh GBR640-5-XC
X-Chrome GBR640 Reverse-wind 5-String Bass Tuning Machine Set
Set of five GBR640 in x-chrome finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 5 items in set
Headstock: L3+R2 • L4+R1 • L5 • L1+R4 • L2+R3
Body: GBR640
Finish: X-Chrome
String Count: 5-String
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Gotoh GBR640-6-XC
X-Chrome GBR640 Reverse-wind 6-String Bass Tuning Machine Set
Set of six GBR640 in x-chrome finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 6 items in set
Headstock: L3+R3 • L4+R2 • L2+R4
Body: GBR640
Finish: X-Chrome
String Count: 6-String
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Gotoh GBR640-4-XG
X-Gold GBR640 Reverse-wind 4-String Bass Tuning Machine Set
Set of four GBR640 in x-gold finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 4 items in set
Headstock: L2+R2 • L4 • R4 • L3+R1
Body: GBR640
Finish: X-Gold
String Count: 4-String
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Gotoh GBR640-5-XG
X-Gold GBR640 Reverse-wind 5-String Bass Tuning Machine Set
Set of five GBR640 in x-gold finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 5 items in set
Headstock: L3+R2 • L4+R1 • L5 • L1+R4 • L2+R3
Body: GBR640
Finish: X-Gold
String Count: 5-String
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Gotoh GBR640-6-XG
X-Gold GBR640 Reverse-wind 6-String Bass Tuning Machine Set
Set of six GBR640 in x-gold finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 6 items in set
Headstock: L3+R3 • L4+R2 • L2+R4
Body: GBR640
Finish: X-Gold
String Count: 6-String
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Gotoh GBR640-4-XN
X-Nickel GBR640 Reverse-wind 4-String Bass Tuning Machine Set
Set of four GBR640 in x-nickel finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 4 items in set
Headstock: L2+R2 • L4 • R4 • L3+R1
Body: GBR640
Finish: X-Nickel
String Count: 4-String
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Gotoh GBR640-5-XN
X-Nickel GBR640 Reverse-wind 5-String Bass Tuning Machine Set
Set of five GBR640 in x-nickel finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 5 items in set
Headstock: L3+R2 • L4+R1 • L5 • L1+R4 • L2+R3
Body: GBR640
Finish: X-Nickel
String Count: 5-String
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Gotoh GBR640-6-XN
X-Nickel GBR640 Reverse-wind 6-String Bass Tuning Machine Set
Set of six GBR640 in x-nickel finish. Gear ratio: 28:1. RES-O-LITE series. Reverse-wind gear. Adjustable tension. Weight per piece: 61.8 grams.
Package includes bushings + wood screws + hex wrench. 6 items in set
Headstock: L3+R3 • L4+R2 • L2+R4
Body: GBR640
Finish: X-Nickel
String Count: 6-String
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