Collection: Bore Reducers

14 Products in this selection
  • Inch to Metric / Inch to Inch / Metric to Metric. Brass reducing bushes.
  • S = Recommended set screw positions.
  • C = Recommended position for single set screw fastening.
  • T = Recommended position for tangential screw in clamp hub.
Bore Reducers
Additional resources:

A more comprehensive listing may be found on the MBA Minibearings main store at Bore Reducers.
Outside Diameter (d) Inside Diameter (D) Length (L) Indicative
Image
5.00
mm
+ 0.03 / - 0.05
3.18
mm
+ 0.03 / - 0.00
4.3
mm
1061819 | RB-050-032-F-043-B (2 Pcs) --- Bore Reducers - 5x3.18x4.3 mm - Brass
Material: Brass    End Lip: Yes   
Part Number: RB-050-032-F-043-B (2 Pcs) Bore Reducers - 5x3.18x4.3 mm - Brass
1 pack (2 pcs) Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Per 2
Outside Diameter (d) Inside Diameter (D) Length (L) Indicative
Image
5.00
mm
+ 0.03 / - 0.05
3.18
mm
+ 0.03 / - 0.00
4.3
mm
1061819 | RB-050-032-F-043-B (2 Pcs) --- Bore Reducers - 5x3.18x4.3 mm - Brass
Material: Brass    End Lip: Yes   
Part Number: RB-050-032-F-043-B (2 Pcs) Bore Reducers - 5x3.18x4.3 mm - Brass
1 pack (2 pcs) Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Per 2
5.00
mm
+ 0.03 / - 0.05
4.00
mm
+ 0.03 / - 0.00
4.3
mm
1061829 | RB-050-040-F-043-B (3 Pcs) --- Bore Reducers - 5x4x4.3 mm - Brass
Material: Brass    End Lip: Yes   
Part Number: RB-050-040-F-043-B (3 Pcs) Bore Reducers - 5x4x4.3 mm - Brass
1 pack (3 pcs) Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Per 3
5.00
mm
+ 0.03 / - 0.05
4.00
mm
+ 0.03 / - 0.00
4.3
mm
1061829 | RB-050-040-F-043-B (3 Pcs) --- Bore Reducers - 5x4x4.3 mm - Brass
Material: Brass    End Lip: Yes   
Part Number: RB-050-040-F-043-B (3 Pcs) Bore Reducers - 5x4x4.3 mm - Brass
1 pack (3 pcs) Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Per 3
6.00
mm
+ 0.013 / - 0.025
3.00
mm
+ 0.025 / 0.000
9.0
mm
1066545 | RB-060-030-090-A --- Bore Reducers - 6x3x9 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-060-030-090-A Bore Reducers - 6x3x9 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $9.00 AUD
Regular price $17.10 AUD Sale price $9.00 AUD
Each
6.00
mm
+ 0.013 / - 0.025
3.00
mm
+ 0.025 / 0.000
9.0
mm
1066545 | RB-060-030-090-A --- Bore Reducers - 6x3x9 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-060-030-090-A Bore Reducers - 6x3x9 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $9.00 AUD
Regular price $17.10 AUD Sale price $9.00 AUD
Each
6.35
mm
+ 0.013 / - 0.000
3.00
mm
+ 0.025 / 0.000
12.0
mm
1071716 | RB-064-030-120-A --- Bore Reducers - 6.35x3x12 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-064-030-120-A Bore Reducers - 6.35x3x12 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $6.00 AUD
Regular price $11.40 AUD Sale price $6.00 AUD
Each
6.35
mm
+ 0.013 / - 0.000
3.00
mm
+ 0.025 / 0.000
12.0
mm
1071716 | RB-064-030-120-A --- Bore Reducers - 6.35x3x12 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-064-030-120-A Bore Reducers - 6.35x3x12 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $6.00 AUD
Regular price $11.40 AUD Sale price $6.00 AUD
Each
6.35
mm
+ 0.013 / - 0.000
3.18
mm
+ 0.025 / 0.000
9.5
mm
1071756 | RB-064-032-095-A --- Bore Reducers - 6.35x3.18x9.5 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-064-032-095-A Bore Reducers - 6.35x3.18x9.5 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $6.00 AUD
Regular price $11.40 AUD Sale price $6.00 AUD
Each
6.35
mm
+ 0.013 / - 0.000
3.18
mm
+ 0.025 / 0.000
9.5
mm
1071756 | RB-064-032-095-A --- Bore Reducers - 6.35x3.18x9.5 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-064-032-095-A Bore Reducers - 6.35x3.18x9.5 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $6.00 AUD
Regular price $11.40 AUD Sale price $6.00 AUD
Each
6.35
mm
+ 0.013 / - 0.000
4.00
mm
+ 0.025 / 0.000
9.0
mm
1071799 | RB-064-040-090-A --- Bore Reducers - 6.35x4x9 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-064-040-090-A Bore Reducers - 6.35x4x9 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $7.00 AUD
Regular price $13.30 AUD Sale price $7.00 AUD
Each
6.35
mm
+ 0.013 / - 0.000
4.00
mm
+ 0.025 / 0.000
9.0
mm
1071799 | RB-064-040-090-A --- Bore Reducers - 6.35x4x9 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-064-040-090-A Bore Reducers - 6.35x4x9 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $7.00 AUD
Regular price $13.30 AUD Sale price $7.00 AUD
Each
6.35
mm
+ 0.013 / - 0.000
6.00
mm
+ 0.025 / 0.000
9.0
mm
1071887 | RB-064-060-090-B --- Bore Reducers - 6.35x6x9 mm - Brass
Material: Brass    End Lip: No   
Part Number: RB-064-060-090-B Bore Reducers - 6.35x6x9 mm - Brass
5 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Each
6.35
mm
+ 0.013 / - 0.000
6.00
mm
+ 0.025 / 0.000
9.0
mm
1071887 | RB-064-060-090-B --- Bore Reducers - 6.35x6x9 mm - Brass
Material: Brass    End Lip: No   
Part Number: RB-064-060-090-B Bore Reducers - 6.35x6x9 mm - Brass
5 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Each
8.00
mm
+ 0.013 / - 0.025
4.00
mm
+ 0.025 / 0.000
12.0
mm
1080786 | RB-080-040-120-A --- Bore Reducers - 8x4x12 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-080-040-120-A Bore Reducers - 8x4x12 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $5.00 AUD
Regular price $9.50 AUD Sale price $5.00 AUD
Each
8.00
mm
+ 0.013 / - 0.025
4.00
mm
+ 0.025 / 0.000
12.0
mm
1080786 | RB-080-040-120-A --- Bore Reducers - 8x4x12 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-080-040-120-A Bore Reducers - 8x4x12 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $5.00 AUD
Regular price $9.50 AUD Sale price $5.00 AUD
Each
9.53
mm
+ 0.013 / - 0.000
6.00
mm
+ 0.025 / 0.000
12.0
mm
1089611 | RB-095-060-120-A --- Bore Reducers - 9.53x6x12 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-095-060-120-A Bore Reducers - 9.53x6x12 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Each
9.53
mm
+ 0.013 / - 0.000
6.00
mm
+ 0.025 / 0.000
12.0
mm
1089611 | RB-095-060-120-A --- Bore Reducers - 9.53x6x12 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-095-060-120-A Bore Reducers - 9.53x6x12 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Each
9.53
mm
+ 0.013 / - 0.000
6.00
mm
+ 0.025 / 0.000
19.0
mm
1089613 | RB-095-060-190-A --- Bore Reducers - 9.53x6x19 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-095-060-190-A Bore Reducers - 9.53x6x19 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $9.00 AUD
Regular price $17.10 AUD Sale price $9.00 AUD
Each
9.53
mm
+ 0.013 / - 0.000
6.00
mm
+ 0.025 / 0.000
19.0
mm
1089613 | RB-095-060-190-A --- Bore Reducers - 9.53x6x19 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-095-060-190-A Bore Reducers - 9.53x6x19 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $9.00 AUD
Regular price $17.10 AUD Sale price $9.00 AUD
Each
10.00
mm
+ 0.013 / - 0.025
5.00
mm
+ 0.025 / 0.000
12.0
mm
1090903 | RB-100-050-120-A --- Bore Reducers - 10x5x12 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-100-050-120-A Bore Reducers - 10x5x12 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $6.00 AUD
Regular price $11.40 AUD Sale price $6.00 AUD
Each
10.00
mm
+ 0.013 / - 0.025
5.00
mm
+ 0.025 / 0.000
12.0
mm
1090903 | RB-100-050-120-A --- Bore Reducers - 10x5x12 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-100-050-120-A Bore Reducers - 10x5x12 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $6.00 AUD
Regular price $11.40 AUD Sale price $6.00 AUD
Each
10.00
mm
+ 0.013 / - 0.025
6.00
mm
+ 0.025 / 0.000
12.0
mm
1090992 | RB-100-060-120-A (2 Pcs) --- Bore Reducers - 10x6x12 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-100-060-120-A (2 Pcs) Bore Reducers - 10x6x12 mm - Aluminium Alloy
1 pack (2 pcs) Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $14.00 AUD
Regular price $26.60 AUD Sale price $14.00 AUD
Per 2
10.00
mm
+ 0.013 / - 0.025
6.00
mm
+ 0.025 / 0.000
12.0
mm
1090992 | RB-100-060-120-A (2 Pcs) --- Bore Reducers - 10x6x12 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-100-060-120-A (2 Pcs) Bore Reducers - 10x6x12 mm - Aluminium Alloy
1 pack (2 pcs) Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $14.00 AUD
Regular price $26.60 AUD Sale price $14.00 AUD
Per 2
10.00
mm
+ 0.03 / - 0.05
6.35
mm
+ 0.03 / - 0.00
8.10
mm
1091041 | RB-100-064-F-081-A (3 Pcs) --- Bore Reducers - 10x6.35x8.1 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: Yes   
Part Number: RB-100-064-F-081-A (3 Pcs) Bore Reducers - 10x6.35x8.1 mm - Aluminium Alloy
1 pack (3 pcs) Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Per 3
10.00
mm
+ 0.03 / - 0.05
6.35
mm
+ 0.03 / - 0.00
8.10
mm
1091041 | RB-100-064-F-081-A (3 Pcs) --- Bore Reducers - 10x6.35x8.1 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: Yes   
Part Number: RB-100-064-F-081-A (3 Pcs) Bore Reducers - 10x6.35x8.1 mm - Aluminium Alloy
1 pack (3 pcs) Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Per 3
12.70
mm
+ 0.013 / - 0.000
9.53
mm
+ 0.025 / 0.000
12.7
mm
1102255 | RB-127-095-127-A --- Bore Reducers - 12.7x9.53x12.7 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-127-095-127-A Bore Reducers - 12.7x9.53x12.7 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $10.00 AUD
Regular price $19.00 AUD Sale price $10.00 AUD
Each
12.70
mm
+ 0.013 / - 0.000
9.53
mm
+ 0.025 / 0.000
12.7
mm
1102255 | RB-127-095-127-A --- Bore Reducers - 12.7x9.53x12.7 mm - Aluminium Alloy
Material: Aluminium Alloy    End Lip: No   
Part Number: RB-127-095-127-A Bore Reducers - 12.7x9.53x12.7 mm - Aluminium Alloy
1 Available Now | Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity
Regular price $10.00 AUD
Regular price $19.00 AUD Sale price $10.00 AUD
Each