Spacer Bush
Bored spacer bush for axial clearance setting in system assemblies.
This is a dimension schematic, not a manufacturing drawing. Dimensions match the catalog data; request a quote with the part code to confirm before production.
Code & Size Table
Code, dimensions and tolerance for all 10 variants.
| Code | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| OTOB-SPB-05 | 6 | 8 | ⌀3 | h9 · ⌀6: 0/−0.030 | plain spacer bush |
| OTOB-SPB-06 | 8 | 10 | ⌀4 | h9 · ⌀8: 0/−0.036 | plain spacer bush |
| OTOB-SPB-07 | 10 | 14 | ⌀5 · 2 steps | h9 · ⌀10: 0/−0.036 | flanged spacer bush |
| OTOB-SPB-08 | 10 | 12 | ⌀6 | h9 · ⌀10: 0/−0.036 | plain spacer bush |
| OTOB-SPB-09 | 12 | 16 | ⌀6 · 2 steps | h9 | flanged spacer bush |
| OTOB-SPB-10 | 12 | 14 | ⌀8 | h9 · ⌀12: 0/−0.043 | plain spacer bush |
| OTOB-SPB-11 | 14 | 16 | ⌀8 | h9 · ⌀14: 0/−0.043 | plain spacer bush |
| OTOB-SPB-12 | 16 | 19 | ⌀10 · 2 steps | h9 · ⌀16: 0/−0.043 | flanged spacer bush |
| OTOB-SPB-13 | 18 | 18 | ⌀12 | h9 · ⌀18: 0/−0.043 | plain spacer bush |
| OTOB-SPB-14 | 20 | 22 | ⌀12 · 2 steps | h9 | flanged spacer bush |
Prices are for approved members.
Material & Tolerance
The standard material is listed below; also available in steel, stainless, brass and aluminium. Dimensions in mm; tolerances machined to ISO. Deviations (mm) are given for the nominal diameter according to the ISO 286-2 tables; thread tolerances (6g/6H) are to ISO 965. For custom sizes/tolerances, contact us with the part code.
Manufacturing Scope
Spacer Bush is a Automotive Precision Parts family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀6–20 mm, lengths 8–22 mm, standard material Aluminium (also steel, stainless steel or brass). Every variant's part code, dimension and tolerance is listed below; request a quote with the code you need.
The family is machined from ⌀20 mm bar stock; its longest variant is OTOB-SPB-14 at 22 mm. The family is produced by turning alone. Bores in this family run ⌀3–12 mm. All of it is completed in a single setup, without the part leaving the machine.
The variant with the highest length-to-diameter ratio is OTOB-SPB-07: 14 mm long at ⌀10 mm, L/D 1.4. A short, rigid body: what governs the result here is not deflection but diameter tolerance and surface finish.
Variants are machined to h9 tolerance; the smallest is OTOB-SPB-05 (⌀6 mm) and the largest OTOB-SPB-14 (⌀20 mm). The family includes bored, multi-step variants. Custom sizes, tolerances or materials are produced to the part code on request.
Need a size that isn't listed? We machine to your drawing — CNC contract machining. How these parts are made: What is a Swiss-type lathe?
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