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Accuracy Standards

 
  1. We have achieved high precision/quality processings such as super finishing post and honing bush etc. and reduced initial abrasion amount. 
  2. Dimension is displayed on main part. We also consider the compatibility of the parts.
  3. We accommodate your request for high precision part more quickly etc. with reliable quality and quick delivery.
  4. We offer the material processed carefully with high precision, and establish the system by which stable quality product is always supplied.

Circularity/ cylindricity of bush for stripper/die set


Inspection item
Allowance
Circularity/cylindricity of post for stripper/die set
■Circularity   ■Cylindricity
Post diameter Allowance Length Up to 200 More than 200 and up to 250 More than 250 and up to 300
Post diameter
10~28 1μm 10~28 2μm 3μm 3μm
31~56 1.5μm 31~56 3μm 3μm 4μm
 

Circularity/cylindricity of post for stripper/die set

Inspection item Allowance
Circularity/cylindricity of bush for stripper/die set For stripper/LBA・LBB・LRA・LRB
■Circularity   ■Cylindricity
Bush inner diameter Allowance Bush inner diameter Allowance
10~16 1.5μm 10~16 2μm
20~25 3μm 20~25 4μm

For die set
■Circularity   ■Cylindricity
Bush inner diameter Allowance Bush inner diameter Allowance
19~30 1.5μm 19~30 2μm
31~58 2.5μm 31~58 3μm
60~70 3μm 60~70 5μm

Clearance of plain guide

Inspection item Allowance
Clearance  of plain guide(Bush inner diameter)-(Post diameter)

■For stripper:5±4μm

■Guide set for die set (μm)

Post diameter 19~25 27~32 36~38 40~56
Clearance 5±2 8±2 10±2 12±2

 

Preloaded amount of ball guide

Inspection item Allowance
Preloaded amount of ball guide(Post diameter) + (Ball diameter) x 2 -(Bush inner diameter)

■For stripper 17±4μ m

■Guide set for die set (μm)

Post diameter 19~25 27・28 31~36 37・38 40~56
Preloaded amount 22±2 24±2 28±2 31±2 34±2