OJTECH

MACHINERY & EQUIPMENT

Custom Machinery Parts and Low-Volume Replacements

OUJI manufactures shafts, housings, bearing blocks, plates and non-standard replacement parts from drawings for machine builders, maintenance teams and equipment manufacturers.

  • One-off replacement support
  • Machining and fabrication
  • Wear and fit control
Industrial machinery and manufacturing equipment
12 hoursRFQ drawing review
±0.01 mmTypical CNC tolerance
1 pieceOrder support
From 3 daysQualified lead time

WHY OUJI

Built Around the Drawing, Not a Standard Part

Machinery projects often combine one-off replacement needs with demanding fits and secondary processes. OUJI keeps the complete route under one technical review.

01

Practical replacement-part review

Existing drawings, revised drawings and reference samples can be reviewed for a manufacturable replacement route.

02

One coordinated process route

CNC machining, sheet metal, 3D printing, finishing and inspection can be coordinated around one project.

03

Fit and wear surfaces prioritized

Bearing seats, sliding faces, threads and hardened zones are identified before machining and finishing.

04

From one part to repeat orders

OUJI supports one-off prototypes, low-volume batches and controlled repeat production from the same drawings.

TYPICAL PARTS

Machinery Parts We Commonly Support

OUJI supports both newly designed equipment components and difficult-to-source legacy parts.
01

Shafts and spindles

Turned diameters, shoulders, threads and concentric features.

02

Bearing blocks

Bores, mounting faces and aligned fastening patterns.

03

Machine plates

Large hole patterns, pockets, datums and flat mounting surfaces.

04

Housings and covers

Machined or fabricated structures for protection and alignment.

05

Bushings and sleeves

Wear components with material, hardness and fit review.

06

Legacy replacement parts

Low-volume parts recreated from usable drawings or samples.

MANUFACTURING ROUTES

Use the Process That Fits the Part

Many equipment parts require more than one operation, so machining, welding, heat treatment and finishing are planned together.

COMMON MATERIALS

Material Choice Follows Load, Environment and Finish

  • Carbon and tool steel
  • Stainless steel
  • Aluminum
  • Bronze and brass
  • POM / Nylon / PEEK

QUALITY FOLLOW-UP

Inspect the Fits That Determine Machine Life

Inspection emphasis follows the bearing, alignment, wear and installation requirements shown on the drawing.
  1. 01

    Bearing and seal fits

    Critical bores and shafts checked with an agreed measurement method.

  2. 02

    Coaxiality and runout

    Rotating features reviewed from the functional datum axis.

  3. 03

    Threads and interfaces

    Thread standard, depth and mating features confirmed before release.

  4. 04

    Hardness and finish

    Heat treatment and surface requirements coordinated with final checks.

START WITH YOUR DRAWINGS

Get a Practical Manufacturing Review

Send the 3D model, 2D drawing, material, quantity and delivery target.
Send Drawings for Quote