Yes, in many cases we can.
Many engineers use McMaster-Carr and MISUMI as their design libraries because CAD models are easy to download. We don’t sell those original brands, but we can often provide dimensionally compatible, cost-effective alternatives.

However, it is very important to distinguish between:

1. Standard parts that can be direct drop-in replacements, and

2. Assemblies that must be replaced as a complete set (rail + block).

For components that follow common ISO/JIS or industry standards, we can usually supply dimensionally equivalent parts:

• Linear shafts and shaft supports

  • Metric and inch linear shafts

  • Shaft supports such as SK / SHF / T-shaped supports

• Linear ball bearings

  • Standard LM / LME series

  • Flanged types LMF / LMK

  • Housed units SC / SCS / SBR blocks

• Ball screw assemblies

  • Standard metric ball screws (e.g. SFU series)

  • With standard end machining for BK/BF, FK/FF, EK/EF supports

  • In many cases, we can match the diameter, lead, support type and nut style to drop into your design

For these standardized parts, a McMaster or MISUMI part number is often enough to create a 1:1 dimensional alternative. Performance (load rating, life) may differ slightly by brand, but fit and function can usually be kept the same.

For linear guides (rail + block) and some proprietary assemblies, “compatible” does not mean you can mix components:

• We can provide dimensionally interchangeable linear guide sets

  • Same rail width, height and mounting hole pattern

  • Same overall block height and reference dimensions

  • Suitable to replace many MISUMI / McMaster branded guides as a set

• ⚠ Critical Warning: Do NOT mix brands on the same rail

  • Even if two brands use the same nominal size (e.g. “HGH25”), the ball groove geometry, contact angle and tolerances are different.

  • You must not buy only our block and mount it on an existing MISUMI, McMaster or other-brand rail (or the opposite).

  • Mixing different brands’ blocks and rails can cause:

    • Very rough motion or jamming

    • Abnormal wear and loss of accuracy

    • In extreme cases, ball cage failure