Page 346 - MiSUMi 2025

Economy series Precautions of Assembling Precautions of Assembling Economy series
Support Units Support Units

QWhat is “Support Units”?
These are dedicated bearing components designed to be used exclusively in combination with ball screws.
The support units in the Economy series offer two types of bearings for the fixed side.
For applications involving high axial loads, select a product equipped with angular contact bearings.
For low to medium axial loads, choose a product with radial bearings.
Ball Screw
Support Units (Fixed Side)
Table Support Units (Fixed Side)
Linear guide
Height adjustment block

3 Motor mounting bracket 3

Ball Screws / Lead Screws Support Units (Support Side) Lead Screws Ball Screws /
Support Units (Support Side)

QAccessory Assembling Chart
Bearing Nut, Set Piece QIncluded Collar QIncluded Bearing Nut
Retaining Ring Collar m C F
Rolled Ball Screws +0.1 M d D2 Screws Rolled Ball
Bearing

V 0
P.03-009 Support Side Support Units Fixed Side Support Units L D±0.1 B P.03-009
Precision Ball Screws QPrecautions of assembling Support Units Screws Precision Ball

Improper assembly of support units may lead to reduced service life and accuracy, potentially preventing the machine from performing as
P.03-027 Assembly of Support Units P.03-027
intended. Therefore, careful attention must be paid during installation.
Ball Screw Supports / Motor Brackets Below are the procedures and precautions for assembly: Motor Brackets Ball Screw Supports /
1. Preparation Before Assembly

P.03-047 Perform the assembly in a clean, dry environment free from dust and moisture. Avoid locations with significant temperature fluctuations. P.03-047
Ensure the workspace is clean and prepare all necessary tools on the workbench.
Lead Screws 2. Inspection of Shaft and Support Units Lead Screws
Check that there is no dust, debris, burrs, or foreign matter on the shaft surface or inside the bearing bore of the support unit. If burrs or
sharp edges are present, remove them using an oil stone or similar tool, and thoroughly clean away any chips or residue.
P.03-058 3. Mounting the Support Units onto the Shaft P.03-058
Lead Screw Nuts Prepare the ball screw and support unit. Insert the support unit into the fixed side of the ball screw. Nuts Lead Screw

Precautions during insertion:

P.03-077 Insert straight to avoid galling. (Greasing the shaft can help ensure smooth insertion.) Take care not to damage or displace the oil seal. The P.03-077
ball screw shaft’s lock nut should be temporarily tightened.
Lead Screw Supports Collar is installed on Bearing Nut, Set Piece Supports Lead Screw
Collar
Rolled Ball Screws.

P.03-079 Do not disassemble. P.03-079
Lead Screw Stop Plates / Position Indicators Confirm the deflection. Position Indicators Lead Screw Stop Plates /

P.03-081 P.03-081

03-049 03-050