Support Unit For Ball screw

Support unit for ball screw helps to support each shaft-ends of

ball screw. We, S.I.M provides diverse options according to sizes,

loads and purposes for our customers’ best convenience.

Support Unit (For TM Screw)

SUPPORT UNIT FOR TM SCREW – Classification
  • Load Support: Designed to support static (constant) loads in the radial direction.
  • Durability: The double-row bearing structure increases fatigue life and ensures stable performance.
  • Precision: Minimizes center misalignment of the bearing to achieve high positioning accuracy.
SUPPORT UNIT FOR TM SCREW – Classification

Fixed Side

  • Easy screw fastening with simple lever operation of the clamping block
  • All models are preloaded for stable support without vibration
  • Equipped with an oil seal as standard to minimize lubrication loss and provide high dust protection
  • Accompanied by lock-nut and collars (spacer)

Supported Side

  • Accompanied by a deep-groove ball bearing and a snap-ring
  • Compatible with ball screw support unit EF series
Recommended Shape of TM Screw Shaft-end (Fixed-side)
Model Bearing d A B Lock-nut E F S
Model Size
M × pitch
ET-8 608ZZ 10~12 8 6 RN-8 M8 x 1/0.75 35 21.5 10
ET-10 6000ZZ 10~15 10 8 RN-10 M10 x 1/0.75 36 29.5 11
ET-12 6001ZZ 14~18 12 10 RN-12 M12 x 1 36 29.5 11
ET-15 6002ZZ 20 15 12 RN-15 M15 x 1 44 34 13
ET-20 6204ZZ 25~28 20 17 RN-20 M20 x 1 64 44 17
How to Order

Fixed Side

Supported Side

Surface
Treatement
Mark Surface Treatment
no mark Black Oxide
RA Low temperature Black Chrome Plating (Raydent)