IKO BWU12-30 (BWU1230) High Rigidity Precision Linear Slide Unit
Two rows of steel balls in four‑point contact with raceways; integrated table‑bed design, non‑recirculating ball retainer, all stainless steel construction.
Model: IKO BWU12-30 (also marked BWU1230)Series: BWU Series (High Rigidity Precision Linear Slide Unit, limited‑stroke compact ball slide)Core Structure: Two rows of steel balls in four‑point contact with raceways; integrated table‑bed design, non‑recirculating ball retainer, all stainless steel construction.Source: IKO Nippon Thompson Official Catalog (CAT‑1555E, Linear Motion Rolling Guide – BWU Series).
Official Specifications (mm / N / N·m, from IKO Global Catalog)
Nominal Dimensions
- W (Table Width): 12
- H (Assembly Height): 4.5
- H1 (Table Thickness): 1.0
- N (Bed Height): 3.0
- L (Overall Length): 30
- Maximum Stroke Length: 20 mm
- Weight (Ref.): 0.0095 kg
Table Mounting Dimensions
- L1 (Table Mounting Length): 15 mm
- M (Table Mounting Screw): M2
- Maximum Fixing Thread Depth: 1.1 mm
- t (Table Mounting Hole Depth): 0.45 mm
Bed Mounting Dimensions
- W3 (Bed Mounting Width): 6 mm
- H2 (Bed Base Height): 2.8 mm
- P (Bed Mounting Hole Pitch): 15 mm
- d1 (Bed Screw Hole Diameter): 2.4 mm
- d2 (Bed Counterbore Diameter): 4.0 mm
- h (Bed Counterbore Depth): 1.5 mm
- n (Bed Edge Lip): 1 mm
Load Ratings (Official Values)
- Basic Dynamic Load Rating (C): 442 N
- Basic Static Load Rating (C₀): 635 N
- Allowable Load (F): 212 N
- Static Moment Rating (T₀): 2.0 N·m
Key Performance Parameters
- Operating Temperature: -20°C to +100°C (continuous)
- Maximum Speed: ≤30 m/min
- Material: All steel components = SUS440C stainless steel (corrosion‑resistant, cleanroom‑compatible)
- Preload: Factory‑set standard preload
- Lubrication: No pre‑packed grease; clean anti‑rust oil before use, apply lithium‑soap base grease to raceways
- Dust Protection: No seal; cover with protective case in non‑clean environments
Key Official Features
- Ultra‑Compact & High Rigidity: Two‑row four‑point contact ball structure delivers stable rigidity and precision under multi‑directional / fluctuating loads, ideal for limited‑stroke micro‑positioning.
- Full Stainless Steel Construction: All parts in SUS440C stainless steel, excellent corrosion resistance, suitable for cleanrooms, medical, optical and precision instruments.
- High Precision & Smooth Motion: Simultaneous dual‑raceway grinding minimizes error; non‑recirculating retainer ensures low‑friction, stick‑slip‑free linear movement.
- Simple Installation: Integrated table‑bed design, standardized mounting dimensions, direct mounting without complex assembly; includes M2×4 bed mounting screws.
- No Synthetic Resin Parts: Suitable for high‑temperature and cleanroom environments, no outgassing or particle emission.
