Product Description
The THK SR30W1SS(GK) is a radial-type LM Guide carriage block from the SR-W series, designed for precision linear motion applications requiring a compact, low-profile profile with high radial load capacity. The block features four rows of precision-ground ball raceways and circulating balls retained by an integrated holding plate, so the balls will not fall out when the block is removed from the rail. It belongs to the GK Global Standard series, meaning the block is available individually for fast interchangeability and maintenance replacement, and it is compatible with any THK SR30 series rail.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | THK |
| Model / Part Number | SR30W1SS(GK) |
| Product Type | Linear Guide Carriage Block (LM Block) |
| Series | SR (Radial Type LM Guide) |
| Block Style | W – Narrow Block with Tapped Holes (Non-Flanged) |
| GK Designation | GK – Global Standard Full Complement Design (Individual Block) |
| Nominal Rail Size | 28 mm (SR30 Rail) |
| Overall Length (Block) | 96.8 mm |
| Block Width | 60 mm |
| Assembly Height | 42 mm |
| Dynamic Load Capacity (C) | 45.6 kN |
| Static Load Capacity (C0) | 64.4 kN |
| Seal Type | SS – End Seal + Side Seal + Inner Seal |
| Number of Blocks on Rail | 1 |
| Mounting Direction | Top Surface Mount |
| Mounting Hole Screw Size | M8 × 12 |
| Ball Contact Angle | 90° (Radial Direction) |
| Number of Ball Rows | 4 |
| Bearing / Block Material | Carbon Steel |
| Accuracy Class | Normal Grade |
| Lubrication | THK AFB-LF Grease |
| Weight | 0.8 kg (approx. 1.67 lbs) |
| Measurement Standard | Metric |
| Compatible Rail | THK SR30 Series Rail |
| Ideal Application | Horizontal Guide Units, CNC Machines, Factory Automation |
We warranty all items for 30 days from date of purchase.