THK model number configurations differ depending on the model features. Refer to the corresponding sample model number confi guration.
THK models SHS, SSR, SVR/SVS, SHW, HSR, SR, NR/NRS-X, NR/NRS, HRW, JR, NSR-TBC, HSR-M1, SR-M1 and HSR-M2
| Model No. | Type of LM block | Number of LM blocks used on the same rail | With QZ lubricator | Contamination protection accessory symbol (1) | Radial clearance symbol (2) | LM block with surface treatment | LM block special feature symbol | LM rail length (in mm) | Accuracy symbol (3) | With steel tape | Symbol for LM rail jointed use | LM rail with surface treatment | LM rail special feature symbol | - | Symbol for No. of rails used on the same plane |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SHS25 | LC | 2 | QZ | KKHH | C0 | F | S | +1200L | P | Z | T | F | S | - | Ⅱ |
1, Contamination protection accessory symbol
Symbols for Seals and Metal Scraper
| Symbol | Confi guration of seal and metal scraper |
|---|---|
| No Symbol | Without seal |
| UU | End seal |
| SS | With end seal + side seal + inner seal * |
| DD | With double seals + side seal + inner seal * |
| ZZ | With end seal + side seal + inner seal * + metal scraper |
| KK | With double seals + side seal + inner seal * + metal scraper |
*Some models are not equipped with inner seals.
Symbols for QZ Lubricator and Laminated Contract Scraper LaCS
| Symbol | Confi guration of options | Example |
|---|---|---|
| **HH | (Seal and metal scraper) + LaCS | UUHH |
| **HHYY | (Seal and metal scraper) + LaCS + side scraper | DDHHYY |
| QZ** | With QZ + (seal and metal scraper) | QZZZ |
| QZ**HH | With QZ + (seal and metal scraper) + LaCS | QZZZHH |
| QZ**HHYY | With QZ + (seal and metal scraper) + LaCS + side scraper | QZKKHHYY |
Note1) ** in the table represents the symbol for a seal and metal scraper.
Note2) Those models equipped with QZ Lubricator cannot have a grease nipple. When desiring a grease nipple for a model attached with QZ, contact THK.
Symbols for Light-Resistance Contact Seal LiCS
| Symbol | Confi guration of options |
|---|---|
| GG | LiCS |
| PP | With LiCS + side seal + inner seal * |
| QZGG | With QZ + LiCS |
| QZPP | With QZ + LiCS + side seal + inner seal * |
* Some models are not equipped with inner seals.
Note) Those models equipped with QZ Lubricator cannot have a grease nipple. When desiring a grease nipple for a model attached with QZ, contact THK.
High Chemical Resistance Fluorine Seal FS Symbol
| Symbol | Confi guration of options |
|---|---|
| F2 | Fluorine seals + side seals + inner seals |
| FZ2 | Fluorine seals + side seals + inner seals + metal scrapers |
| FJ2 | Fluorine seals + side seals + inner seals + protectors |
| F4 | Fluorine seals (double) + side seals + inner seals |
| FZ4 | Fluorine seals (double) + side seals + inner seals + metal scrapers |
| FJ4 | Fluorine seals (double) + side seals + inner seals + protectors |
| QZF2 | Fluorine seals + side seals + inner seals + QZ |
| QZFZ2 | Fluorine seals + side seals + inner seals + metal scrapers + QZ |
| QZFJ2 | Fluorine seals + side seals + inner seals + QZ + protectors |
| QZF4 | Fluorine seals (double) + side seals + inner seals + QZ |
| QZFZ4 | Fluorine seals (double) + side seals + inner seals + metal scrapers + QZ |
| QZFJ4 | Fluorine seals (double) + side seals + inner seals + QZ + protectors |
Symbols for Protector
Supported models: SVR/SVS, SRG, NR/NRS, and NR-X/NRS-X
| Symbol | Confi guration of options |
|---|---|
| JJHH | With End seal + side seal + inner seal * + LaCS + protector (also has a metal scraper function) |
| TTHH | With Double seals + side seal + inner seal * + LaCS + protector (also has a metal scraper function) |
| JJHHYY | With End seal + side seal + inner seal * + LaCS + protector (also has a metal scraper function) + side scraper |
| TTHHYY | With Double seals + side seal + inner seal * + LaCS + protector (also has a metal scraper function) + side scraper |
| QZJJHH | With QZ + end seal + side seal + inner seal * + LaCS + protector (also has a metal scraper function) |
| QZTTHH | With QZ + double seals + side seal + inner seal * + LaCS + protector (also has a metal scraper function) |
| QZJJHHYY | With QZ + end seal + side seal + inner seal * + LaCS + protector (also has a metal scraper function) + side scraper |
| QZTTHHYY | With QZ + double seals + side seal + inner seal * + LaCS + protector (also has a metal scraper function) + side scraper |
* Some models are not equipped with inner seals.
Note1) HH type (with LaCS) for models SVR/SVS, SRG, NR/NRS, and NR-X/NRS-X comes with a protector. The protector also acts as a metal scraper. Contact THK if you want to use the Protector with other options.
Note2) Those models equipped with QZ Lubricator cannot have a grease nipple. When desiring a grease nipple for a model attached with QZ, contact THK.
2, Radial clearance symbol
- No symbol: Normal
- C1: Light preload
- C0: Medium preload
3, Accuracy symbol
- No symbol: Normal grade
- H: High accuracy grade
- P: Precision grade
- SP: Super precision grade
- UP: Ultra precision grade
Note1) This THK model number above indicates that a single-rail unit constitutes one set. (i.e., required number of sets when 2 rails are used in parallel is 2 at a minimum.)
Those models equipped with QZ Lubricator cannot have a grease nipple. When desiring a grease nipple for a model attached with QZ, contact THK
Model EPF
| Model No. | Guaranteed stroke (in mm) | LM rail length (in mm) | Accuracy symbol | Rail material |
|---|---|---|---|---|
| EPF7M | 16 | +55L | P | M Stainless steel (standard) |
Note) This model number indicates that a single-rail unit constitutes one set.