![[THK] — ER Precision Linear Pack Stainless Slide Unit (ER513~ER1025)](https://img.prosourcemro.com/2026/05/001-1017-1024x779.png)
Linear Bushings
THK
[THK] — ER Precision Linear Pack Stainless Slide Unit (ER513~ER1025)
Family ID: THK-ER
ER type Precision Linear Pack — stainless steel precision-formed, heat-treated and ground slide unit. Balls circulate inside inner ball case between outer rail V-grooves for infinite linear motion. Inner block widths: 13~25mm. Outer rail lengths: 3 standard options per model. Rail length specified on order (+L suffix).
4 product codes available in this family
Product Codes & Specifications
| Product Code | Description | Brand | Spec | ||
|---|---|---|---|---|---|
| ER513 | THK precision linear pack, block W=13mm, rail options 40, 60, 80mm | THK | Block Width: W=13mm | Block Height: M=4.5mm | Outer Rail Lengths: 40, 60, 80mm | Dynamic Load Rating: C=54.9N | Static Load Rating: C0=72.5N | Material: Stainless steel (precision formed, heat-treated, ground) | Motion: Infinite linear via ball circulation in V-groove rail | Rail Length: Specify on order (+L suffix, e.g. ER616 C1 +95L) | ||
| ER616 | THK precision linear pack, block W=15.6mm, rail options 45, 70, 95mm | THK | Block Width: W=15.6mm | Block Height: M=6mm | Outer Rail Lengths: 45, 70, 95mm | Dynamic Load Rating: C=71.6N | Static Load Rating: C0=125N | Material: Stainless steel (precision formed, heat-treated, ground) | Motion: Infinite linear via ball circulation in V-groove rail | Rail Length: Specify on order (+L suffix, e.g. ER616 C1 +95L) | ||
| ER920 | THK precision linear pack, block W=20mm, rail options 50, 80, 110mm | THK | Block Width: W=20mm | Block Height: M=8.5mm | Outer Rail Lengths: 50, 80, 110mm | Dynamic Load Rating: C=144N | Static Load Rating: C0=201N | Material: Stainless steel (precision formed, heat-treated, ground) | Motion: Infinite linear via ball circulation in V-groove rail | Rail Length: Specify on order (+L suffix, e.g. ER616 C1 +95L) | ||
| ER1025 | THK precision linear pack, block W=25mm, rail options 60, 100, 140mm | THK | Block Width: W=25mm | Block Height: M=10mm | Outer Rail Lengths: 60, 100, 140mm | Dynamic Load Rating: C=215N | Static Load Rating: C0=315N | Material: Stainless steel (precision formed, heat-treated, ground) | Motion: Infinite linear via ball circulation in V-groove rail | Rail Length: Specify on order (+L suffix, e.g. ER616 C1 +95L) |
