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DFARS Specialty Metals
High-Load Low-Friction Telescoping Slides
With a row of crossed-roller bearings on each side of the rail, these slides have over twice the load capacity of standard low-friction slides and are better for handling shock loads. Use them for short-travel, high-speed applications where low-friction performance is a must.
Travel length is the total distance the carriage travels in both directions. For example, a slide with a 6" travel length travels 3" in each direction.
Note: Capacities listed are for horizontal mounting. If side mounted, load capacities are cut in half.
Inch
Carriage Mounting | Rail Mounting | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rail Lg. | Rail Ht. | Travel Lg. | Dynamic Load Cap., lbs. | Carriage Wd. | O'all Ht. | Max. Temp., °F | No. of Holes | Hole Thread Size  | No. of Holes | For Fastener Thread Size | Mounting Fasteners Included | Each | |
Aluminum Carriage and Rail | |||||||||||||
1/4" Rail Wd. | |||||||||||||
| 1.06" | 0.19" | 0.5" | 30 | 0.56" | 0.32" | 180° | 4 | 2-56 | 2 | 2-56 | No | 6257K21 | 0000000 |
0.38" Rail Wd. | |||||||||||||
| 1.06" | 0.25" | 0.5" | 45 | 0.75" | 0.41" | 180° | 4 | 4-40 | 2 | 4-40 | No | 6257K22 | 000000 |
| 2.06" | 0.25" | 1" | 75 | 0.75" | 0.41" | 180° | 4 | 4-40 | 2 | 4-40 | No | 6257K24 | 000000 |
1/2" Rail Wd. | |||||||||||||
| 1.56" | 0.31" | 0.75" | 110 | 1.06" | 0.53" | 180° | 4 | 6-32 | 2 | 6-32 | No | 6257K16 | 000000 |
| 2.56" | 0.31" | 1.5" | 130 | 1.06" | 0.53" | 180° | 4 | 6-32 | 2 | 6-32 | No | 6257K25 | 000000 |
| 3.56" | 0.31" | 2" | 220 | 1.06" | 0.53" | 180° | 4 | 6-32 | 2 | 6-32 | No | 6257K28 | 000000 |
| 4.56" | 0.31" | 3" | 260 | 1.06" | 0.53" | 180° | 4 | 6-32 | 2 | 6-32 | No | 6257K29 | 000000 |
| 6" | 0.31" | 4" | 280 | 1.06" | 0.53" | 180° | 4 | 6-32 | 2 | 6-32 | No | 6257K2 | 000000 |
| 8" | 0.31" | 6" | 290 | 1.06" | 0.53" | 180° | 4 | 6-32 | 2 | 6-32 | No | 6257K3 | 000000 |
| 10" | 0.31" | 8" | 320 | 1.06" | 0.53" | 180° | 4 | 6-32 | 2 | 6-32 | No | 6257K4 | 000000 |
Metric
Carriage Mounting | Rail Mounting | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rail Lg., mm | Rail Ht., mm | Travel Lg., mm | Dynamic Load Cap., lbs. | Carriage Wd., mm | O'all Ht., mm | Max. Temp., °F | No. of Holes | Hole Thread Size | No. of Holes | For Fastener Thread Size | Mounting Fasteners Included | Each | |
Aluminum Carriage and Rail | |||||||||||||
6.4 mm Rail Wd. | |||||||||||||
| 27 | 4.7 | 13 | 30 | 14.2 | 8 | 240° | 4 | M2 | 2 | M2 | No | 6257K51 | 0000000 |
9.5 mm Rail Wd. | |||||||||||||
| 27 | 6.3 | 13 | 45 | 19 | 10 | 240° | 4 | M3 | 2 | M3 | No | 6257K54 | 000000 |
| 52 | 6.3 | 25 | 75 | 19 | 10 | 240° | 4 | M3 | 2 | M3 | No | 6257K55 | 000000 |
| 78 | 6.3 | 50 | 90 | 19 | 10 | 240° | 4 | M3 | 2 | M3 | No | 6257K56 | 000000 |
| 103 | 6.3 | 75 | 95 | 19 | 10 | 240° | 4 | M3 | 2 | M3 | No | 6257K57 | 000000 |
12.7 mm Rail Wd. | |||||||||||||
| 40 | 7.9 | 19 | 110 | 26.9 | 13 | 240° | 4 | M4 | 2 | M4 | No | 6257K58 | 000000 |
| 65 | 7.9 | 38 | 130 | 26.9 | 13 | 240° | 4 | M4 | 2 | M4 | No | 6257K61 | 000000 |
| 90 | 7.9 | 50 | 220 | 26.9 | 13 | 240° | 4 | M4 | 2 | M4 | No | 6257K62 | 000000 |
| 116 | 7.9 | 75 | 260 | 26.9 | 13 | 240° | 4 | M4 | 2 | M4 | No | 6257K63 | 000000 |
Telescoping Rail Sets
Create your own positioning table or telescoping slide.
Steel rails have crossed-roller bearings that handle high loads for their small size.
O'all, mm | Mounting | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Rail Lg., mm | Travel Lg., mm | Dynamic Load Cap., lbs. | Wd. | Ht. | Max. Temp., °F | No. of Holes per Rail | Hole Thread Size | Fasteners Included | Includes | Each | |
Steel Rails | |||||||||||
| 75 | 50 | 290 | 18 | 8 | 175° | 3 | M4 | No | Four Rails Two Roller Bearing Cages Eight End Stops | 6500K16 | 0000000 |
| 100 | 70 | 380 | 18 | 8 | 175° | 4 | M4 | No | Four Rails Two Roller Bearing Cages Eight End Stops | 6500K17 | 000000 |
| 150 | 100 | 580 | 18 | 8 | 175° | 6 | M4 | No | Four Rails Two Roller Bearing Cages Eight End Stops | 6500K18 | 000000 |
Telescoping Slides
Good for use in pick-and-place applications, machine tool doors, and telescopic industrial press arms, these rugged slides are designed to carry heavy loads.
Note: Capacities listed are for side mounting. If mounted horizontally or upside down, load capacities are 70% of those listed.
C Rail Profile
C Rail Profile
Carriage Mounting | Rail Mounting | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Rail Lg., mm | Travel Lg., mm | Dynamic Load Cap., lbs. | O'all Ht., mm | Max. Temp., °F | No. of Holes | Hole Thread Size | No. of Holes | For Fastener Thread Size | Mounting Fasteners Included | Each | |
Zinc-Plated Steel Carriage and Steel Rail | |||||||||||
22 mm Rail Wd. | |||||||||||
| 130 | 76 | 70 | 11 | 335° | 2 | M4 | 2 | M4 | No | 8379K31 | 0000000 |
| 210 | 111 | 160 | 11 | 335° | 3 | M4 | 3 | M4 | No | 8379K32 | 000000 |
| 370 | 196 | 287 | 11 | 335° | 5 | M4 | 5 | M4 | No | 8379K33 | 000000 |
28 mm Rail Wd. | |||||||||||
| 290 | 148 | 434 | 13 | 335° | 4 | M5 | 4 | M5 | No | 8379K35 | 000000 |
| 450 | 232 | 664 | 13 | 335° | 6 | M5 | 6 | M5 | No | 8379K36 | 000000 |
| 610 | 315 | 893 | 13 | 335° | 8 | M5 | 8 | M5 | No | 8379K37 | 000000 |
| 770 | 399 | 1,123 | 13 | 335° | 10 | M5 | 10 | M5 | No | 8379K38 | 000000 |
| 930 | 475 | 1,424 | 13 | 335° | 12 | M5 | 12 | M5 | No | 8379K39 | 000000 |
| 1,010 | 517 | 1,539 | 13 | 335° | 13 | M5 | 13 | M5 | No | 8379K11 | 000000 |
43 mm Rail Wd. | |||||||||||
| 610 | 313 | 1,666 | 22 | 335° | 8 | M8 | 8 | M8 | No | 8379K312 | 000000 |
| 930 | 483 | 2,485 | 22 | 335° | 12 | M8 | 12 | M8 | No | 8379K314 | 000000 |
| 1,010 | 518 | 2,795 | 22 | 335° | 13 | M8 | 13 | M8 | No | 8379K315 | 000000 |
| 1,330 | 688 | 3,613 | 22 | 335° | 17 | M8 | 17 | M8 | No | 8379K316 | 000000 |
| 1,490 | 758 | 4,236 | 22 | 335° | 19 | M8 | 19 | M8 | No | 8379K317 | 000000 |
Chrome-Plated Steel Carriage and Chrome-Plated Steel Rail | |||||||||||
35 mm Rail Wd. | |||||||||||
| 210 | 129 | 578 | 17 | 212° | 3 | M6 | 3 | M6 | No | 8379K18 | 000000 |
| 290 | 158 | 898 | 17 | 212° | 4 | M6 | 4 | M6 | No | 8379K19 | 000000 |
| 370 | 200 | 967 | 17 | 212° | 5 | M6 | 5 | M6 | No | 8379K21 | 000000 |
| 450 | 254 | 895 | 17 | 212° | 6 | M6 | 6 | M6 | No | 8379K22 | 000000 |
| 530 | 284 | 1,047 | 17 | 212° | 7 | M6 | 7 | M6 | No | 8379K23 | 000000 |
| 610 | 326 | 1,072 | 17 | 212° | 8 | M6 | 8 | M6 | No | 8379K24 | 000000 |
| 690 | 367 | 1,094 | 17 | 212° | 9 | M6 | 9 | M6 | No | 8379K25 | 000000 |
Double C Rail Profile
Double C Rail Profile
Carriage Mounting | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rail Lg., mm | Travel Lg., mm | Dynamic Load Cap., lbs. | O'all Ht., mm | Max. Temp., °F | No. of Holes | Hole Thread Size | Mounting Fasteners Included | Each | |
Zinc-Plated Steel Carriage and Zinc-Plated Steel Rail | |||||||||
28 mm Rail Wd. | |||||||||
| 130 | 148 | 52 | 26 | 335° | 2 | M5 | No | 4556N11 | 0000000 |
| 210 | 232 | 97 | 26 | 335° | 3 | M5 | No | 4556N12 | 000000 |
| 290 | 296 | 172 | 26 | 335° | 4 | M5 | No | 4556N13 | 000000 |
| 450 | 464 | 262 | 26 | 335° | 6 | M5 | No | 4556N15 | 000000 |
| 530 | 548 | 248 | 26 | 335° | 7 | M5 | No | 4556N16 | 000000 |
| 610 | 633 | 214 | 26 | 335° | 8 | M5 | No | 4556N17 | 000000 |
43 mm Rail Wd. | |||||||||
| 370 | 416 | 292 | 44 | 335° | 5 | M8 | No | 4556N47 | 000000 |
| 450 | 486 | 410 | 44 | 335° | 6 | M8 | No | 4556N48 | 000000 |
| 530 | 556 | 533 | 44 | 335° | 7 | M8 | No | 4556N49 | 000000 |
| 610 | 626 | 659 | 44 | 335° | 8 | M8 | No | 4556N51 | 000000 |
| 690 | 726 | 694 | 44 | 335° | 9 | M8 | No | 4556N52 | 000000 |
| 850 | 866 | 640 | 44 | 335° | 11 | M8 | No | 4556N54 | 00000000 |
| 1,090 | 1,106 | 503 | 44 | 335° | 14 | M8 | No | 4556N57 | 00000000 |