About Linear Bearings
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Mounted Linear Bearings for Ball Splines
A flange with mounting holes makes it easy to attach a load to these bearings. Create a compact linear and rotary motion system for robots and other applications requiring complex, fast movements, by combining them with ball splines. These bearings move smoothly and precisely even at high speeds along ball splines while grooves on the ball spline transmit rotary power. Clip a retaining ring (not included) into the groove on these bearings to position them in your system.
Splines are alloy steel for high strength and wear resistance. They're hardened only on the outside, so they stand up to repeated motion while keeping their center soft enough to absorb stress from shifting loads. Those with a step-down end have a shoulder near the end to stop gears, sprockets, and bearings.
For technical drawings and 3-D models, click on a part number.
Groove | Mounting Holes | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Spline Dia., mm | For No. of Splines | Overall Lg., mm | Flange OD, mm | Bolt Circle Dia., mm | OD, mm | Dynamic Load Capacity, lbs. | Static Load Capacity, lbs. | Max. Dynamic Torque, in.-lbs. | Max. Static Torque, in.-lbs. | Max. Temperature, ° F | With Retaining Ring Grooves | Wd., mm | Dia., mm | No. of | Thread Size  | Each | |
| 23 | 4 | 70 | 60 | 47 | 37 | 2,750 | 3,600 | 1,433 | 2,115 | 176° | Yes | 3.5 | 36.1 | 4 | M5 × 0.8 mm | 00000000 | 0000000 |
Step | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Dia., mm | No. of Splines | Lg., mm | Spline Lg., mm | Root Dia., mm | Dia., mm | Lg., mm | Material | Each | |
Splined End × Step-Down End | |||||||||
| 23 | 4 | 350 | 200 | 20.6 | 20 | 150 | 52100 Alloy Steel | 00000000 | 0000000 |
Metric Press-Fit Drill Bushings with Head
Even under extreme drilling pressure, these metric bushings won't press through your jig plate. A flanged head on the top of the bushing acts as a stop, preventing it from moving as you push down your drill bit, reamer, or other cutting bit. Drill bushings ensure accurate, consistent cuts and drilled holes from one part to the next. They sometimes also work as spacers, shims, and machinery bushings. Made of hardened, ground steel, these bushings hold their shape and resist wear over time. The flanged head protects your jig plate from damage caused by heavy use.
Although it's no longer an active standard, DIN 172 is still a common reference point for making sure parts are compatible with other parts and tools.
These bushings work in both countersunk and standard drill holes. To install, place the bushing inside the hole in your jig. A chamfered edge on the bottom of the bushing helps center the bushing in the hole. Once centered, press the bushing into the hole with a hydraulic or lever press.
For technical drawings and 3-D models, click on a part number.
Head | Tolerance | Each | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OD, mm | Lg., mm | OD, mm | Thick., mm | ID, mm | OD, mm | Lg., mm | Drill Bushing Type | Material | Hardness | Specifications Met | 1-5 | 6-11 | 12-Up | |
23 mm ID | ||||||||||||||
| 35 | 15 | 39 | 5 | 0.02 to 0.041 | 0.017 to 0.033 | -0.2 to 0.2 | H | Steel | Rockwell C61 | DIN 172 | 000000000 | 000000 | 000000 | 000000 |
| 35 | 31 | 39 | 5 | 0.02 to 0.041 | 0.017 to 0.033 | -0.3 to 0.3 | H | Steel | Rockwell C61 | DIN 172 | 000000000 | 00000 | 00000 | 00000 |
| 35 | 40 | 39 | 5 | 0.02 to 0.041 | 0.017 to 0.033 | -0.3 to 0.3 | H | Steel | Rockwell C61 | DIN 172 | 000000000 | 00000 | 00000 | 00000 |