LMF..UU / LMK..UU / LMH..UU Series – Flanged Type Linear Ball Bearing
The LMF/LMK/LMH series is our flanged type linear ball bearing, featuring a flange design added to the LM bearing for easy side mounting and fixation. This series is designed for complete assembly interchangeability with mainstream flanged type linear bearing products. Available in round flange (LMF), square flange (LMK), and oval flange (LMH) types, suitable for linear motion applications with limited installation space or requiring side fixation.
Key Features
- Assembly Replacement – Direct replacement of existing same-series bearing bodies in customer equipment
- Three Flange Types – Round flange (LMF), square flange (LMK), and oval flange (LMH) to meet different installation space requirements
- Flange Design – Flange plate facilitates axial fixation, simplifying mounting structure
- Double End Seals (UU) – Seals on both ends effectively prevent dust ingress and contamination
- Low Friction – Steel ball rolling design provides low friction coefficient and smooth motion
- Flexible Installation – Can be secured from the side, suitable for space-constrained applications
Matching an LM, SCS, SBR or SHF unit? See which brands actually build this housing family in our linear bushing interchange chart.
Full Specifications
| Type | Basic load rating | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Round Type | Square Type | H Type | Rows of Ball | Weight (gf) | Radial Tolerance (μm) | Nominal Dynamic load | Nominal Static load | Inner Diameter dr(mm) | Tolerance (μm) |
| LMF6UURFUMOTION.COM | LMK6UU | LMH6UU | 4 | 26.5 | -5 | 200 | 260 | 6 | 0 -9 |
| LMF8UURFUMOTION.COM | LMK8UU | LMH8UU | 4 | 40 | -5 | 260 | 400 | 8 | 0 -9 |
| LMF10UURFUMOTION.COM | LMK10UU | LMH10UU | 4 | 78 | -5 | 370 | 540 | 10 | 0 -9 |
| LMF12UURFUMOTION.COM | LMK12UU | LMH12UU | 4 | 76 | -5 | 410 | 590 | 12 | 0 -9 |
| LMF13UURFUMOTION.COM | LMK13UU | LMH13UU | 4 | 94 | -7 | 500 | 770 | 13 | 0 -9 |
| LMF16UURFUMOTION.COM | LMK16UU | LMH16UU | 5 | 134 | -7 | 770 | 1170 | 16 | 0 -10 |
| LMF20UURFUMOTION.COM | LMK20UU | LMH20UU | 5 | 180 | -9 | 860 | 1370 | 20 | 0 -10 |
| LMF25UURFUMOTION.COM | LMK25UU | LMH25UU | 6 | 340 | -9 | 980 | 1560 | 25 | 0 -10 |
| LMF30UURFUMOTION.COM | LMK30UU | LMH30UU | 6 | 460 | -9 | 1560 | 2740 | 30 | 0 -10 |
| LMF35UURFUMOTION.COM | LMK35UU | —— | 6 | 895 | -13 | 1660 | 3130 | 35 | 0 -12 |
| LMF40UURFUMOTION.COM | LMK40UU | —— | 6 | 1054 | -13 | 2150 | 4010 | 40 | 0 -12 |
© RFU Motion. Specifications subject to change without notice.
For the latest specs, please contact us.
Custom Manufacturing Available
Standard ball screws and linear guides don't always fit your design. Here's what RFU MOTION can customize based on your drawings:
- Shaft end machining — machined precisely to your drawing
- Screw length — cut to your exact requirement
- Preload — light, medium, heavy, or custom value
- Nut type — standard flange, special shape, or non-standard mounting interface
- Rail length — continuous cutting with end finishing (chamfer or grinding)
- Mounting holes — special thread sizes, hole spacing, or countersunk dimensions
Send us your drawing or specs — we'll deliver exactly what you need.
📦 MOQ: 1 piece / 1 set
⏱️ Lead time: Standard custom 5-7 days | Complex custom 7-15 days | Wire cutting +2 days
Request Custom Quote →