Flanged linear bushings LMF, LMK, LMH (and long LUU): bore, OD, length, flange size, bolt circle, hole + counterbore, 6 to 60 mm + STEP/STL (8 to 20 mm) — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/flanged-linear-bushings-lmf-lmk-lmh/ (sheet CC BY 4.0) Basis: Samick LMF / LMF..L catalogue, Tuli LMK / LMK..LUU datasheets, THK LMH tables; cross-checked against a second catalogue, McMaster's flange-mounted bearings and each other; McMaster-Carr linked for CAD Catalog version: 2026-10-20 Sizes: see table below - Flanged linear bushings (flange linear bearings, flanged ball bushings) are an LM-type linear bushing with a flange on one end: the body drops into a bored plate and the flange screws to its face. LMF has a round flange, LMK a square flange, LMH an oval (two-flat) flange. The d column is the shaft diameter the ball set runs on (LM8 = 8 mm shaft); UU means a seal at each end; L after the number (LMF8LUU) is the long version. The numbers here are the Asian (JIS-style) LM series that Samick, THK, Misumi and the 3D-printer parts sold as LMF8UU, LMK10UU, LMF12UU follow. McMaster-Carr's 440C stainless flange-mounted bearings use the same sizes (see below). - Sources and cross-checks: LMF numbers are Samick's catalogue and a second catalogue (DriveHQ, maker not named) with identical d, D, L, D1, H, PCD and hole columns for 6 to 60 mm. LMK numbers are Tuli's datasheet; its d, D, L, H and PCD equal the LMF columns for every size, and its K equals the square-flange column of the DriveHQ catalogue for sizes 6 to 30. McMaster's 440C flange-mounted metric bearings (round: 6, 8, 10, 12, 16, 20, 25, 30, 40 mm; square: 6 to 25 mm) agree on length, flange size, bolt circle and OD for every size where they overlap. THK's LMH table (flats K = the catalogue's W, hole pitch B and C = the catalogue's A and F) matches the DriveHQ catalogue for sizes 6 to 30; for 16 mm and up B × C is a rectangle whose diagonal equals the PCD. - Disagreements, shown rather than averaged: LMF40LUU is 154 long and LMF60LUU 211 long (Samick, DriveHQ, WF International), but the square-flange LMK40LUU / LMK60LUU are 151 / 209 (Tuli, Misumi) and McMaster lists a 60 mm round-flange bushing at 209. THK's LMH10 flange is Ø39 where the LMF10 flange is Ø40. The LMK hole sizes (3.5 × 6 × 3.1 for 6 to 8 mm and so on) differ slightly from LMF's (3.4 × 6.5 × 3.3); both are as printed. LMH hole counts are not stated in the text: for LMH up to 13 mm only one pitch (= the PCD) is printed, from 16 mm a B × C rectangle on the PCD. - Hole count: LMK has four mounting holes (Makerstore product text; Tuli's LMF page says a circular flange has 4 holes for fixing). The tables give hole Ø d1, counterbore Ø d2 and depth h as one 'd1 × d2 × h' column; the counterbore is on the outer flange face (the face the body does not stand out of) in the files, which is the usual way to screw a flange bushing to a plate, but the text tables do not say so. Square-flange LMK holes sit on the diagonals of the square (a hole on the axis would run off the edge for the small sizes). - Files: 20 solids (LMF and LMK, UU and long LUU, for 8, 10, 12, 16 and 20 mm shafts): a body Ø D with the bore d, a flange at one end flush with the end face, four holes on the PCD with counterbores. No ball tracks, retainer, wiper seals or ring grooves (those numbers are on the LM..UU page and are not drawn). The bore is the nominal shaft diameter, the bore of the bushing before your clearance; the shaft is on the linear-shafts page. Pocket in the plate: body OD D (press or slide per the mating table), flange recess optional. - Left out: the other sizes as files (6, 13, 25 to 80 mm are in the table only), LMH files (hole positions are only partly printed), steel-retainer (A) variants, load ratings, tilt/squareness tolerances, LMF80UU (Samick lists D1 164, H 18, PCD 142; a single source) and the inch (McMaster) sizes. LMEF / LMHP / LMFP (guided or elliptical flange) are different series and not covered. designation bore d (shaft Ø), mm body OD D, mm length L, mm flange flange thickness H, mm bolt circle PCD, mm hole Ø d1, mm counterbore Ø d2 × depth h, mm LMF6UU 6 12 19 Ø28 round 5 20 3.4 Ø6.5 × 3.3 LMF8SUU 8 15 17 Ø32 round 5 24 3.4 Ø6.5 × 3.3 LMF8UU 8 15 24 Ø32 round 5 24 3.4 Ø6.5 × 3.3 LMF10UU 10 19 29 Ø40 round 6 29 4.5 Ø8 × 4.4 LMF12UU 12 21 30 Ø42 round 6 32 4.5 Ø8 × 4.4 LMF13UU 13 23 32 Ø43 round 6 33 4.5 Ø8 × 4.4 LMF16UU 16 28 37 Ø48 round 6 38 4.5 Ø8 × 4.4 LMF20UU 20 32 42 Ø54 round 8 43 5.5 Ø9.5 × 5.4 LMF25UU 25 40 59 Ø62 round 8 51 5.5 Ø9.5 × 5.4 LMF30UU 30 45 64 Ø74 round 10 60 6.6 Ø11 × 6.5 LMF35UU 35 52 70 Ø82 round 10 67 6.6 Ø11 × 6.5 LMF40UU 40 60 80 Ø96 round 13 78 9 Ø14 × 8.6 LMF50UU 50 80 100 Ø116 round 13 98 9 Ø14 × 8.6 LMF60UU 60 90 110 Ø134 round 18 112 11 Ø17.5 × 10.8 LMF6LUU (long) 6 12 35 Ø28 round 5 20 3.4 Ø6.5 × 3.3 LMF8LUU (long) 8 15 45 Ø32 round 5 24 3.4 Ø6.5 × 3.3 LMF10LUU (long) 10 19 55 Ø40 round 6 29 4.5 Ø8 × 4.4 LMF12LUU (long) 12 21 57 Ø42 round 6 32 4.5 Ø8 × 4.4 LMF13LUU (long) 13 23 61 Ø43 round 6 33 4.5 Ø8 × 4.4 LMF16LUU (long) 16 28 70 Ø48 round 6 38 4.5 Ø8 × 4.4 LMF20LUU (long) 20 32 80 Ø54 round 8 43 5.5 Ø9.5 × 5.4 LMF25LUU (long) 25 40 112 Ø62 round 8 51 5.5 Ø9.5 × 5.4 LMF30LUU (long) 30 45 123 Ø74 round 10 60 6.6 Ø11 × 6.5 LMF35LUU (long) 35 52 135 Ø82 round 10 67 6.6 Ø11 × 6.5 LMF40LUU (long) 40 60 154 Ø96 round 13 78 9 Ø14 × 8.6 LMF50LUU (long) 50 80 192 Ø116 round 13 98 9 Ø14 × 8.6 LMF60LUU (long) 60 90 211 Ø134 round 18 112 11 Ø17.5 × 10.8 LMK6UU 6 12 19 22 × 22 square 5 20 3.5 Ø6 × 3.1 LMK8UU 8 15 24 25 × 25 square 5 24 3.5 Ø6 × 3.1 LMK10UU 10 19 29 30 × 30 square 6 29 4.5 Ø7.5 × 4.1 LMK12UU 12 21 30 32 × 32 square 6 32 4.5 Ø7.5 × 4.1 LMK13UU 13 23 32 34 × 34 square 6 33 4.5 Ø7.5 × 4.1 LMK16UU 16 28 37 37 × 37 square 6 38 4.5 Ø7.5 × 4.1 LMK20UU 20 32 42 42 × 42 square 8 43 5.5 Ø9 × 5.1 LMK25UU 25 40 59 50 × 50 square 8 51 5.5 Ø9 × 5.1 LMK30UU 30 45 64 58 × 58 square 10 60 6.6 Ø11 × 6.1 LMK35UU 35 52 70 64 × 64 square 10 67 6.6 Ø11 × 6.1 LMK40UU 40 60 80 75 × 75 square 13 78 9 Ø14 × 8.1 LMK50UU 50 80 100 92 × 92 square 13 98 9 Ø14 × 8.1 LMK60UU 60 90 110 106 × 106 square 18 112 11 Ø17 × 11.1 LMK6LUU (long) 6 12 35 22 × 22 square 5 20 3.5 Ø6 × 3.1 LMK8LUU (long) 8 15 45 25 × 25 square 5 24 3.5 Ø6 × 3.1 LMK10LUU (long) 10 19 55 30 × 30 square 6 29 4.5 Ø7.5 × 4.1 LMK12LUU (long) 12 21 57 32 × 32 square 6 32 4.5 Ø7.5 × 4.1 LMK13LUU (long) 13 23 61 34 × 34 square 6 33 4.5 Ø7.5 × 4.1 LMK16LUU (long) 16 28 70 37 × 37 square 6 38 4.5 Ø7.5 × 4.1 LMK20LUU (long) 20 32 80 42 × 42 square 8 43 5.5 Ø9 × 5.1 LMK25LUU (long) 25 40 112 50 × 50 square 8 51 5.5 Ø9 × 5.1 LMK30LUU (long) 30 45 123 58 × 58 square 10 60 6.6 Ø11 × 6.1 LMK35LUU (long) 35 52 135 64 × 64 square 10 67 6.6 Ø11 × 6.1 LMK40LUU (long) 40 60 151 75 × 75 square 13 78 9 Ø14 × 8.1 LMK50LUU (long) 50 80 192 92 × 92 square 13 98 9 Ø14 × 8.1 LMK60LUU (long) 60 90 209 106 × 106 square 18 112 11 Ø17 × 11.1 LMH6 (THK) 6 12 19 Ø28 with flats 18 apart 5 hole pitch 20 (one spacing printed) 3.4 Ø6.5 × 3.3 LMH8S (THK) 8 15 17 Ø32 with flats 21 apart 5 hole pitch 24 (one spacing printed) 3.4 Ø6.5 × 3.3 LMH8 (THK) 8 15 24 Ø32 with flats 21 apart 5 hole pitch 24 (one spacing printed) 3.4 Ø6.5 × 3.3 LMH10 (THK) 10 19 29 Ø39 with flats 25 apart 6 hole pitch 29 (one spacing printed) 4.5 Ø8 × 4.4 LMH12 (THK) 12 21 30 Ø42 with flats 27 apart 6 hole pitch 32 (one spacing printed) 4.5 Ø8 × 4.4 LMH13 (THK) 13 23 32 Ø43 with flats 29 apart 6 hole pitch 33 (one spacing printed) 4.5 Ø8 × 4.4 LMH16 (THK) 16 28 37 Ø48 with flats 34 apart 6 hole pitch 31 × 22 4.5 Ø8 × 4.4 LMH20 (THK) 20 32 42 Ø54 with flats 38 apart 8 hole pitch 36 × 24 5.5 Ø9.2 × 5.4 LMH25 (THK) 25 40 59 Ø62 with flats 46 apart 8 hole pitch 40 × 32 5.5 Ø9.2 × 5.4 LMH30 (THK) 30 45 64 Ø74 with flats 51 apart 10 hole pitch 49 × 35 6.6 Ø11 × 6.5 Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - Samick (via AIMS Industrial): Flanged linear bushing LMF, Asian standard catalogue p.70-71: d, D, L, D1, H, PCD, d1 x d2 x h — web — Publisher's page; dimensions are facts — https://aimsindustrial.com.au/cdn/shop/files/Samick-Flanged-Linear-Bushing-LMF-Asian-Standard-Catalogue-Cover-and-Pages-70-71.pdf - Samick (via AIMS Industrial): Flanged long linear bushing LMF..L, Asian standard catalogue p.72-73: d, D, L, D1, H, PCD, d1 x d2 x h — web — Publisher's page; dimensions are facts — https://aimsindustrial.com.au/cdn/shop/files/Samick-Flanged-Long-Linear-Bushing-LMF-L-Asian-Standard-Catalogue-Cover-and-Pages-72-73.pdf - Tuli (distributor datasheet): LMK..UU square flange linear bearings: d, D, L, flange square K, H, PCD, bolt hole d1 x d2 x h — web — Publisher's page; dimensions are facts — https://www.tuli.si/media/custom/upload/LMK-UU-Linear-Bearings.pdf - Tuli (distributor datasheet): LMK..LUU long square flange linear bearings: d, D, L, K, H, PCD, bolt hole d1 x d2 x h — web — Publisher's page; dimensions are facts — https://www.tuli-shop.com/media/custom/upload/LMK-LUU-Linear-Bearings.pdf - Tuli (distributor): Linear bushing LMF..UU product page: 'Flange is circular shaped and has 4 holes for fixing' — web — Publisher's page; dimensions are facts — https://www.tuli-shop.com/us/linear-bushing-lmf-uu-4930 - Makerstore Australia: LMK8UU product text: four mounting holes, 25 x 25 mm square flange, 3.5 mm holes — web — Publisher's page; dimensions are facts — https://www.makerstore.com.au/?p=11649 - THK: Flange type linear bushings LMH (catalogue A4-68, A4-69): d, D, L, D1, K, H, B, C, mounting hole d1 x d2 x h — web — Publisher's page; dimensions are facts — https://tech.thk.com/en/products/pdfs/en_a04_068.pdf - THK: Linear bushings LM, LME, LMF: housing bore tolerances H7 / J7 / H6 / J6 / K6 and LM shaft tolerances f6 / g6 / h6 / f5 / g5 / h5 / h7 / k6 (B4-39 to B4-41) — web — Publisher's page; dimensions are facts — https://tech.thk.com/en/products/pdf/en_b04_039.pdf - Linear motion catalogue (maker not named; hosted on DriveHQ): Ball bushes: LM..UU and LM..LUU (d, D, L, B, W, D1), LMF (d, D, L, D1, H, PCD, hole), LMK / LMH (K, W, A, F) — web — Publisher's page; dimensions are facts — https://www.drivehq.com/file/df.aspx/isGallarytrue/shareID6477378/parentID26712025/fileID8191578157?1=1 - WF International: LM..LUU long linear bearing: d, D, L, ring-groove numbers — web — Publisher's page; dimensions are facts — https://www.wfint.com.tw/LM_L-Series/long-linear-bearing.html - McMaster-Carr: Flange-mounted linear ball bearings (round and square flange, inch and metric) (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/flanged-linear-ball-bearings - McMaster-Carr: Linear ball bearings and linear bearing shafts (rods) (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/linear-rod-bearings - McMaster-Carr: Linear motion rods (shafts) (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/linear-motion-rods Free files (CC BY 4.0, Xem Studio; STEP + STL, 20 parts): https://xemstudio.com/files/hardware/flanged-linear-bushings-lmf-lmk-lmh/index.json API: https://xemstudio.com/api/geometry?object=flanged-linear-bushings-lmf-lmk-lmh