Cam followers, stud type CF (IKO / THK): roller D × C, stud d, thread, stud length, CF 3 to CF 30-2 + STEP/STL — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/cam-followers-stud-type-cf/ (sheet CC BY 4.0) Basis: THK Cam Follower General Catalog (CF-A and CF-AB tables), cross-checked against IKO's CF table on every row; maker CAD not linked Catalog version: 2026-10-20 Sizes: see table below - A stud-type cam follower (CF series; also called a stud track roller, cam roller or bolt-on roller) is a needle- or ball-bearing roller on a threaded stud that runs on a cam, rail or track. You mount it by drilling a through hole for the stud and tightening a nut on the thread G; D is the outer ring (the part that touches the track), C its width, d the stud diameter (and thread major diameter). - Table: THK's Cam Follower General Catalog (the CF-A table for 3 to 10 mm studs, the CF-AB table for 12 to 30 mm studs). B1 = B + B2 on every row. IKO's CF rows agree on d, D, C and the thread for every size (CF 3 and CF 4 from IKO's catalog PDF only; CF 5 to CF 30-2 from both IKO tables), and IKO's B1 equals THK's or is 0.1 to 0.2 mm larger (printed as 'max'). Both makers list the same CF 10-1, 12-1, 20-1, 24-1, 30-1 and 30-2 large-roller variants. - Mounting hole: IKO's page recommends an H7 hole for the metric CF series (H6 for the CFS miniature series). IKO's mounting dimension f and maximum tightening torque are in its catalog; the f column here is THK's shoulder dimension for the same sizes (IKO's f for CF 5 is 9.3 min vs THK 9.7: treat f as a maker-specific value and check your maker). Hex sizes in brackets are THK's stainless-steel values. - Files: eighteen envelope models, one per designation: outer ring Ø D × C at z 0 to C, then a stud drawn at Ø d from the ring face to the overall length B1 (the thread G is a plain cylinder at the nominal major diameter). The head collar, crowned or cylindrical ring profile, seals, hex socket depth and grease nipple are not published as numbers in the sources read and are not drawn. Use it to check a track clearance (ring D × C) and the stud hole and length (B1, B2, G1). - Left out: yoke-type rollers (NATR / NUTR), the miniature CFS series, thrust (CFN) and eccentric (CFE) types, load ratings (track capacity is in the makers' catalogs) and the inch series. No maker CAD or McMaster link is given because no cam follower CAD page was returned by search; both IKO and THK publish CAD from their catalogs. designation stud d, mm roller (outer ring) D, mm ring width C, mm thread G thread length G1, mm head length B, mm overall length B1, mm stud length B2, mm C1, mm hex socket H, mm (stainless) shoulder f, mm IKO B1 as printed, mm CF 3 3 10 7 M3×0.5 5 8 17 9 0.5 2 (1.5) 6.8 — CF 4 4 12 8 M4×0.7 6 9 20 11 0.5 2.5 (2) 8.6 — CF 5 5 13 9 M5×0.8 7.5 10 23 13 0.5 3 (2.5) 9.7 23 CF 6 6 16 11 M6×1 8 12 28 16 0.6 3 11 28.2 max CF 8 8 19 11 M8×1.25 10 12 32 20 0.6 4 13 32.2 max CF 10 10 22 12 M10×1.25 12 13 36 23 0.6 5 15 36.2 max CF 10-1 10 26 12 M10×1.25 12 13 36 23 0.6 5 15 36.2 max CF 12 12 30 14 M12×1.5 13 15 40 25 0.6 6 20 40.2 max CF 12-1 12 32 14 M12×1.5 13 15 40 25 0.6 6 20 40.2 max CF 16 16 35 18 M16×1.5 17 19.5 52 32.5 0.8 6 24 52.1 max CF 18 18 40 20 M18×1.5 19 21.5 58 36.5 0.8 6 26 58.1 max CF 20 20 52 24 M20×1.5 21 25.5 66 40.5 0.8 8 36 66.1 max CF 20-1 20 47 24 M20×1.5 21 25.5 66 40.5 0.8 8 36 66.1 max CF 24 24 62 29 M24×1.5 25 30.5 80 49.5 0.8 8 40 80.1 max CF 24-1 24 72 29 M24×1.5 25 30.5 80 49.5 0.8 8 40 80.1 max CF 30 30 80 35 M30×1.5 32 37 100 63 1 8 46 100 max CF 30-1 30 85 35 M30×1.5 32 37 100 63 1 8 46 100 max CF 30-2 30 90 35 M30×1.5 32 37 100 63 1 8 46 100 max Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - THK (catalog copy hosted by a distributor): Cam Follower General Catalog: CF-A (hex socket head, 3 to 10 mm) and CF-AB (12 to 30 mm) dimension tables: D, C, G, G1, B, B1, B2, C1, H, f — web — Publisher's page; dimensions are facts — https://cdn.shopify.com/s/files/1/1148/4670/files/Cam_Follower_-_Catalog.pdf - IKO (catalog PDF copy): IKO cam followers: CF 3 to CF 30-2 BR rows: D, C, d1 and thread — web — Publisher's page; dimensions are facts — https://acomee.com.mx/catalogos/catalogosi/IKO CAM FOLLOWERS.pdf - Aims Industrial (IKO distributor): IKO CF..BUUR table: D, C, d1, thread, B1 (max) for CF5 to CF30-2; CF5 detail G1 7.5, B 10, B2 13, H 3 — web — Publisher's page; dimensions are facts — https://aimsindustrial.com.au/en-nz/products/cam-follower-hex-2rs-crowned-outer-ring-cf - Coolen Bearings: IKO cam follower data: stud-hole fit (H7 metric CF, H6 miniature CFS) and track capacity — web — Publisher's page; dimensions are facts — https://coolenbearings.com/iko/track-rollers/cam-followers/iko-cam-follower-data - BDS Bearing (IKO catalog CAT-57164 extract): IKO cam followers CF 3 to CF 5 (D, C, d1, G, G1, mounting dimension f, torque) and CFS miniature — web — Publisher's page; dimensions are facts — https://help.bdsbearing.com/hubfs/Knowledge%20Base/IKO/IKO%20Miniature%20Type%20Cam%20Followers.pdf Free files (CC BY 4.0, Xem Studio; STEP + STL, 18 parts): https://xemstudio.com/files/hardware/cam-followers-stud-type-cf/index.json API: https://xemstudio.com/api/geometry?object=cam-followers-stud-type-cf