{"id":2865,"date":"2026-04-02T08:18:13","date_gmt":"2026-04-02T08:18:13","guid":{"rendered":"https:\/\/wheelsprocket.xyz\/product\/finished-bore-sprocket-fbk80b\/"},"modified":"2026-04-03T07:42:49","modified_gmt":"2026-04-03T07:42:49","slug":"finished-bore-sprocket-fbk80b","status":"publish","type":"product","link":"https:\/\/wheelsprocket.xyz\/ko\/product\/finished-bore-sprocket-fbk80b\/","title":{"rendered":"Finished Bore Sprocket FBK80B"},"content":{"rendered":"
\n\"FBK80B<\/p>\n

Technical Specifications \u2014 FBK80B Finished Bore Sprocket<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\ub9e4\uac1c\ubcc0\uc218<\/th>\n\uac12<\/th>\n\uba54\ubaa8<\/th>\n<\/tr>\n<\/thead>\n
\ubaa8\ub378<\/td>\nFBK80B<\/td>\nAsian Standard FBK\/FBN Series<\/td>\n<\/tr>\n
\uc815\uc810<\/td>\n25.400 mm<\/td>\n<\/td>\n<\/tr>\n
Tooth Width (T)<\/td>\n14.6 mm<\/td>\n<\/td>\n<\/tr>\n
\uce58\uc544 \ubc94\uc704<\/td>\nZ=9\u201323<\/td>\n<\/td>\n<\/tr>\n
\ud5c8\ube0c \uc2a4\ud0c0\uc77c<\/td>\nB Type (finished bore, pre-machined)<\/td>\n<\/td>\n<\/tr>\n
Bore Range<\/td>\nTo your specification<\/td>\nKeyway standard; specify shaft dia.<\/td>\n<\/tr>\n
\uc7ac\ub8cc<\/td>\nC45 \ud0c4\uc18c\uac15<\/td>\n<\/td>\n<\/tr>\n
\uce58\uc544 \uacbd\ub3c4<\/td>\nHRC 50\u201360<\/td>\n\uc720\ub3c4 \uacbd\ud654<\/td>\n<\/tr>\n
Bore Tolerance<\/td>\nH7<\/td>\nStandard fit; H6 on request<\/td>\n<\/tr>\n
Keyway<\/td>\nStandard 120\u00b0 position<\/td>\nDIN 6885 keys<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\uc8fc\uc694 \ud2b9\uc9d5<\/h2>\n
\n
\n\n\u26a1<\/span> Ready-to-Install<\/summary>\n
Pre-machined bore to H7 tolerance eliminates on-site boring \u2014 simply align, key, and run. Saves 1\u20133 hours of workshop time per sprocket replacement.<\/div>\n<\/details>\n
\n\n <\/span> H7 Bore Precision<\/summary>\n
CNC-bored to H7 tolerance (ISO 286) with surface finish Ra 1.6 \u00b5m \u2014 ensuring a precision shaft fit that prevents fretting, micro-movement, and hub fatigue failure.<\/div>\n<\/details>\n
\n\n <\/span> Standard Keyway Included<\/summary>\n
DIN 6885 keyway pre-cut at the 120\u00b0 position; set-screw hole tapped and included. No additional machining required.<\/div>\n<\/details>\n
\n\n <\/span> Fast Dispatch on Standard Sizes<\/summary>\n
Standard bore finishes are available from stock for immediate dispatch. Specify your bore diameter \u2014 most are produced within 3\u20135 days.<\/div>\n<\/details>\n<\/div>\n

\uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8<\/h2>\n
\n
\n\"Conveyor<\/p>\n
\n
Conveyor Maintenance<\/div>\n
Quick sprocket replacement on conveyor drives without on-site boring capability<\/div>\n<\/div>\n<\/div>\n
\n\"Agricultural<\/p>\n
\n
Agricultural Drives<\/div>\n
End-of-season sprocket replacement on harvester and planter drives<\/div>\n<\/div>\n<\/div>\n
\n\"Plant<\/p>\n
\n
Plant Maintenance<\/div>\n
Rapid sprocket changeout in remote locations without machine shop access<\/div>\n<\/div>\n<\/div>\n
\n\"Production<\/p>\n
\n
Production Lines<\/div>\n
Minimise production downtime with pre-machined finished bore replacement sprockets<\/div>\n<\/div>\n<\/div>\n<\/div>\n

\uace0\uac1d \ub9ac\ubdf0<\/h2>\n
\n
Shane D.  \u2605\u2605\u2605\u2605\u2605<\/span>   \ud638\uc8fc<\/span><\/div>\n
“Finished bore FBK80B sprockets let our maintenance crew swap sprockets without calling in the machinist \u2014 cut our maintenance window from 4 hours to 45 minutes.”<\/div>\n
FBK80B Z=15 30mm bore · March 2025<\/div>\n<\/div>\n
\n
Magnus L.  \u2605\u2605\u2605\u2605\u2605<\/span>   Sweden<\/span><\/div>\n
“H7 bore tolerance was confirmed by our QA team using plug gauges \u2014 spot on. Shaft fit is perfect without any shimming.”<\/div>\n
FBK80B Z=19 45mm bore · February 2025<\/div>\n<\/div>\n
\n
Karen P.  \u2605\u2605\u2605\u2605\u2606<\/span>   \ub274\uc9c8\ub79c\ub4dc<\/span><\/div>\n
“Good product, arrived as specified. Would appreciate a broader standard bore size range stocked from inventory.”<\/div>\n
FBK80B Z=12 28mm bore · January 2025<\/div>\n<\/div>\n
\n
Tom\u00e1s R.  \u2605\u2605\u2605\u2605\u2605<\/span>   Portugal<\/span><\/div>\n
“For our maintenance team, pre-finished bore sprockets are invaluable. These are consistently bored to tolerance and deliver fast.”<\/div>\n
FBK80B Z=18 35mm bore · April 2025<\/div>\n<\/div>\n

<\/span>\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n
\n\n►  How do I specify a finished bore sprocket?<\/summary>\n
Specify: model number, tooth count (Z), shaft diameter, bore tolerance (H7 standard), keyway dimensions (or ‘no keyway’), and whether a set-screw is required.<\/div>\n<\/details>\n
\n\n►  What is the minimum bore diameter available?<\/summary>\n
Minimum bore depends on tooth count \u2014 for small tooth counts, hub wall thickness limits the minimum. Contact us with your tooth count and required bore to confirm feasibility.<\/div>\n<\/details>\n
\n\n►  Can you bore to a non-standard tolerance (e.g. H6 or j6)?<\/summary>\n
Yes. H6, H5, and special fit tolerances are available on request with 2\u20133 extra days for precision boring. Specify the required tolerance at order.<\/div>\n<\/details>\n
\n\n►  Do you include the key with the sprocket?<\/summary>\n
A DIN 6885 key sized to fit the keyway is included with most finished bore sprockets. Please confirm at order if a key is required.<\/div>\n<\/details>\n
\n\n►  Is there an additional cost for the finished bore machining?<\/summary>\n
Finished bore versions carry a modest machining surcharge over stock-bore prices. Contact us for a precise quote based on tooth count and bore diameter.<\/div>\n<\/details>\n
    \n
  1. Verify shaft is clean, within tolerance, and free of burrs before assembly.<\/li>\n
  2. Slide sprocket onto shaft (H7\/k6 slip or light press fit); align keyway and insert key.<\/li>\n
  3. Tighten set-screw to the hub marking torque specification.<\/li>\n
  4. Align with mating sprocket; install chain and adjust tension.<\/li>\n
  5. Check bore for any fretting marks after first 100 hours \u2014 if fretting is present, check shaft diameter and fit tolerance.<\/li>\n<\/ol>\n
    \u2713 ISO 9001:2015<\/span>\u2713 ANSI B29.1<\/span>\u2713 ISO\/DIN 8187<\/span>\u2713 JIS B 1801<\/span>\u2713 BS\/DIN \ud45c\uc900<\/span>\u2713 \uc601\uad6d \ud45c\uc900<\/span><\/div>\n
    \n
    \n\"\uc5d0\ubc84\ud30c\uc6cc<\/p>\n
    \n

    Everpower Australia\ub97c \uc120\ud0dd\ud574\uc57c \ud558\ub294 \uc774\uc720\ub294 \ubb34\uc5c7\uc77c\uae4c\uc694?<\/h3>\n

    \ub2f9\uc0ac\ub294 25\ub144 \uc774\uc0c1\uc758 \uccb4\uc778 \uad6c\ub3d9 \uc7a5\uce58 \uc81c\uc870 \uacbd\ud5d8\uc744 \ubcf4\uc720\ud55c \uc218\uc9c1 \ud1b5\ud569\ud615 \uc81c\uc870\uc5c5\uccb4\uc785\ub2c8\ub2e4. 35,000m\u00b2 \uaddc\ubaa8\uc758 \uc0dd\uc0b0 \uc2dc\uc124\uc5d0\uc11c \uc5f0\uac04 4\ubc31\ub9cc \uac1c \uc774\uc0c1\uc758 \uc2a4\ud504\ub85c\ud0b7\uc744 \uc0dd\uc0b0\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. GB, ISO, ANSI, JIS, DIN \ubc0f BS \ud45c\uc900\uc744 \ucda9\uc871\ud558\ub294 \uc81c\ud488\uc744 \ud638\uc8fc \uc804\uc5ed\uc758 OEM \ud30c\ud2b8\ub108, \uc720\ud1b5\uc5c5\uccb4 \ubc0f \uc9c1\uc811 \uc0b0\uc5c5 \uad6c\ub9e4\uc790\uc5d0\uac8c \uacf5\uae09\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

    \nISO 9001 \uc778\uc99d \ud68d\ub4dd<\/span>
    \n\uc5f0\uac04 400\ub9cc \uac1c \uc774\uc0c1<\/span>
    \nOEM \uac00\ub2a5<\/span>
    \n\ud638\uc8fc \uc7ac\uace0 \uc788\uc74c<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n
    \n

    \uc8fc\ubb38\ud560 \uc900\ube44 \ub418\uc168\ub098\uc694? \uc9c0\uae08 \ubc14\ub85c \ubb34\ub8cc \uacac\uc801\uc744 \ubc1b\uc544\ubcf4\uc138\uc694.<\/h3>\n

    \uc800\ud76c \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ud300\uc740 \ud638\uc8fc \uae30\uc5c5\ub4e4\uc744 \uc704\ud574 \uc0ac\uc591, \ub9de\ucda4 \uc124\uacc4 \ubc0f \ub300\ub7c9 \uad6c\ub9e4 \uac00\uaca9 \ucc45\uc815\uc5d0 \ub300\ud55c \uc9c0\uc6d0\uc744 \uc5f0\uc911\ubb34\ud734 24\uc2dc\uac04 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n

    \ud83d\udce9 \uacac\uc801 \uc694\uccad\ud558\uae30<\/a>
    \n 
    \n    \ud83d\udd0d \ubaa8\ub4e0 \uc81c\ud488 \ubcf4\uae30<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

    \uadf8\ub9cc\ud07c FBK80B finished bore sprocket<\/strong> (25.400 mm pitch) arrives pre-machined to your specified shaft diameter<\/strong> \u2014 eliminating on-site boring, reducing installation time, and ensuring a precision-fit bore that prevents fretting and hub loosening. Manufactured from C45 carbon steel with hardened teeth (HRC 50–60) and a 120\u00b0 keyway position, it covers Z=9\u201323 and is the fastest path from order to running for Australian maintenance teams.<\/p>","protected":false},"featured_media":2731,"comment_status":"closed","ping_status":"open","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_cat":[6693,7059],"product_tag":[6920,6847,6919,6921],"class_list":{"0":"post-2865","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-sprockets","7":"product_cat-standard-sprockets","8":"product_tag-25-4mm-finished-bore-sprocket","9":"product_tag-asian-standard","10":"product_tag-fbk80b-finished-bore-sprocket","11":"product_tag-ready-to-install-sprocket","13":"first","14":"instock","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/wheelsprocket.xyz\/ko\/wp-json\/wp\/v2\/product\/2865","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wheelsprocket.xyz\/ko\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/wheelsprocket.xyz\/ko\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/wheelsprocket.xyz\/ko\/wp-json\/wp\/v2\/comments?post=2865"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wheelsprocket.xyz\/ko\/wp-json\/wp\/v2\/media\/2731"}],"wp:attachment":[{"href":"https:\/\/wheelsprocket.xyz\/ko\/wp-json\/wp\/v2\/media?parent=2865"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/wheelsprocket.xyz\/ko\/wp-json\/wp\/v2\/product_cat?post=2865"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/wheelsprocket.xyz\/ko\/wp-json\/wp\/v2\/product_tag?post=2865"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}