{"product_id":"borg-warner-velvet-drive-double-ball-bearing-71-series-4920a","title":"Borg Warner Velvet Drive Double Ball Bearing – 71 Series | 4920A","description":"\u003ch2\u003eBorg Warner Velvet Drive Double Ball Bearing – 71 Series | Part 4920A\u003c\/h2\u003e\n\n\u003cp\u003eA direct-replacement double ball bearing for Borg Warner Velvet Drive 71 series marine transmissions. Double ball bearings in the Velvet Drive series carry both radial and axial loads on primary rotating shafts — they are precision components that maintain shaft alignment and absorb thrust forces generated during forward and reverse operation. At this price point, part 4920A is a significant bearing assembly, typically located at a primary shaft support position within the transmission. It is replaced during a full rebuild or when bearing failure is confirmed through noise, vibration, or inspection.\u003c\/p\u003e\n\n\u003ch3\u003ePart Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 4920A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Borg Warner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Double Ball Bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmission Family:\u003c\/strong\u003e Velvet Drive – 71 Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Marine transmission – shaft support \/ load bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagram Position:\u003c\/strong\u003e Primary shaft bearing location — refer to your Velvet Drive 71 series parts diagram for exact position\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New OEM replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBorg Warner Velvet Drive 71C series marine transmissions\u003c\/li\u003e\n\u003cli\u003eBorg Warner Velvet Drive 71 series variants where part number 4920A is specified\u003c\/li\u003e\n\u003cli\u003eMarine inboard applications where 4920A appears in the transmission parts diagram\u003c\/li\u003e\n\u003cli\u003eAlways confirm fitment against your transmission model number, ratio, and parts diagram before ordering — Velvet Drive bearing part numbers are position-specific\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDuring a full Velvet Drive 71 series transmission rebuild\u003c\/li\u003e\n\u003cli\u003eWhen the bearing shows pitting, spalling, roughness, or play on inspection\u003c\/li\u003e\n\u003cli\u003eWhen rumbling, grinding, or vibration is traced to the bearing location inside the transmission\u003c\/li\u003e\n\u003cli\u003eWhen shaft end-play or radial play exceeds service limits specified in the Velvet Drive service manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDouble ball bearing replacement requires full transmission disassembly — refer to the Velvet Drive 71 series service manual for the correct procedure and bearing press specifications\u003c\/li\u003e\n\u003cli\u003eUse the correct bearing driver or press to avoid damaging the bearing races during installation\u003c\/li\u003e\n\u003cli\u003eInspect the bearing bore and shaft journal for wear, scoring, or out-of-round condition before installing\u003c\/li\u003e\n\u003cli\u003eReplace all seals and gaskets disturbed during disassembly — do not reuse old seals\u003c\/li\u003e\n\u003cli\u003eVerify correct bearing orientation and preload as specified in the service manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat does “double ball bearing” mean?\u003c\/strong\u003e A double ball bearing has two rows of ball elements, allowing it to carry both radial loads (perpendicular to the shaft) and axial\/thrust loads (along the shaft axis) simultaneously — making it suitable for primary shaft positions in a marine transmission.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow do I confirm this is the correct bearing for my transmission?\u003c\/strong\u003e Locate the model plate on your transmission, note the model number and ratio, then cross-reference part number 4920A against the Velvet Drive 71 series parts diagram for your specific unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan I replace just this bearing without a full rebuild?\u003c\/strong\u003e Accessing this bearing requires full transmission disassembly. If the transmission is already apart, replace all bearings and seals at the same time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/borg-warner-velvet-drive-needle-bearing-4840d\"\u003eBorg Warner Velvet Drive Needle Bearing (4840D)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/borg-warner-velvet-drive-oil-pump-71c-72c-71c-a60\"\u003eBorg Warner Velvet Drive Oil Pump – 71C \/ 72C Series (71C-A60)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/borg-warner-velvet-drive-input-shaft-71c-72vdr-71c-3a16\"\u003eBorg Warner Velvet Drive Input Shaft – 71C \/ 72VDR Series (71C-3A16)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/borg-warner-shift-spool-o-ring-velvet-drive-71c-72c-4804h\"\u003eBorg Warner Shift Spool O-Ring – Velvet Drive 71C \/ 72C (4804H)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/crusader-damper-plate-302-351-sae-0-borgwarner-oem-part-r140001\"\u003eCrusader Damper Plate 302\/351 – SAE #0 \/ BorgWarner (R140001)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003eThe 4920A double ball bearing is a high-value precision component — at this price, it’s the kind of part that should only be ordered once the transmission is already disassembled and the bearing position has been confirmed against the parts diagram. The most common mistake is ordering a bearing by description alone without verifying the exact position number in the Velvet Drive 71 series diagram; Velvet Drive transmissions use multiple bearings of different types and sizes, and the wrong bearing will not fit correctly. If you’re doing a full rebuild, replace the \u003ca href=\"\/products\/borg-warner-velvet-drive-needle-bearing-4840d\"\u003eneedle bearings (4840D)\u003c\/a\u003e, \u003ca href=\"\/products\/borg-warner-shift-spool-o-ring-velvet-drive-71c-72c-4804h\"\u003eshift spool O-ring (4804H)\u003c\/a\u003e, and inspect the \u003ca href=\"\/products\/borg-warner-velvet-drive-oil-pump-71c-72c-71c-a60\"\u003eoil pump (71C-A60)\u003c\/a\u003e at the same time — the labour to access these components is the same whether you replace one part or all of them.\u003c\/p\u003e","brand":"BOR","offers":[{"title":"Default Title","offer_id":43563779293220,"sku":"4920A","price":1407.33,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/images_4acff8eb-dcd7-49cd-b0d1-67f5274ae017.png?v=1787615205","url":"https:\/\/marisolmarine.com\/products\/borg-warner-velvet-drive-double-ball-bearing-71-series-4920a","provider":"Marisol Marine Company","version":"1.0","type":"link"}