{"product_id":"main-bearings-030-oversize-set-fits-allis-chalmers-h3-i40-i600-d15-d12","title":"Main Bearings - .030\" Oversize - Set fits Allis Chalmers H3 I40 I600 D15 D12","description":"\u003ch2\u003eMain Bearings, .030\" Oversize Set for Allis Chalmers Tractors\u003c\/h2\u003e\u003cp\u003eThis main bearing set is an aftermarket replacement engine component supplied in .030\" oversize. Oversize main bearings are used when the crankshaft main journals have been ground undersize, allowing the bearing shells to restore proper clearance. The set is intended for the Allis Chalmers equipment applications listed below. Verify the required undersize and complete model before ordering.\u003c\/p\u003e\u003ch3\u003eProduct Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Main Bearings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e .030\" Oversize\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Set\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003efits Allis Chalmers H3\u003c\/li\u003e\n\u003cli\u003efits Allis Chalmers I40\u003c\/li\u003e\n\u003cli\u003efits Allis Chalmers I600\u003c\/li\u003e\n\u003cli\u003efits Allis Chalmers D15\u003c\/li\u003e\n\u003cli\u003efits Allis Chalmers D12\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What does .030\" oversize mean for main bearings? \u003cstrong\u003eA:\u003c\/strong\u003e It indicates the bearing shells are sized for a crankshaft whose main journals have been ground .030\" undersize, restoring the correct running clearance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How do I confirm the correct bearing size? \u003cstrong\u003eA:\u003c\/strong\u003e Check the crankshaft journal measurement or the machine shop's grind specification, then match it to the required oversize before purchase.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eThis is an aftermarket replacement part. Confirm fitment before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"Bethesda Industrial","offers":[{"title":"Default Title","offer_id":50472938176762,"sku":"OO1B31775","price":600.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0862\/5101\/2346\/files\/s-l1600_5034836e-a502-4622-846b-83455c0e0435.jpg?v=1789938722","url":"https:\/\/bethesdaindustrial.com\/products\/main-bearings-030-oversize-set-fits-allis-chalmers-h3-i40-i600-d15-d12","provider":"Bethesda Industrial","version":"1.0","type":"link"}