{"product_id":"industrial-t-21-seal-head-assembly-type-t-21-size-0-875","title":"Industrial T-21 Seal Head Assembly Type T-21 Size 0.875","description":"\u003cdiv\u003e\u003cp\u003eIndustrial T-21 Seal Head Assembly Type T-21 for a 0.875-inch (7\/8\") shaft is a standard head component in Type 21 mechanical seals used on pumps and other rotating equipment. For the 0.875-inch shaft, bore (d) is 22.2 mm; the head outer diameter (D1) is 38.10 mm (1.50 in), and the D3 dimension for the T-21 variant is 33.4 mm (1.315 in). Mounting lengths are L1 = 23.80 mm (0.94 in) and L2 = 10.31 mm (0.41 in). In catalogs, this head is listed as Type T-21 and is commonly treated as equivalent to John Crane Type 21, designed to accompany compatible mating components in seal kits for 7\/8\" shafts in industrial service.\u003c\/p\u003e\u003c\/div\u003e","brand":"AMERICAN","offers":[{"title":"New","offer_id":51659897930030,"sku":null,"price":361.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_7848c25f-ddab-4864-80ff-06aa3e54ced7.jpg?v=1769530510","url":"https:\/\/plgautomation.com\/products\/industrial-t-21-seal-head-assembly-type-t-21-size-0-875","provider":"PLG Automation ","version":"1.0","type":"link"}