{"id":5269,"date":"2026-09-24T11:21:13","date_gmt":"2026-09-24T11:21:13","guid":{"rendered":"https:\/\/www.rendatsp.com\/product\/ghg-all-metal-oldham-coupling-304-stainless-with-aluminium-bronze-disc\/"},"modified":"2026-09-24T11:21:13","modified_gmt":"2026-09-24T11:21:13","slug":"ghg-all-metal-oldham-coupling-304-stainless-with-aluminium-bronze-disc","status":"publish","type":"product","link":"https:\/\/www.rendatsp.com\/ar\/product\/ghg-all-metal-oldham-coupling-304-stainless-with-aluminium-bronze-disc\/","title":{"rendered":"GHG All-Metal Oldham Coupling, 304 Stainless with Aluminium Bronze Disc"},"content":{"rendered":"

GHG series all-metal Oldham coupling with polished 304 stainless steel hubs and an imported aluminium bronze centre ring instead of a plastic disc. Because there is no polymer in the torque path it handles heat, chemicals, vacuum and washdown that would destroy a nylon or polyurethane disc, and it carries more torque for its size. Aluminium bronze is self-lubricating against steel, which is what keeps a metal Oldham running smoothly. Ten sizes, outer diameters 14.5 to 70 mm, bores 4 to 35 mm.<\/p>\n

Technical specifications<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Series<\/th>\nGHG<\/td>\n<\/tr>\n
Coupling type<\/th>\nOldham (cross sliding block) coupling, all metal<\/td>\n<\/tr>\n
Hub material<\/th>\n304 stainless steel<\/td>\n<\/tr>\n
Centre ring material<\/th>\nImported aluminium bronze<\/td>\n<\/tr>\n
Surface finish<\/th>\nPolished<\/td>\n<\/tr>\n
Shaft attachment<\/th>\nSet screw (grub screw) on each hub<\/td>\n<\/tr>\n
Outer diameter range<\/th>\n14.5 mm to 70 mm<\/td>\n<\/tr>\n
Bore range<\/th>\n4 mm to 35 mm depending on size<\/td>\n<\/tr>\n
Misalignment<\/th>\nLarge parallel offset, plus angular and axial<\/td>\n<\/tr>\n
Environment<\/th>\nSuits high temperature, vacuum, washdown and corrosive environments where plastic discs cannot be used<\/td>\n<\/tr>\n
Brand and origin<\/th>\nGND \/ Guangzhida, Dongguan, China<\/td>\n<\/tr>\n
Typical applications<\/th>\nOvens and heated process machinery, vacuum and semiconductor equipment, food and pharmaceutical washdown lines, chemical dosing drives<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

Available sizes<\/h2>\n

Each size is ordered with the two bore diameters you need, one for the motor shaft and one for the driven shaft.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Size (outer diameter x length)<\/th>\nBore range<\/th>\n<\/tr>\n<\/thead>\n
14.5 x 16 mm<\/td>\n4 to 6.35 mm<\/td>\n<\/tr>\n
16.8 x 19.8 mm<\/td>\n5 to 8 mm<\/td>\n<\/tr>\n
20 x 21.4 mm<\/td>\n5 to 8 mm<\/td>\n<\/tr>\n
26 x 25.6 mm<\/td>\n6 to 12 mm<\/td>\n<\/tr>\n
30 x 33 mm<\/td>\n6 to 12 mm<\/td>\n<\/tr>\n
34 x 34 mm<\/td>\n6 to 16 mm<\/td>\n<\/tr>\n
38 x 39.5 mm<\/td>\n8 to 16 mm<\/td>\n<\/tr>\n
45 x 43.6 mm<\/td>\n8 to 22 mm<\/td>\n<\/tr>\n
55 x 49.4 mm<\/td>\n10 to 25 mm<\/td>\n<\/tr>\n
70 x 57 mm<\/td>\n12 to 35 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

How to order<\/h2>\n

Couplings are quoted per order, with no price shown on the site. Send us the series GHG, the outer diameter and length you need, and the two bore diameters, for example GHG-34X34 with 10 mm and 12 mm bores. If you do not know which size fits, send the motor shaft diameter, the driven shaft diameter, the torque and the space available between the two shafts, and our engineers select it for you. RendatSP ships to Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria, Jordan and Syria.<\/p>\n

Frequently asked questions<\/h2>\n

Why choose an all-metal Oldham over a plastic disc version?<\/h3>\n

Because plastics soften, creep and degrade in heat, in solvents and under radiation, and they outgas in vacuum. An aluminium bronze ring does none of that, and it carries more torque. The trade-off is less damping and more noise, and the metal ring needs the shafts kept within the stated offset.<\/p>\n

Does the bronze ring need grease?<\/h3>\n

Aluminium bronze runs against steel without added lubricant, which is why it is used here. In very dusty environments keep the coupling covered rather than greasing it, because grease holds abrasive dust against the sliding faces.<\/p>\n

What temperature can it take?<\/h3>\n

Far higher than a nylon or polyurethane disc, since every part is metal. Tell us the actual working temperature in your application and we will confirm against the manufacturer limit before you order.<\/p>\n

Can it be used in vacuum?<\/h3>\n

Yes. Stainless steel and aluminium bronze do not outgas the way polymers do, which is why this construction is common on vacuum and semiconductor equipment.<\/p>\n

This version uses set screws. Is a clamp version available?<\/h3>\n

The GHG series is supplied with set screw hubs. If you need a clamp hub Oldham, the GHC aluminium series and the GHP and GHPC stainless series cover that, and we can quote whichever fits your shaft and torque.<\/p>","protected":false},"excerpt":{"rendered":"

GHG series all-metal Oldham coupling with polished 304 stainless steel hubs and an imported aluminium bronze centre ring instead of a plastic disc. Because there is no polymer in the torque path it handles heat, chemicals, vacuum and washdown that would destroy a nylon or polyurethane disc, and it carries more torque for its size. Aluminium bronze is self-lubricating against steel, which is what keeps a metal Oldham running smoothly. Ten sizes, outer diameters 14.5 to 70 mm, bores 4 to 35 mm.<\/p>","protected":false},"featured_media":5268,"template":"","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_forum_subforum_count":0,"_monsterinsights_skip_tracking":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[291],"product_tag":[],"class_list":["post-5269","product","type-product","status-publish","has-post-thumbnail","product_cat-oldham-couplings","desktop-align-center","tablet-align-left","mobile-align-left","first","instock","taxable","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/product\/5269","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/media\/5268"}],"wp:attachment":[{"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/media?parent=5269"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/product_brand?post=5269"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/product_cat?post=5269"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/product_tag?post=5269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}