--- product_id: 78620233 title: "#502B-1 Douglas Replacement Plastic Insert for Caster Chairs" brand: "caster chair company" price: "€ 48.35" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.at/products/78620233-502b-1-douglas-replacement-plastic-insert-for-caster-chairs store_origin: AT region: Austria --- # Universal multi-brand compatibility Genuine OEM precision fit Pre-greased for smooth glide #502B-1 Douglas Replacement Plastic Insert for Caster Chairs **Brand:** caster chair company **Price:** € 48.35 **Availability:** ✅ In Stock ## Summary > 🪑 Upgrade your chair’s core—because wobble is so last season! ## Quick Answers - **What is this?** #502B-1 Douglas Replacement Plastic Insert for Caster Chairs by caster chair company - **How much does it cost?** € 48.35 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/78620233-502b-1-douglas-replacement-plastic-insert-for-caster-chairs) ## Best For - caster chair company enthusiasts ## Why This Product - Trusted caster chair company brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Optimized Load Support:** Supports up to 20 kg, perfect for professional office environments and home setups alike. - • **Effortless Installation:** Soak, tap, and go—install in under a minute with no special tools required. - • **Versatile Compatibility:** Fits top furniture brands like Cramco, Tempo, Keller, and more for ultimate convenience. - • **Seamless Chair Stability:** Eliminate wobble with pre-lubricated, OEM-grade inserts designed for flawless swivel and tilt. - • **Durable High-Quality Plastic:** Engineered to last through daily use, ensuring long-term chair performance. ## Overview The #502B-1 Douglas Replacement Plastic Insert is a genuine OEM part engineered for smooth swivel and tilt chair mechanisms. Pre-greased for immediate use, it fits multiple leading furniture brands and installs easily with a quick soak and tap. Crafted from durable plastic, it supports up to 20 kg and ensures long-lasting, wobble-free seating comfort. ## Description Replace your worn-out bushings with Genuine OEM Douglas Plastic Inserts for swivel and tilt mechanisms. Designed to fix "wobbly chair" issues, these pre-greased bushings ensure smooth contact and fit a variety of furniture brands including Cramco, Douglas, and Tempo Industries. Easy installation with simple soaking and a rubber mallet tap. ## Features - Genuine OEM Douglas Part: Ensures compatibility and quality for Douglas chair swivel and tilt mechanisms - Pre-greased for Smooth Operation: Comes pre-lubricated for better contact with the chair base, eliminating "wobbly chair" issues - Universal Fit: Compatible with various furniture brands such as Cramco, Tempo Industries, Keller, Stoneville, Callee, and Blacksmith - Easy Installation: Simple to install by soaking in hot water for 20 (twenty) seconds and securing with a rubber mallet - Durable Construction: Made from high-quality plastic for long-lasting performance and reliability ## Technical Specifications | Specification | Value | |---------------|-------| | Mounting Type | Stem Mount | | Load Capacity | 2E+1 kg | | Caster Type | Swivel | | Surface Recommendation | Multi-Surface | | Wheel Width | 2 Inches | | UPC | 601579008642 | | Manufacturer | Caster Chair Company | | Part Number | 1 | | Item model number | DOUGLAS-BUSHING | | Is Discontinued By Manufacturer | No | | Size | Diameter x Length: 1.75" x 4" | | Pattern | Solid | | Shape | Round | | Item Package Quantity | 1 | | Number Of Pieces | 1 | | Cutting Diameter | 4 Inches | | Special Features | Fits 1" (one inch) Swivel & Tilt Mechanism Pipes, Genuine OEM Part, Outer Diameter: 1.75", Stem Diameter: 1.625" | | Batteries Included? | No | | Batteries Required? | No | | Assembled Diameter | 4 Inches | ## Product Details - **Color:** Black - **Brand:** Caster Chair Company - **Material:** Plastic - **Unit Count:** 1.0 Count - **Item Weight:** 1.12 ounces ## Images ![#502B-1 Douglas Replacement Plastic Insert for Caster Chairs - Image 1](https://m.media-amazon.com/images/I/41c354tuM9L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked-ish *by M***E on Reviewed in the United States on October 11, 2021* My Douglas chairs almost 20 yrs old. I was set to buy the $50 swivel things when I realized these should do the trick. I was hoping the size was universal but NO - off by a fraction (too big) with a little creative gambling (a lighter to melt plastic, gloves to shape smaller & Vaseline) I got them in & all is good! Not sure I'd recommend what I did, but if you're desperate, you can shape the rings to be smaller. ### ⭐⭐⭐⭐⭐ Inexpensive fix for those wobbly swivel chairs *by R***O on Reviewed in the United States on May 10, 2016* If you have 'wobbly' swivel chairs, this is probably the item you need to fix the situation. I strongly suggest you view one of the 'how to' videos on YouTube for the repair procedures. Basically one steps on one of the chairs 'legs' and 'yanks off the seat part. The plastic insert resides within the leg portion's central tube. Using a wooden dowel, force out the old insert (from the bottom of the chair to the top) and carefully tap in (with a rubber mallet) the new unit. Once seated, you can then drop in the chair seat's swivel & tilt mechanism, and you are back in business...it is that easy. [Again, there are helpful videos on YouTube that illustrate how this is done.] ### ⭐⭐⭐⭐ Needed a little help to fit. *by H***B on Reviewed in the United States on September 5, 2018* Bought 2 of these to replace broken inserts on patio chairs. I've replaced the inserts before (same size as these) and had no problems. With these, they were a bit of a problem. I dont know if these were factory seconds or not, but the first plastic ring that goes down into the chair base was too big - the insert would not slide in, or even pound in. I had to use a utility knife to trim the insert a little all the way around before it would fit into the chair base, allowing me to pound it the rest of the way in with a rubber mallet (pounding these in is normal for these inserts - they must fit tightly to prevent seat wobble). After trimming that first ring, they fit fine - no wobble at all. The swivel action is REALLY tight though, which wasn't my experience with previous set I replaced. I'm hoping that it will loosen a bit as the chairs are used. Minus one star for having to trim and the tight swivel action, but not that big a deal, really. Shipping speed was good, and they work, so it's all good. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/78620233-502b-1-douglas-replacement-plastic-insert-for-caster-chairs](https://www.desertcart.at/products/78620233-502b-1-douglas-replacement-plastic-insert-for-caster-chairs) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-04-23*