1/5

Flying Eagle Ceramic Bearings

$99.99
/** * 优惠码组件模型类 * 处理优惠码的显示和交互逻辑 */ class SpzCustomDiscountCodeModel extends SPZ.BaseElement { constructor(element) { super(element); // 复制按钮和内容的类名 this.copyBtnClass = "discount_code_btn" this.copyClass = "discount_code_value" } isLayoutSupported(layout) { return layout == SPZCore.Layout.LOGIC; } buildCallback() { // 初始化服务 this.action_ = SPZServices.actionServiceForDoc(this.element); this.templates_ = SPZServices.templatesForDoc(this.element); this.xhr_ = SPZServices.xhrFor(this.win); } /** * 渲染优惠码组件 * @param {Object} data - 渲染数据 */ doRender_(data) { return this.templates_ .findAndRenderTemplate(this.element, Object.assign(this.getDefaultData(), data) ) .then((el) => { this.clearDom(); this.element.appendChild(el); // 绑定复制代码功能 this.copyCode(el, data); }); } /** * 获取渲染模板 * @param {Object} data - 渲染数据 */ getRenderTemplate(data) { const renderData = Object.assign(this.getDefaultData(), data); return this.templates_ .findAndRenderTemplate(this.element, renderData) .then((el) => { this.clearDom(); return el; }); } /** * 清除DOM内容 */ clearDom() { const children = this.element.querySelector('*:not(template)'); children && SPZCore.Dom.removeElement(children); } /** * 获取默认数据 * @returns {Object} 默认数据对象 */ getDefaultData() { return { isMobile: appDiscountUtils.judgeMobile(), isRTL: appDiscountUtils.judgeRTL(), image_domain: this.win.SHOPLAZZA.image_domain, copyBtnClass: this.copyBtnClass, copyClass: this.copyClass } } /** * 复制优惠码功能 * @param {Element} el - 当前元素 */ copyCode(el) { const copyBtnList = el.querySelectorAll(`.${this.copyBtnClass}`); if (copyBtnList.length > 0) { copyBtnList.forEach(item => { item.onclick = async () => { // 确保获取正确的元素和内容 const codeElement = item.querySelector(`.${this.copyClass}`); if (!codeElement) return; // 获取纯文本内容 const textToCopy = codeElement.innerText.trim(); // 尝试使用现代API，如果失败则使用备用方案 try { if (navigator.clipboard && navigator.clipboard.writeText) { await navigator.clipboard.writeText(textToCopy); } else { throw new Error('Clipboard API not available'); } // 显示复制成功提示 this.showCopySuccessToast(textToCopy, el); } catch (err) { console.error('Modern clipboard API failed, trying fallback...', err); // 使用备用复制方案 this.fallbackCopy(textToCopy, el); } const discountId = item.dataset["discountId"]; // 跳转决策: is_redirection + link(可选覆盖) const setting = { is_redirection: item.dataset["redirection"] === "true", link: item.dataset["link"], }; const landingUrl = `/promotions/discount-default/${discountId}`; const finalUrl = appDiscountUtils.resolveDiscountHref(setting, landingUrl); if (finalUrl && appDiscountUtils.inProductBody(this.element)) { this.win.open(finalUrl, '_blank', 'noopener'); } } }) } } /** * 使用 execCommand 的复制方案 * @param {string} codeText - 要复制的文本 * @param {Element} el - 当前元素 */ fallbackCopy(codeText, el) { const textarea = this.win.document.createElement('textarea'); textarea.value = codeText; // 设置样式使文本框不可见 textarea.style.position = 'fixed'; textarea.style.left = '-9999px'; textarea.style.top = '0'; // 添加 readonly 属性防止移动端虚拟键盘弹出 textarea.setAttribute('readonly', 'readonly'); this.win.document.body.appendChild(textarea); textarea.focus(); textarea.select(); try { this.win.document.execCommand('copy'); // 显示复制成功提示 this.showCopySuccessToast(codeText, el); } catch (err) { console.error('Copy failed:', err); } this.win.document.body.removeChild(textarea); } /** * 创建 Toast 元素 * @returns {Element} 创建的 Toast 元素 */ createToastEl_() { const toast = document.createElement('ljs-toast'); toast.setAttribute('layout', 'nodisplay'); toast.setAttribute('hidden', ''); toast.setAttribute('id', 'discount-code-toast'); toast.style.zIndex = '1051'; return toast; } /** * 挂载 Toast 元素到 body * @returns {Element} 挂载的 Toast 元素 */ mountToastToBody_() { const existingToast = this.win.document.getElementById('discount-code-toast'); if (existingToast) { return existingToast; } const toast = this.createToastEl_(); this.win.document.body.appendChild(toast); return toast; } /** * 复制成功的提醒 * @param {string} codeText - 要复制的文本 * @param {Element} el - 当前元素 */ showCopySuccessToast(codeText, el) { const $toast = this.mountToastToBody_(); SPZ.whenApiDefined($toast).then(toast => { toast.showToast("Discount code copied !"); this.codeCopyInSessionStorage(codeText); }); } /** * 复制优惠码成功后要存一份到本地存储中，购物车使用 * @param {string} codeText - 要复制的文本 */ codeCopyInSessionStorage(codeText) { try { sessionStorage.setItem('other-copied-coupon', codeText); } catch (error) { console.error(error) } } } // 注册自定义元素 SPZ.defineElement('spz-custom-discount-code-model', SpzCustomDiscountCodeModel);
/** * Custom discount code component that handles displaying and managing discount codes * @extends {SPZ.BaseElement} */ class SpzCustomDiscountCode extends SPZ.BaseElement { constructor(element) { super(element); // API endpoint for fetching discount codes this.getDiscountCodeApi = "\/api\/storefront\/promotion\/code\/list"; // Debounce timer for resize events this.timer = null; // Current variant ID this.variantId = "c1abd029-1622-49ec-bd9b-b347432cc655"; // Store discount code data this.discountCodeData = {} } /** * Check if layout is supported * @param {string} layout - Layout type * @return {boolean} */ isLayoutSupported(layout) { return layout == SPZCore.Layout.LOGIC; } /** * Initialize component after build */ buildCallback() { this.templates_ = SPZServices.templatesForDoc(); this.viewport_ = this.getViewport(); // Bind methods to maintain context this.render = this.render.bind(this); this.resize = this.resize.bind(this); this.switchVariant = this.switchVariant.bind(this); } /** * Setup component when mounted */ mountCallback() { this.getData(); // Add event listeners this.viewport_.onResize(this.resize); this.win.document.addEventListener('dj.variantChange', this.switchVariant); } /** * Cleanup when component is unmounted */ unmountCallback() { this.viewport_.removeResize(this.resize); this.win.document.removeEventListener('dj.variantChange', this.switchVariant); // 清除定时器 if (this.timer) { clearTimeout(this.timer); this.timer = null; } } /** * Handle resize events with debouncing */ resize() { if (this.timer) { clearTimeout(this.timer) this.timer = null; } this.timer = setTimeout(() => { if (appDiscountUtils.inProductBody(this.element)) { this.render(); } else { this.renderSkeleton(); } }, 200); } /** * Handle variant changes * @param {Event} event - Variant change event */ switchVariant(event) { const variant = event.detail.selected; if (variant.product_id == '813e3424-01a5-48a0-8ac5-553583eb5705' && variant.id != this.variantId) { this.variantId = variant.id; this.getData(); } } /** * Fetch discount code data from API */ getData() { if (appDiscountUtils.inProductBody(this.element)) { const reqBody = { product_id: "813e3424-01a5-48a0-8ac5-553583eb5705", variant_id: this.variantId, product_type: "default", } if (!reqBody.product_id || !reqBody.variant_id) return; this.discountCodeData = {}; this.win.fetch(this.getDiscountCodeApi, { method: "POST", body: JSON.stringify(reqBody), headers: { "Content-Type": "application/json" } }).then(async (response) => { if (response.ok) { let data = await response.json(); if (data.list && data.list.length > 0) { data.list[0].product_setting.template_config = JSON.parse(data.list[0].product_setting.template_config); // Format timestamps to local timezone const zone = this.win.SHOPLAZZA.shop.time_zone; data.list = data.list.map(item => { if(+item.ends_at !== -1) { item.ends_at = appDiscountUtils.convertTimestampToFormat(+item.ends_at, zone); } item.starts_at = appDiscountUtils.convertTimestampToFormat(+item.starts_at, zone); return item; }); } this.discountCodeData = data; this.render(); } else { this.clearDom(); } }).catch(err => { console.error("discount_code", err) this.clearDom(); }); } else { this.renderSkeleton(); } } /** * Clear component DOM except template */ clearDom() { const children = this.element.querySelector('*:not(template)'); children && SPZCore.Dom.removeElement(children); } /** * Render discount codes with formatted dates */ render() { // Render using discount code model SPZ.whenApiDefined(document.querySelector('#spz_custom_discount_code_model')).then(renderApi => { renderApi.doRender_({ discountCodeData: this.discountCodeData }) }).catch(err => { this.clearDom(); }) } renderSkeleton() { // Render template for non-product pages this.templates_ .findAndRenderTemplate(this.element, { isMobile: appDiscountUtils.judgeMobile() }) .then((el) => { this.clearDom(); this.element.appendChild(el); }) .catch(err => { this.clearDom(); }); } } // Register custom element SPZ.defineElement('spz-custom-discount-code', SpzCustomDiscountCode);
Style- 12PCS
Quantity
Free worldwide shipping
Sustainably made
Secure payments
Description

Note: If you are not sure which accessory you need to buy, please contact customer service first. The website is not responsible if you purchase the wrong accessory.(No return or exchange service is provided for accessories other than quality issues)

Flying Eagle Scramjet bearings are the top of the range of the brand, designed to offer the maximum possible performance and manufactured with the best materials to guarantee their quality. The seven ceramic balls offer minimal rolling resistance and high resistance to expansion. This translates into a great ability to maintain speed for long periods of time.

Brand: FLYING EAGLE
Model: SCRAMJET
Ball material: black silicon nitride (SI3N4)
Number of balls: 7-ball structure
Outer ring diameter: 22MM
Inner ring diameter: 8MM
Width: 7MM
Specifications: 12 packs/16 packs/20 packs (including bearing cylinder)
Dust cover: removable rubber metal cover
Cage: nylon cage

Surface black plating process

Good stability 
corrosion resistance

Select excellent bearing steel and adopt surface black plating process to effectively reduce the possibility of bearing rust. The inner and outer rings are designed with dust-proof steps to reduce dust from entering the bearing and make sliding easier.

Silicon nitride (Si3N4) material

The ball is made of silicon nitride (Si3N4), which is hard and more corrosion-resistant and wear-resistant than metal. The ball has high precision, low friction, self-lubricating properties, and is easier to maintain. Its density is lower than that of steel balls and its weight is lighter.

Self-lubricating | Easy to maintain | Lightweight | Corrosion-resistant

FLYLNL 7-ball structure

Classic 7-ball structure, high-precision design, enhances the ball's ability to resist rolling fatigue and impact.

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