Overview
The 22340 split bearing is a specialized type of spherical roller bearing designed with a two-piece outer ring and housing. This innovative design allows installation and replacement without requiring the removal of connected equipment or major shaft disassembly, significantly reducing downtime in industrial settings. Commonly used in heavy industries, these bearings conform to ISO 15:2017 standards for dimensional interchangeability. The 22340 designation indicates a bore diameter of 200mm, with specific dimensions of 200mm (bore) × 420mm (OD) × 138mm (width). Their split construction makes them particularly valuable in applications where equipment accessibility is limited.
Structure and Working Principle
The 22340 split bearing consists of four main components: a two-piece outer ring with spherical raceway, a solid inner ring, double rows of barrel-shaped rollers, and a cage (usually brass or polyamide). The bearing's spherical geometry enables self-alignment, compensating for up to 3° of shaft misalignment. When assembled, the split outer ring is clamped together with precision-machined bolts, creating a seamless load path. The bearing distributes loads through the rollers' line contact with raceways, handling both radial loads (up to 2,400kN dynamic rating) and moderate axial loads in either direction. Special sealing arrangements (often labyrinth or V-ring designs) protect the internal components in harsh environments.
Key Features
1. Maintenance Efficiency: The split design enables bearing inspection and replacement without dismantling adjacent machinery, reducing downtime by up to 70% compared to solid bearings. 2. Enhanced Load Capacity: Utilizing double-row spherical rollers, the 22340 achieves 20-30% higher load ratings than single-row designs of comparable size. The symmetrical roller arrangement ensures balanced load distribution even under heavy or shock loading conditions. 3. Customization Options: Manufacturers offer variations with different clearance grades (C3/C4), lubrication systems (grease or oil), and cage materials to suit specific operational requirements. High-temperature versions can operate continuously at 200°C with special heat-stabilized treatments.
Application Areas
Primary industrial applications include large rotating equipment where maintenance access is challenging: - Mining: Crushers, vibrating screens, and conveyor drive pulleys where contamination risk is high - Pulp & Paper: Dryer sections and calendar rolls requiring frequent bearing replacement - Energy: Fans and pumps in power plants with limited shutdown windows - Marine: Stern tube bearings in ships needing in-situ servicing These bearings are particularly valuable in food processing and pharmaceutical applications where hygienic split housings allow thorough cleaning without complete disassembly.
Maintenance and Precautions
Proper installation is critical for split bearings. The mating surfaces must be clean and free of burrs before assembly. Use a dial indicator to verify less than 0.05mm runout after installation. Always torque bolts in a star pattern to specified values (typically 180-220Nm for this size). Lubrication intervals depend on operating conditions: under normal loads, regrease every 3,000-5,000 operating hours using EP lithium complex grease. In high-temperature or wet environments, use synthetic grease with shorter intervals. Monitor vibration levels; a velocity RMS exceeding 4.5mm/s indicates potential bearing wear requiring inspection.
B2B Procurement Guide
Industrial buyers should specify: 1. Precision class (typically P0 or P6 for most industrial applications) 2. Cage material (metal for high temperatures, polymer for reduced friction) 3. Lubrication type (standard grease, food-grade, or oil systems) 4. Sealing configuration (contact/non-contact seals or shield options) Lead times for standard 22340 bearings range from 4-8 weeks, while customized versions may require 10-12 weeks. Bulk orders (10+ units) often qualify for 8-15% discounts. Consider total cost of ownership—premium bearings with longer L10 life may offer better value despite higher initial cost. Always verify certification documents (ISO 9001, ABMA/ANSI standards compliance).
Related Manufacturers
- 主营：剖分轴承、斗轮机轴承、剖分式轴承
- 主营：剖分轴承、圆柱滚子轴承、圆锥滚子轴承、非标圆锥滚子轴承、英制非标轴承、非标轴承、矿山设备剖分式轴承、交叉圆柱滚子轴承、双列圆柱滚子轴承、圆锥轴承、设备剖分轴承、电厂矿山建筑轴承、双列圆锥轴承、双向推力角接触球轴承、水泵机床设备轴承、角接触球轴承、进口工艺轴承、非标精密深沟球轴承、推力圆锥轴承、双列圆锥滚子轴承、DFA轴承、单列英制非标轴承、剖分式球面滚子轴承、调心滚子
- 主营：日本进口轴承、美国进口轴承、进口轴承、进口轴承代理商
- 主营：进口轴承、SKF轴承、NSK轴承、FAG轴承、INA轴承、NTN轴承、FYH轴承、LYC轴承、ZWZ轴承、HRB轴承、不锈钢轴承、高温轴承
- 主营：三类轴承、精密轴承、机械轴承、滚子轴承、球面轴承、针刺机轴承、耐高温轴承、减速机轴承、高载荷轴承、采煤机轴承、振动筛轴承、搅拌车轴承、轧钢机轴承、起重机轴承、减速装置轴承、铁路车辆轴承、调心滚子轴承、深沟球轴承、调心球轴承、圆锥滚子轴承、推力球轴承、外球面轴承、角接触球轴承、圆柱滚子轴承、薄壁轴承
- 主营：外球面、风神s30、德国fag、hrb轴承、轴承座、thk轴承、nsk轴承、lyc轴承、ntn轴承、ina轴承、球轴承、宝马e90、印刷机、190厚度、nmb高速、机器人、德国ina、thk滑块、789101112、球带座、超薄壁、thk导轨、铁姆肯、中国lyc、传祺gs5
- 主营：丝杠轴承、日本LIBC轴承、LIBC轴承、轴承、滑板轴承、深沟球608轴承、608轴承、陆地冲浪板轴承、日本NSK轴承、NSK轴承、深沟球轴承、NSK调心滚子轴承、NSK681xzz轴承钢、调心滚子SKF轴承、圆柱滚子轴承、滚针轴承、角接触轴承、非标进口轴承、带座球轴承、深沟球调心滚子轴承、SKF调心滚子轴承、大型调心滚子轴承、瑞典SKF进口轴承、调心滚子轴承
- 主营：轴承、调心滚子轴承、进口轴承、NSK轴承、SKF轴承、洛阳轴承、哈尔滨轴承、天马轴承、重型轴承座、轴承批发、电机轴承厂家、6205轴承、6308轴承、进口轴承代理商、滚筒轴承座、大连冶金轴承、风机轴承、机床主轴轴承、振动筛轴承销售、608ZZ高速轴承、深沟球轴承、微型轴承、胀紧套、滑块导轨自动化设备配
- 主营：轴承、高温轴承、调心滚子轴承、圆锥滚子轴承
- 主营：齿轮箱、电机主轴、机床主轴、球轴承、主轴轴承、滚子轴承、非标轴承、关节轴承、圆锥轴承、磨煤机轴承、破碎机轴承、变速器轴承、钻孔设备、减速电机、水泥机械、起重设备、排风设备、圆锥滚子、机械主轴、减速机主轴、破碎机主轴、变速箱差速器
- 主营：进口轴承、SKF轴承、FAG轴承、NSK轴承、IKO轴承、KOYO轴承、THK轴承、INA轴承、TIMKEN轴承、国产轴承、LLA轴承
- 主营：进口轴承、SKF轴承、NSK轴承、NTN轴承、HRB轴承、国产轴承
- 主营：skf轴承、NSK轴承、FAG轴承
- 主营：润滑脂黄油枪、电动润滑脂枪、气动润滑脂泵、SKF进口轴承拉拔器、轴承安装拆卸工具、轴承感应加热器、轴承润滑油脂、气动单点自动润滑器、SKF检测仪器、SKF激光对中仪、SKF液压泵气动泵注油器、SKF骨架油封、SKF耐磨衬套
- 主营：深沟球轴承、角接触球轴承、圆柱滚子轴承、圆锥滚子轴承、推力球轴承、调心滚子轴承、外球面轴承、滚针轴承、关节轴承、丝杠支承轴承、机床主轴轴承、陶瓷混合轴承、高温轴承、不锈钢轴承、满装滚子轴承、高速主轴轴承、精密轴承、薄壁轴承、带座外球面轴承、凸轮从动器、导轨滑块、直线导轨
- 主营：进口轴承、国产轴承、英制非标轴承、哈尔滨轴承、HRB轴承