Posts by Atlanta Precision Spindles
Vertical Machining Center (VMC) SKF Spindle Repair
(High-RPM • CAT40 / BT40 • ISO30 • Cartridge Systems) Many Vertical Machining Centers (VMCs) rely on SKF super-precision bearing systems inside integrated spindle cartridges. Whether the spindle uses 719xx hybrid ceramic sets for high speed or 70xx steel angular contact bearings for stiffness, preload accuracy and balance are critical to performance. Atlanta Precision Spindles…
Read MoreSKF Hybrid Ceramic 719xx Spindle Bearing Repair
(Si₃N₄ Ball, Super-Precision Angular Contact Systems) Many high-speed CNC and grinding spindles use SKF 719xx hybrid ceramic angular contact bearings, which feature: These bearings are engineered for speed and temperature stability — but they are extremely sensitive to preload, contamination, and assembly errors. Why Hybrid Ceramic 719xx Bearings Are Used Hybrid ceramic bearings offer: ✔…
Read MoreSKF 719xx & 70xx Series Bearing Spindle Repair
(Super-Precision Angular Contact Bearing Systems) Many CNC and grinding spindles use SKF 719xx and 70xx super-precision angular contact bearing series. These are commonly installed in matched sets with specific preload classes and arrangement configurations. If your spindle uses SKF 719 or 70 series bearings, rebuild precision is critical. SKF 719xx Series (Thin Section, High-Speed) The…
Read MoreBridgeport Series I CNC Spindle Repair
(2J-Based CNC Head Variations) The Bridgeport Series I CNC platform evolved from the legendary 2J variable-speed head design. While mechanically simpler than modern cartridge-style VMC spindles, these heads still rely on precise bearing preload and alignment to maintain finish quality and runout accuracy. Atlanta Precision Spindles rebuilds the spindle assembly to restore stiffness, minimize vibration,…
Read MoreBridgeport Discovery Series Spindle Repair
(Compact Cartridge CNC Spindles) The Bridgeport Discovery Series represented a major step forward from legacy knee-mill CNC heads. These machines use a more compact, cartridge-style spindle design engineered for greater rigidity, improved surface finish, and higher production consistency. Unlike older 2J-based heads, Discovery spindles are more sensitive to preload accuracy, lubrication volume, and thermal stability…
Read MoreBridgeport VMC / XR Series Spindle Repair
(V480 • V1000 • XR Platforms) Modern Bridgeport machining centers — including VMC and XR platforms such as the V480 and V1000 — use high-precision cartridge-style spindles designed for higher RPM, tighter tolerances, and sustained production duty. These are very different from legacy 2J-based heads. They are more thermally sensitive, more balance-sensitive, and far less…
Read MoreAnderson CNC Router Spindle Repair
Anderson CNC routers are known for high-speed production in demanding manufacturing environments. When spindle performance drops — vibration, heat, poor finish, or runout — productivity and part quality suffer quickly. Anderson America machines typically use high-speed electrospindles, often built by HSD Mechatronics. These spindles operate at tight tolerances and high RPM ranges, making precision rebuild…
Read MoreIs It the Anderson Router or the Spindle?
(How to Tell the Difference Before You Pull It) When cut quality drops or vibration increases on your Anderson CNC, the big question is: Is the issue in the machine — or inside the spindle? Most Anderson America routers use high-speed electrospindles, built In-House. Both the router structure and the spindle assembly influence finish quality,…
Read MoreAnderson Spindle Running Hot
If your Anderson CNC router spindle is running hot, it’s not something to ignore. Excessive spindle temperature is usually an early warning sign of internal bearing stress, preload issues, lubrication breakdown, or contamination. Most Anderson America routers are equipped with high-speed electrospindles — commonly built by HSD Mechatronics — and these units operate at extremely…
Read MoreAnderson Router Spindle Vibration
If you’re seeing chatter in the cut, poor edge finish, unusual noise at high RPM, or increased tool wear on your Anderson CNC router, spindle vibration is often the root cause. Most Anderson America routers run high-speed electrospindles — Built In-House — and these units are designed to operate at extremely tight tolerances. When vibration…
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