Why Indian CNC Manufacturers Choose TriQuench
Direct OEM precision engineering, verified ISO 1940 balancing certifications, and pan-India express dispatch.
1,200+ CNC Customers
Trusted by machine builders, furniture plants, and die-makers across India. Fully compatible with standard Biesse, Homag, SCM, Apex Precision, and Jyoti CNC platforms.
ISO & CE Certified
Every spindle is balanced to ISO 1940 Grade G0.4 with sub-3 micron runout accuracy. Manufactured under ISO 9001:2015 certified quality management systems.
24–48h Fast Shipping
Express dispatch from our central facility in Ahmedabad. Shipped in reinforced heavy-duty wooden crates with vacuum barrier packaging for safe transit.
Fixed and floating ball screw support: how BK and BF work together
Every ball screw needs a ball screw end support at each end. The BK bf support unit pair is the standard layout on CNC routers: BK on the motor side holds the screw axially with a ball screw support bearing set, and BF on the far end supports it radially only. This fixed and floating ball screw support layout stops thermal growth from bending the screw. TriQuench India lists an FK-15 fixed-side support unit and BK-BF ball nut housings, and ships every ball screw support in India from Ahmedabad.
BK/BF size guide by screw diameter
Typical pairings used on CNC machines. Always confirm against the end-journal drawing of your screw.
| Support size | Typical screw | Example screws |
|---|---|---|
| BK10 BF10 | 12–14 mm screws | 1204, 1404 |
| BK12 BF12 | 14–16 mm screws | 1605, 1610 |
| BK15 BF15 | 20 mm screws | 2005, 2010 |
| BK20 BF20 | 25 mm screws | 2505, 2510 |
Ball Screw Support (BK/BF): frequently asked questions
What is the difference between BK and BF ball screw supports?
BK is the fixed-side support: it holds the screw axially with a pair of preloaded angular contact bearings and a lock nut, so it takes the thrust. BF is the floating-side support: a single deep groove bearing supports the screw radially and lets it slide as it grows with heat. Use one of each per screw.
How do I install BK/BF supports?
Fit the BK unit at the motor end and tighten its lock nut to the bearing preload; fit the BF unit at the far end with its circlip. Align both units to the nut with the screw turning freely by hand along the full stroke, shimming if needed, then tighten the bolts and connect the coupling. A screw that binds at one end is misaligned.
What is the price of BK BF support units?
BK bf support price depends on size (BK10 to BK20 and above), bearing grade and quantity. Tell us the screw size or end-journal drawing and we quote the BK/BF pair, often with the screw, nut and coupling.
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Get a quote for Ball Screw Support (BK/BF)
Tell us the model, size or the machine it is for. Our Ahmedabad team replies with specifications, availability and price.