The Schneeberger BMW 45-B-G2-V2 precision linear guide offers exceptional rigidity and load capacity for demanding industrial automation.With a 45mm rail width and G2
preload classification,it ensures minimal deflection under high forces.Engineered for CNC machinery,semiconductor manufacturing,and medical devices,it delivers micron-level
accuracy.Its corrosion-resistant design and integrated sealing make it ideal for harsh environments.
Product Parameters
Parameter Value
Series BMW Monorail Guidance System
Rail Width(mm)45
Preload Classification G2(Medium Preload)
Load Capacity(Dynamic)48 kN(C)/60 kN(C0)
Accuracy Grade P(High Precision)
Repeatability(μm)≤±1
Max.Speed(m/s)5
Operating Temperature-30°C to+80°C
Seal Type Multi-layer scrapers
Lubrication Grease or oil
Key Features&Advantages
Ultra-High Rigidity:Patented rail geometry reduces deformation under load.Maintains positioning accuracy in heavy milling and grinding.
G2 Preload Optimization:Balances smooth motion with vibration damping.Minimizes chatter during high-speed machining.
IP65 Sealing:Multi-layered scrapers exclude chips and coolant.Extends service life in dirty CNC environments.
Typical Applications
CNC machining centers(spindle drives,gantries)
Coordinate measuring machines(CMMs)
Laser cutting systems(linear axis positioning)
Semiconductor wafer handlers
Installation&Maintenance
Align rails within 0.5μm/m straightness tolerance.Use Schneeberger’s SNG-2 grease for initial lubrication.Torque mounting bolts to 22 Nm.Inspect seals quarterly in
high-contamination zones.Relubricate every 1,000 km or 6 months.
Critical Notes
Avoid using alkaline cleaners on anodized surfaces.Ensure particulate filters on automatic lubricators.Never mix grease types.Verify rail parallelism with laser interferometers
during setup.
10 Frequently Asked Questions(FAQs)
Q1:What distinguishes the BMW 45-B-G2-V2 from standard linear guides?
The BMW series uses Schneeberger’s asymmetric roller technology.This design increases contact area by 30%versus ball guides.It provides higher moment load ratings critical for tilting resistance.The G2 preload ensures optimal stiffness without excessive drag.
Q2:How does the IP65 sealing protect the guideway in coolant-heavy CNC machines?
Triple-lip scrapers expel 99%of fluids and swarf.Stainless-steel end seals prevent ingress at rail termini.Tested against high-pressure coolant jets.Seals remain flexible at-30°C,
avoiding brittle failure in cold starts.
Q3:What lubrication intervals maximize BMW 45-B-G2-V2 lifespan?
Initial lubrication lasts 500 km under moderate loads.Reapply SNG-2 grease every 1,000 km or 6 months.In 24/7 semiconductor production,use automatic lubricators monthly.
Monitor grease ports for contamination blockage.
Q4:Can I retrofit BMW 45 guides onto existing machines?
Yes,provided mounting surfaces meet 0.01mm flatness per 100mm.Check bolt pattern compatibility(standard 60mm spacing).Schneeberger offers CAD models for retrofit
verification.Always replace carriages and rails as matched sets.
Q5:What causes premature wear in G2-preloaded guides?
Over-torquing mounting bolts induces rail distortion.Misalignment exceeding 200μm/m accelerates roller skidding.Contaminated grease forms abrasive paste.Always use
torque wrenches during installation.
Q6:Is the BMW 45-B-G2-V2 suitable for vacuum environments?
Yes,with V2-specification seals.Standard models outgas<10⁻⁶mbar·l/s.Specify cleanroom packaging if using in semiconductor vacuum chambers.Avoid petroleum greases;use
perfluoropolyether(PFPE)lubricants.
Q7:How do I diagnose alignment errors post-installation?
Measure carriage rolling resistance with a force gauge.>15N deviation indicates misalignment.Use laser trackers to verify straightness<5μm/m.Audible"chatter"during
acceleration suggests preload loss.
Q8:What’s the dynamic load capacity for vertical Z-axis applications?
Derate dynamic load(C)by 20%for vertical mounting.The 45-B-G2-V2 supports 38.4 kN vertical dynamic force.Always include safety factors of 1.5+for impact loads like tool
changers.
Q9:Can I use these guides with linear motors?
Absolutely.The G2 preload minimizes cogging interference.Ensure rail grounding to dissipate EMI.Position feedback systems require≤1μm resolution to leverage the guide’s
repeatability.
Q10:How does temperature affect BMW 45 guide accuracy?
Thermal expansion coefficient is 11μm/m·°C.For a 1m rail,a 10°C shift causes 110μm drift.Compensate via control system scaling.In labs,stabilize temperature to±0.5°C for
sub-micron accuracy.
FAQ
1.Who are We?
Beijing Zhongping Technology Co., LTD., is a one-stop integrated service provider of intelligent manufacturing, belongs to the Gong Doctor Group, is a scientific research, design, marketing, technical services, industrial Internet, international import and export services as one of the science and technology companies.
2.What can you buy from us?
PLC, inverter, human-machine interface, hydraulic products, low-voltage power distribution, industrial robots and core components
3.Is the item in stock or need to be purchased from another supplier?
We have a large inventory of goods and have our own warehouse.
4.What advantages do we have over other suppliers?
Our company has a large amount of inventory and a number of warehouses, but also in the country's important industrial provinces and cities with offices and a number of overseas service points. To provide you with intelligent manufacturing one-stop comprehensive services, save efforts, labor and cost.
5.Can you provide 100% new original authentic products?
We only sell new original genuine, no renovation, no fake, only for the original factory original!
6.How long is the delivery time?
If there is a stock, it will take 2-3 working days to ship, if the quantity is large, it will take 5-7 working days after receiving the payment, if it is not a conventional model, it will take some time, we will inform you of the specific delivery time.
7.Is there technical support available?
Of course, we have a professional technical team that can help you solve technical problems.
8.How do we guarantee quality?
We have three processes to control the quality of goods.
1). Our engineers will inspect the production and quality control in the factory regularly.
2) Incoming materials shall be inspected by experienced purchasing engineers before they can be stored.
3). At least 2 people in the logistics department cross-check the goods to be sent before delivery.
9.Can you guarantee the safe and reliable delivery of your products?
Yes, we strictly adopt the international standard packing. We also use special packaging for dangerous goods, and refrigerated shipping for items with temperature requirements. Special item packaging and general cargo standard packaging requirements may incur additional costs.
10.How about the freight?
The cost depends on how you choose to get the goods. Express is usually the fastest but also the most expensive way. Sea freight is the best solution for large quantities of goods. The exact shipping cost depends on the purchase amount、quantity and weight of your order. Please feel free to contact us for more information.
010-64225983
+8613811814778
info@zhongpingtech.com
Building 26, Liyuan Community, Chaoyang District, Beijing, China
