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Linear Ball bearing KWVE30-B-L-V1-G2 INA

The INA KWVE30-B-L-V1-G2 is a long-type four-row recirculating ball linear carriage under Schaeffler KWVE series, engineered for high rigidity, heavy load and high-precision linear motion. Dimensional specs comply with DIN 645 standard: matching 28mm width linear rail, system height H=42mm, carriage width B=90mm, extended overall length L=126.4mm, fillet radius r=1.2mm. It carries V1 zero preload and G2 precision grade, dynamic load rating 34500N, static load rating 74000N, delivering superior multi-directional moment capacity for long-stroke equipment.

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The INA KWVE30-B-L-V1-G2 is a long-type four-row recirculating ball linear carriage under Schaeffler KWVE series, engineered for high rigidity, heavy load and high-precision linear motion. Dimensional specs comply with DIN 645 standard: matching 28mm width linear rail, system height H=42mm, carriage width B=90mm, extended overall length L=126.4mm, fillet radius r=1.2mm. It carries V1 zero preload and G2 precision grade, dynamic load rating 34500N, static load rating 74000N, delivering superior multi-directional moment capacity for long-stroke equipment.
Carriage body and rolling balls adopt GCr15 bearing steel, vacuum heat-treated to HRC 60–64 with outstanding contact fatigue resistance and wear performance. Integrated green plastic end caps and double-layer contact seals block dust and coolant; the PA66 ball retainer stabilizes ball circulation and lowers running noise. Key production processes include closed-die forging, CNC precision milling, vacuum quenching, raceway mirror grinding and superfinishing to reach Ra ≤0.018μm surface roughness, securing consistent positioning accuracy.
Calculated per ISO 3408 standard, its nominal L10 service life hits 33,000 hours under standard operating conditions (-10℃~80℃, moderate load, sufficient lubrication). Main lifespan constraints include overloading, contamination, poor alignment and lubricant degradation. Widely applied to CNC machine tools, automation assembly lines, packaging machinery, laser processing equipment and light-duty robotic axes; its long carriage design distributes load evenly to reduce rail deformation during heavy cutting and high-speed reciprocation.
For maintenance, replenish EP2 lithium grease every 200 operating hours, filling 30% of internal ball channel. Weekly wipe rail raceways to clear metal chips; monthly inspect seal integrity and running noise. During installation, clean mounting surfaces completely, control parallelism error below 0.01mm, fasten M6 mounting bolts with 22–26 N·m torque, and perform no-load test run to verify smooth sliding without jamming before formal operation.

BRAND	FONKIN/SKF/FAG/INA/NSK/NTN/TIMKEN/SNR/IKO/KOYO/ASAHI/FYH/THK/HIWIN/PMI
BEARINGS NO.	KWVE30-B-L-V1-G2 INA
TYPE	Linear Ball Bearing Unit
Inner (d) MM
Outer (D) MM
Width (B) MM
WEIGHT/KG
EAN CODE	4054362 997818

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