Blis Kugelgewindetriebe precision ballscrews and linear components

Industrial precision ballscrews by Blis Kugelgewindetriebe GmbH: ground and whirled drive screws compliant with DIN 69051, flanged and cylindrical nuts, and high-load Heavy Line mechanisms for machine tools and automation.

Blis Kugelgewindetriebe GmbH manufacturing facilities and linear technologies

German manufacturer Blis Kugelgewindetriebe GmbH has engineered precision ballscrews in Wuppertal since 1980. The facility integrates whirling machining centers, thread grinding equipment, and metrology testing inspection benches for high-grade drive mechanics.

Manufacturing plant covering 10,000 square meters inside Wagner Industrial Park Wuppertal
Qualified engineering team of 100 machine specialists and precision tooling experts
Quality management system qualified under international DIN EN ISO 9001:2015 standard
Technical archive holding more than 15,000 completed custom ballscrew design drawings

BLIS flanged ballscrew nuts compliant with DIN 69051 dimensional standards

Precision flanged nuts from BLIS are manufactured in single and double preloaded versions with end flange or middle flange arrangements. The units conform to DIN 69051 specifications and incorporate protective polymer or brass scrapers for harsh machine tool environments.

Single and preloaded double flanged nuts designed according to DIN 69051 part 2
Flange placement options featuring end-flange mounting or central-flange positioning
Integrated dual-lip seals preventing ingress of abrasive swarf and cooling lubricants
Mating ballscrew diameters spanning 10 mm to 200 mm with pitch steps from 2 mm to 50 mm

BLIS compact cylindrical ballscrew nuts for tight mechanical assemblies

Cylindrical nuts from BLIS are developed for compact machine slides and feed drives where radial clearance is limited. Installation relies on a ground outer diameter or keyed slots with internal preload mechanisms delivering high axial stiffness and positioning precision.

Sleek cylindrical body geometry designed for mounting inside narrow machine bores
Single and double cylindrical configurations providing minimal overall diameter
Precision cylindrical ground outer mounting surfaces holding h6 and g6 fit tolerances
Keyway slots and radial threaded points ensuring rigid rotational anti-twist locking

BLIS ballscrew preloading systems and axial backlash elimination designs

To eliminate axial play and increase structural rigidity, BLIS implements four preloading methods: two-nut spacers with intermediate ground rings, pitch-shift single nuts, spring-loaded expansion packs, and micron-graded selective ball sorting for zero-backlash motion.

Two-nut tension schemes utilizing O-preload and X-preload ground spacer rings
Monolithic Shift-Mutter geometry adjusting internal thread pitch in one nut shell
Spring-cushioned Federvorspannung packs accommodating thermal screw expansion
Selective micron-graded ball sorting ensuring uniform multi-point rolling contact

BLIS Heavy Line high-load ballscrews for demanding industrial machinery

The BLIS Heavy Line series is built for heavy mechanical stamping presses, injection molding machines, and heavy positioning jacks. These assemblies support dynamic load ratings up to 6,000 kN using large balls up to 30 mm diameter and deep-profile gothic arch raceways.

Dynamic axial load ratings reaching up to 6,000 kN for heavy pressing operations
Screw diameters from 80 mm to 200 mm accommodating rolling balls up to 30 mm
Induction hardened raceways delivering surface hardness of 60 plus minus 2 HRC
Reinforced alloy ball deflectors engineered for severe cyclic shock conditions

BLIS precision trapezoidal leadscrews engineered to DIN 103 guidelines

BLIS manufactures trapezoidal leadscrews and nuts complying with DIN 103 for positioning mechanisms, clamping fixtures, and manual drives. Screws are produced by whirling or precision grinding using carbon machinery steels or corrosion-resistant stainless alloys.

Trapezoidal single and multi-start threads compliant with DIN 103 standard specs
Bearing bronze RG7, gray iron, and engineering polymer nuts in flanged forms
Superior thread surface finish minimizing kinetic sliding friction coefficients
Custom fabrication of multi-lead profiles and long leadscrew shafts up to 12 meters

BLIS custom-designed ballscrew solutions manufactured to customer drawings

BLIS specializes in tailored ballscrew systems built to custom engineering specifications: opposing right-left threads on a single shaft, high-pitch leads, heat-resistant alloys for furnace doors, and food-grade stainless steels for hygienic packaging machinery.

Opposing right-hand and left-hand threads on a single shaft for synchronous motion
Ultra-high lead thread pitches for rapid acceleration of dynamic pick-and-place arms
Corrosion-resistant stainless steel alloys for chemical processing and cleanrooms
Dedicated configurations for spot-welding robotic wrists and nuclear power plants

BLIS ball recirculation systems and deflector return mechanisms

To ensure smooth rolling kinematics, BLIS employs four recirculation methods: compact round deflectors, oval return bridges, external bypass tubes, and key-locked inserts designed to prevent dislodging under rapid acceleration and shock reversals.

Round insert deflectors lifting rolling balls smoothly over thread crest peaks
Oval return inserts engineered for compact single-start nuts with minimal profile
External tubular wrap-around ducts serving heavy-duty multi-turn thread assemblies
Keyed Passfeder retaining blocks securing deflectors against high-vibration shocks

Whirling and precision profile grinding methods for C1 to C5 ballscrew shafts

German manufacturer Blis Kugelgewindetriebe GmbH employs two specialized machining methodologies: high-velocity thread whirling and precision profile grinding of induction-hardened screw shafts.

For coordinate boring mills, jig grinders, and ultra-precision machine tools demanding C1 and C3 lead accuracy classes, full-profile thread grinding is performed with continuous laser interferometer pitch verification and dynamic shaft balancing.

For standard C5 feed drives in production milling centers, high-performance carbide insert whirling provides superior surface finish and pitch uniformity. Induction hardening achieves a surface resilience of 60 plus minus 2 HRC while maintaining a tough shaft core to absorb bending shock.

Preload arrangement selection between O-preload and X-preload configurations

In BLIS ballscrew assemblies, axial backlash elimination and enhanced kinematic stiffness are achieved through two-nut configurations arranged in either O-preload or X-preload geometry.

In O-preload setups, ball contact lines diverge outward from the assembly midpoint, providing exceptional resistance against overturning bending moments under cantilevered tool slide loads.

Conversely, the X-preload arrangement with inward-converging contact lines offers greater tolerance to minor angular misalignments of machine bed guideways.

Precise axial tension is calibrated by precision-grinding intermediate spacer rings in micron steps, preventing excessive frictional heating and jamming during rapid traverse cycles.

Lubrication regimens using circulating gear oil and long-life synthetic grease

Operating longevity and positioning repeatability of BLIS ballscrews depend directly on adequate lubricant delivery and strict maintenance schedules.

In high-speed machining centers, continuous circulating delivery of industrial lubricating oil within viscosity grades ISO VG 46 to 68 is recommended for moderate speeds, extending to ISO VG 100 to 220 under heavy cutting forces.

The required oil volume ranges from three to five cubic centimeters per hour for each loaded thread turn.

For intermittent feed mechanisms and autonomous axes, high-performance lithium grease with extreme-pressure additives is introduced through flange grease ports at intervals of 500 operating hours.

End-journal bearing mounting, laser alignment, and critical whirling speed control

When integrating long BLIS screw shafts into machinery beds, preventing lateral deflection and resonance vibration is a critical engineering priority.

Calculation of critical rotational velocity depends on journal mounting boundaries: a rigid combination of a fixed duplex angular-contact thrust bearing assembly and a floating radial support at the opposite journal increases permissible operational speed threefold compared to cantilevered retention.

During installation, laser-guided optical alignment ensures the screw axis remains parallel to linear carriage guideways within five microns per meter of travel, protecting ball nuts from edge chipping and premature raceway spalling.

Engineering architecture of BLIS Heavy Line assemblies for stamping presses

For heavy mechanical stamping presses, forging manipulators, and all-electric injection molding machines, BLIS supplies the Heavy Line series featuring shaft diameters from 80 mm up to 200 mm with static load ratings reaching 6,000 kN.

These mechanisms utilize heavy rolling balls up to 30 mm diameter circulating within deep gothic-arch raceway profiles. Flanged nut housings are forged from high-strength alloy blanks and fitted with heavy steel recirculation bypass ducts.

An individual factory mechanical test report and serial traceability engraving on each screw guarantee dimensional conformity and drop-in interchangeability during machinery retrofits.

Implementation of DIN 103 trapezoidal leadscrews and bronze flanged nuts

Alongside recirculating ballscrews, BLIS manufactures precision trapezoidal leadscrews conforming to DIN 103 specifications for low-speed vertical lifting platforms, portal columns, and fixture clamping drives.

Due to self-locking mechanics at thread lead angles below four degrees, the trapezoidal mechanism prevents unintended downward slide displacement during emergency electrical power loss.

Mating nuts are precision-machined from anti-friction tin-zinc bronze CuSn7Zn4Pb7 (RG7) or gray iron, offering high resistance to scoring, low sliding friction coefficients, and dependable longevity in industrial environments subjected to ambient dust.

What we do not claim

BLIS Kugelgewindetriebe and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of BLIS Kugelgewindetriebe and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.