ALFATEC combination guide bearings and linear profiles

Technical selection and quotation for ALFATEC motion components: Tiger combined bearings, Mammut heavy rollers, ALFA-Speed rollers and structural guide channels.

Tiger combination guide bearings (TR050 to TR180 series)

Heavy-duty combined roller bearings from ALFATEC designed for industrial lifting masts and material handling conveyors. Each unit integrates a radial cylindrical roller with an axial guide roller within a solid steel hub to support complex multidirectional dynamic forces.

Standard Tiger roller sizes from TR050 through TR180 with diameters up to 180 mm
Radial static load capacities exceeding 100 kN per individual bearing assembly
Precise axial clearance adjustment using precision shim rings beneath end caps
Mounting onto carriage frames via weldable or flanged steel hubs BQ and BR

Mammut heavy-duty guide bearings and Xtra-Strong series

Specialized high-capacity roller bearings engineered for steel mill equipment, heavy crane trolleys and transfer gantry platforms. Reinforced internal geometry and induction hardened raceways reliably carry technology structures with cumulative weights up to 200 metric tons.

Heavy-duty Mammut MR series roller assemblies with outer diameters up to 340 mm
Tigerrolle Xtra-Strong series offering 35 percent higher axial load capability
High-tensile micro-alloyed steel construction with deep induction hardening
Integrated labyrinth and contact sealing preventing scale and dust ingress

ALFA-Speed high-velocity guide rollers with Vulkollan polyurethane

High-speed guide rollers featuring a thick Covestro Vulkollan elastomer tire engineered for automated storage warehouses and sorting conveyors. Delivering quiet travel at linear velocities up to 6 m/s with minimal rolling friction and outstanding damping properties.

Premium Vulkollan polyurethane tread with 93 to 95 Shore A wear-resistant compound
Travel speeds reaching 6 m/s without thermal degradation of the elastomer layer
Wide ambient operating temperature window maintaining flexibility from -20 to +80 C
Configurations available with internal steel roller or low-wear Oilamid slider

Guide profiles UP, XUP, MP and stainless steel tracks

Calibrated steel structural profiles in standard U-channel and I-beam configurations providing rigid trackways for material handling carriages. Rolled from micro-alloyed structural steel 18MnNb6 with precision machined interior surfaces tailored to match guide rollers.

Standard U-channels across UP series and heavy-wall XUP beams for Tiger rollers
Flanged I-profiles in MP and INP configurations for heavy vertical lift masts
Corrosion-resistant stainless steel variants for food and chemical plants
Standard track section lengths up to 12 meters with milled square end faces

Adjustable guide units FE and heavy-duty XSFE assemblies

Factory assembled carriage blocks mounted on rigid steel base plates equipped with eccentric adjustment mechanisms. Enabling fast setup and accurate alignment between rollers and structural guide channels with operational running clearances down to 0.2 mm.

Pre-assembled FE series carriage assemblies featuring paired guide bearings
Heavy-duty XSFE series units handling elevated cantilever bending moments
Dual-side eccentric adjustment for balanced load distribution along the rail
Standardized hole patterns for rapid mechanical integration onto machine frames

Heavy linear units, telescopic masts and ALFALIFT vertical lifters

Complete electromechanical motion units for vertical and horizontal payload positioning built around proven ALFATEC guide components. Extensively implemented across automated stacker cranes, pallet elevators, telescopic fork systems and transfer shuttles.

Vertical telescopic lift masts driven by heavy-duty timing belts or roller chains
Compact low-profile lift columns tailored for automated guided vehicles and AMRs
Modular ALFALIFT pallet lifting stations and multi-level vertical elevators
Heavy cross-transfer shuttle cars supporting payloads of dozens of metric tons

Design principles of Tiger combination guide bearings

ALFATEC Tiger combined roller bearings integrate a heavy cylindrical roller and an axial guide roller within a one-piece steel hub.

The outer radial bearing supports primary vertical payloads from the moving carriage, distributing forces across structural channel flanges, while the internal axial roller centers the assembly and absorbs overturning tilting moments without tilting raceway paths.

To fine-tune operational axial clearance, a set of precision steel shims is positioned beneath the end cap. This mechanism compensates for machine fabrication tolerances and establishes optimum pre-load across the guide assembly.

Mammut heavy roller series and reinforced Xtra-Strong units

For steel mills, heavy crane trolleys and transfer gantries, ALFATEC engineers the Mammut line and upgraded Tigerrolle Xtra-Strong bearings.

Utilizing enlarged rolling elements, thickened outer rings and micro-alloyed bearing steel with deep induction heat treatment, the Xtra-Strong series delivers thirty-five percent higher axial dynamic ratings relative to standard units.

Mammut MR series bearings are engineered for integration within large-scale processing equipment supporting cumulative static and dynamic payloads reaching two hundred metric tons while maintaining smooth linear trajectories.

High-speed ALFA-Speed rollers with Vulkollan polyurethane

ALFATEC ALFA-Speed guide rollers are developed for automated warehouse systems, high-speed sorting lines and shuttle vehicles.

The roller contact rim is vulcanized with a thick Covestro Vulkollan polyurethane tread rated at 93 to 95 Shore A hardness, ensuring high elasticity, exceptional abrasion resistance and vibration damping during acceleration cycles.

ALFA-Speed rollers operate continuously at linear speeds up to 6 m/s without thermal softening of the polymer compound. Low rolling drag lowers servo motor energy consumption, while the broad temperature window from -20 to +80 C accommodates unheated cold logistics facilities.

Selection and alignment of UP and MP structural guide channels

ALFATEC guide profiles are rolled from micro-alloyed structural steel grade 18MnNb6 followed by precision straightening and calibration of internal contact tracks.

Standard U-channels in the UP and XUP series enclose Tiger rollers, creating a compact shielded runway that resists debris and side deflection of moving parts.

Flanged I-beams in the MP and INP lines provide rigid backbones for heavy vertical telescopic masts and guide columns. For corrosive chemical and food plant conditions, stainless steel variants eliminate oxidation along running surfaces.

Aligning FE guide carriages and heavy-duty XSFE modules

Pre-assembled ALFATEC FE and XSFE guide carriages come mounted on rigid steel baseplates and integrate paired radial and lateral guide bearings.

A key feature of the XSFE series is an integrated eccentric adjustment mechanism on the side roller, allowing technicians to dial running clearances down to 0.2 mm without shimming plates.

Dual-sided eccentric adjustment prevents uneven bearing fatigue and carriage skewing under alternating directional thrusts. Rigid flange plates withstand elevated cantilever overturning moments generated by offset payloads.

Submitting engineering specifications for component matching

To ensure prompt component selection and cross-referencing, provide the complete alphanumeric model code from the bearing stamping or assembly drawing (such as TR070.0200, XTR090.0400BR1100, AS050.0360, UP080.0780 or XSFE110).

If marking is obscured, state roller diameter, hub pin dimensions, channel width and design load.

Our engineering team reviews ALFATEC GmbH Fördersysteme manufacturing databases, verifies geometric interchangeability and prepares commercial quotation documents specifying delivery timeframes.

ALFATEC 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 ALFATEC and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.