Logo-Rima-Spa

Ballbearing turntables and slewing rings

For over 25 years, Rima slewing rings and ballbearing turntables have proven their worth in the most varied areas of application: from earthmoving machinery to lifting equipment and agriculture.

For every field of application we have the right option in our catalogue. Each slewing ring can also be customised in diameter and dimensions, drilling pattern, gear and heat treatments.

Custom drilling patterns

Custom gear type and heat treatments

Compliant to standards
ISO 5216:2024

Rima Spa custom slewing ring Slewing rings, Basic bearings, ball slewing rings, toothed bearings, sprockets, bearings, slewing rings | RIMA S.p.A.

Ballbearing turntables

The advanced technology used in production and the certification of the manufacturing process make GRUPPO RIMA product’s exceptionally reliable in terms of construction and performance and appreciated in the trailer market due to their precision and reliability.

Hundreds of customers (both OEM market leaders as well as end users) have chosen to equip their machines throughout the years with GRUPPO RIMA products entrusting their trailers to their high standard quality and durability.

Our I90-Series and I90/2-Series are our ball bearing turntables for industrial applications, operating at speeds exceeding 60 km/h. We have two lines with one or two rows, both with a 90 mm high profile and with a diameter from 900 to 1300 mm.

Industrial ballbearings

We design and manufacture Z-profile ballbearing turntables with a diameter between 400 and 1100 mm and with a profile of 52 or 60 mm high. Each ballbearing turntable can be customised on request with specific diameters, profile, holes, greases and materials.

Z-profiled

We design and manufacture ballbearing turntables for light applications with a diameter between 300 and 1200 mm and with a profile from 55 to 90 mm high. Each ballbearing turntable can be customised on request with specific diameters, profile, holes, greases and materials.

For agriculture

Slewing rings

Outer geared standard slewing rings with single or double row, with or without internal flange and with external diameter from a minimum of 300 mm to a maximum of 1800 mm.
Products

Outer geared

Inner geared standard slewing rings with single or double row, with or without external flange and with external diameter from a minimum of 300 mm to a maximum of 1600 mm.
Products

Inner geared

Ungeared standard slewing rings with single or double row, with or without flange and with external diameter from a minimum of 300 mm to a maximum of 1600 mm.
Products

Ungeared

Customisation

Design and production flexibility is the guiding key with which we work alongside customers in the sector to identify innovative and effective solutions.

We communicate with our customers daily, understanding their needs, and offering expert advice for tailor made solutions.

It is possible to customise the slewing rings in every detail, from material characteristics to the definition of loads, dimensions, diameters, from the type of toothing to the definition of the number of teeth, from lubrication points to drilling patterns and even heat and surface treatments.

Characteristics and loads
Diameter and number of teeth
Lubrication points
Drilling Patterns
Heat treatments

Heat treatments

The rotating ring ofthe slewing ring spreads the loads to the raceway; this is calculated and verified based on the Hertz Theory and the modem system of plasticity. The hardening treatment is applied based on our calculation facts and the specifics of slewing ring application.

Hardening treatment on gear is possible when this is necessary or strictly required by the customer.

Teeth side hardening

Raceway hardening

Know how and production technologies

Sirca Sa is one of Gruppo Rima production site and is located in Pietra Neamt, Romania. Sirca manages all the processing phases of the ballbearing turntables and slewing rings, from raw materials quality check to the painting.

The continuous improvement of the systems and their customization with flexible technologies combined with a deep engineering knowledge, allow us to build complex and extremely specific components with maximum reactivity and adaptability to the needs and standards of the market.

Discover

Are you looking for a custom designed product?

We have always differentiated ourselves for the very high customization in small and large batches

Contact us