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Rollers series 309-312-312P-313-313P

Rollers series 309-312-312P-313-313P
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Rollers series 309-312-312P-313-313P

Product catalog summary
Monolithic Structure: The rollers in series 309, 312, and 313 are constructed with a monolithic structure using steel tubes with tight tolerances according to DUGOMRULLI specifications. The housings are made from stamped steel plates and welded to the tube using specialized machines to ensure perfect execution and centering.
Bearings: These rollers incorporate radial rigid precision bearings from leading brands, designed for a lifespan ranging from 10,000 to 50,000 hours.
Seals: Equipped with Ermex C6 seals, these rollers protect bearings and grease from external contaminants. The seals are designed to minimize rolling resistance over long periods and under various adverse conditions, such as high speeds, temperature fluctuations, and exposure to wet, dusty, abrasive, or chemically aggressive materials.
Finish and Customization: Options include galvanization, PVC or rubber coatings, low-temperature lubrication, and various attachment configurations.
Rollers Series 309: Suitable for high-speed conveyors handling heavy materials in challenging environments. They operate within temperatures of -10°C to +90°C. The designation includes code, finish, lubrication, attachment type, and length. Rated loads are provided for a lifespan of 10,000 hours, with adjustments for longer lifespans.
Rollers Series 312: Similar to series 309, these are also used for high-speed conveyors in harsh conditions. They share the same temperature range and designation format. Load capacities are specified for a 10,000-hour lifespan, with reductions for extended use.
Weight Calculation: The weight of a roller is calculated using the formula Pr = L · a + f, where L is the length, a is the weight per mm, and f is a fixed weight.
Overview: This document provides technical specifications and guidelines for the use of roller series 309, 312, and 313, which are designed for high-speed, continuous operation in belt conveyors handling heavy materials, as well as roller conveyors for heavy unit loads in challenging environments.
Working Temperatures: The rollers are lubricated for operation between -10°C and +90°C.
Designation: The full designation of the rollers includes a code number, finish and lubrication references, attachment dimensions if different from C22, and the letter 'L' followed by the length in mm (e.g., 313062.TB L1008).
Rated Loads: A table is provided showing the load capacities of the rollers for a rated life of 10,000 hours, depending on the revolutions per minute (R.p.m.) and length (L). For longer rated lives, loads should be reduced using a specified coefficient (C).
Dimensions and Tolerances: All dimensions are subject to machining tolerances. The manufacturer reserves the right to modify products without notice.
Legal Notice: Reproduction of the catalogue's illustrations and text is prohibited under copyright law.
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Catalog excerpts

Rollers series 309-312-312P-313-313P-3

ROLLS SERIES 309 - 312 - 313 STRUTTURA MONOLITICA MONOLITHIC STRUCTURE II mantello è ricavato da un tubo in acciaio con tolleranze ristrette secondo uno specifico capitolato DUGOMRULLI. Le testate sono ricavate per imbutitura da lamiera in acciaio. La saldatura è eseguita con speciali macchine che garantiscono una perfetta esecuzione e centratura del rullo. The shell is made from steel tube with very close tolerances according to DUGOMRULLI standard specifications. The housings are made of stamped plate and welded to the tube. Welding is performed by special automatic machines which guarantee...

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Rollers series 309-312-312P-313-313P-4

Per trasportatori a nastro a funzionamento continuo, che trasportano materiali pesanti, a velocità elevate, anche in cattive condizioni ambientali.Per trasportatori a gravità con carichi molto pesanti, anche in cattive condizioni ambientali. They are used on high speed continuously operating belt conveyors handling heavy materials even in unfavourable environment conditions.Also for roller conveyors handling very heavy unit loads in unfavourable environment conditions. WORKING TEMPERATURES I rulli sono lubrificati per l’intervallo di temperatura normale: – 10°C + 90°C. Rollers series 309 are...

 Open the catalog to page 4
Rollers series 309-312-312P-313-313P-5

Code Bearing Peso al mm  Weight per mm Peso fisso L min min L L max max L Esecuzioni a richiesta Executions upon request Attacco normale Attacco a richiesta a [kg] f [kg] [mm] [mm] ZB GV PV Rl  TB Standard attachment Attachment upon request Codice Cuscinetto Peso di un rullo completo Weight of a complete roll (Peso delle parti rotanti) [kg] (Weight of rotating parts) Il peso Pr del rullo può essere calcolato mediante la formula: Pr = L · a + f [kg] The weight Pr of a roller can be calculated according to the formula below: Pr = L · a + f [kg]

 Open the catalog to page 5
Rollers series 309-312-312P-313-313P-6

Per trasportatori a nastro a funzionamento continuo, che trasportano materiali pesanti, a velocità elevate, anche in cattive condizioni ambientali. Per trasportatori a gravità con carichi molto pesanti, anche in cattive condizioni ambientali. They are used on high speed continuously operating belt conveyors handling heavy materials even in unfavourable environment conditions. Also for roller conveyors handling very heavy unit loads in unfavourable environment conditions. WORKING TEMPERATURES I rulli sono lubrificati per l’intervallo di temperatura normale: – 10°C + 90°C. Rollers series 309 are...

 Open the catalog to page 6
Rollers series 309-312-312P-313-313P-8

Per trasportatori a nastro a funzionamento continuo, che trasportano materiali pesanti, a velocità elevate, anche in cattive condizioni ambientali. Per trasportatori a gravità con carichi molto pesanti, anche in cattive condizioni ambientali. They are used on high speed continuously operating belt conveyors handling heavy materials even in unfavourable environment conditions. Also for roller conveyors handling very heavy unit loads in unfavourable environment conditions. WORKING TEMPERATURES I rulli sono lubrificati per l’intervallo di temperatura normale: – 10°C + 90°C. Rollers series 309 are...

 Open the catalog to page 8
Rollers series 309-312-312P-313-313P-10

Per trasportatori a nastro a funzionamento continuo, che trasportano materiali pesanti e di grossa pezzatura, a velocità elevate, anche in cattive condizioni ambientali. Per trasportatori a gravità con carichi molto pesanti, anche in cattive condizioni ambientali. They are used on high speed continuously operating belt conveyors handling heavy materials even in unfavourable environment conditions. Also for roller conveyors handling very heavy unit loads in unfavourable environment conditions. WORKING TEMPERATURES I rulli sono lubrificati per l’intervallo di temperatura normale: – 10°C + 90°C....

 Open the catalog to page 10
Rollers series 309-312-312P-313-313P-11

Codice Cuscinetto Code Bearing Peso al mm Weight per mm Peso fisso L min min L L max max L Esecuzioni a richiesta Executions upon request Attacco normale [kg] [kg] [mm] [mm] ZB PV Rl  TB Standard attachment Peso di un rullo completo Weight of a complete roll (Peso delle parti rotanti) [kg] (Weight of rotating parts) Il peso Pr del rullo può essere calcolato mediante la formula: Pr = L · a + f [kg] The weight Pr of a roller can be calculated according to the formula below: Pr = L · a + f [kg]

 Open the catalog to page 11
Rollers series 309-312-312P-313-313P-12

Per trasportatori a nastro a funzionamento continuo, che trasportano materiali pesanti e di grossa pezzatura, a velocità elevate, anche in cattive condizioni ambientali. Per trasportatori a gravità con carichi molto pesanti, anche in cattive condizioni ambientali. They are used on high speed continuously operating belt conveyors handling heavy materials even in unfavourable environment conditions. Also for roller conveyors handling very heavy unit loads in unfavourable environment conditions. WORKING TEMPERATURES I rulli sono lubrificati per l’intervallo di temperatura normale: – 10°C + 90°C....

 Open the catalog to page 12
Rollers series 309-312-312P-313-313P-14

Tutte le dimensioni sono soggette a tolleranze di lavorazione e benché i disegni e le illustrazioni siano fedeli, non sono tuttavia impegnativi. La DUGOMRULLI si riserva di modificare i propri prodotti senza preavviso. La riproduzione anche parziale delle figure e del testo è vietata a norma del C.C. e della legge sui diritti d’autore. All dimensions are subject to machining tolerances, and although drawings and illustrations are exact, they place the manufacturer under no obligation whatsoever. DUGOMRULLI reserves the right to modify their products at any time without notice. Even a part reproduction...

 Open the catalog to page 14
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.