Idler Bearings

Idler life is a function of many factors, such as belt speed, shell thickness, seals, and bearings. The idler load and rating of a bulk material handling belt conveyor system depend on the rating of the bearing. The table below covers standard-bearing dimensions used on typical conveyor idlers.

Table
Flag and Issue

Pu (kN) (kN)	C0 (kN) (kN)	C (kN) (kN)	Limiting speed r/min (r/min)	Reference speed r/min (r/min)	Designation	d - shaft series (mm) (mm)	D (mm) (mm)	B (mm) (mm)	Applicable Standards
0.212	5	9.95	24000	38000	6004	20	42	12
0.173	4.05	7.28	24000	38000	16004	20	42	8
0.28	6.55	13.5	20000	32000	6204	20	47	14
0.335	7.8	16.8	19000	30000	6304	20	52	15
0.275	6.55	11.9	20000	32000	6005	25	47	12
0.212	4.75	8.06	20000	32000	16005	25	47	8
0.49	11.6	23.4	16000	24000	6305	25	62	17	SANS 1313-1
0.31	7.35	11.9	17000	28000	16006	30	55	9
0.67	16	29.6	13000	20000	6306	30	72	19	SANS 1313-1
0.355	8.3	13.8	17000	28000	6006	30	55	13
0.475	11.2	20.3	15000	24000	6206	30	62	16	SANS 1313-1
0.375	8.15	13	15000	24000	16007	35	62	9
0.655	15.3	27	13000	20000	6207	35	72	17
0.44	10.2	16.8	15000	24000	6007	35	62	14
0.815	19	35.1	12000	19000	6307	35	80	21	SANS 1313-1
0.815	19	35.1	12000	19000	6307 M	35	80	21	SANS 1313-1
0.44	10.2	13.8	14000	22000	16008	40	68	9
0.49	11	17.8	14000	22000	6008	40	68	15
0.8	19	32.5	11000	18000	6208	40	80	18
1.02	24	42.3	11000	17000	6308	40	90	23	SANS 1313-1
0.335	7.8	14.8	18000	28000	6205	25	52	15	SANS 1313-1

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Idler Bearings

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