Ball Bearings Open Type

· Light load, medium/low speed, dedicated for medium precision rotation, achieving ultra-low price.
· It is made of industry standard bearing steel with high surface hardness and wear resistance.
· The vibration class of the product is above Z1

■Precautions when selecting
· Differences in specifications between MISUMI high-quality bearings and economy bearings [B6901ZZ (MISUMI quality bearing) and C-E6901ZZ (MISUMI economy bearing)]

Key points of economy series products confirmation

Inner Diameter d (mm)		Clearance of MISUMI quality products (µm)		Clearance of economy series products (µm)
or More	or Less	Minimum	Max.	Minimum	Max.
Only 10		2	13	4	18
10	18	3	18	6	23
18	24	5	20	8	25
24	30	5	20	8	25
30	40	6	20	9	25
40	50	6	23	9	28

 

Part Number		Inner Diameter d	Outer Diameter D	Width B	r (min.)	Key points of economy series products confirmation Basic rated load		Allowable Speed rpm (Reference)	Mounting Dimensions				Weight (g) (reference)
Type	No.					Cr (Dynamic) N	Cor (Static) N		Ds		dh	R
									(min.)	(max.)	(max.)	(max.)
C-E	6700	10	15	3	0.2	850	430	15000	10.4	11.21	14.2	0.2	2
	6800		19	5	0.3	1716	840	24000	12	12.5	17	0.3	6
	6900		22	6		2695	1273	22000		13	20		10
	6000		26	8		4550	1970	21000		13.5	24		18
	6200		30	9	0.6	5100	2390	17000	14	16	26	0.6	32
	6701	12	18	4	0.2	926	530	13000	12.4	13.86	16.7	0.2	4
	6801		21	5	0.3	1915	1041	22000	14	14.5	19	0.3	7
	6901		24	6		2886	1466	21000		15	22		10
	6001		28	8		5100	2370	20000		16	26		22
	6201		32	10	0.6	6800	3050	15000	16	17	28	0.6	37
	6702	15	21	4	0.2	937	582	11000	15.4	16.86	19.7	0.2	4
	6802		24	5	0.3	2073	1253	20000	17	17.5	22	0.3	9
	6902		28	7		4321	2259	18000			26		15
	6002		32	9		5600	2830	17000		19	30		31
	6202		35	11	0.6	7650	3750		19	20	31	0.6	45
	6703	17	23	4	0.3	1000	658	18000	18	18.5	22	0.3	5
	6803		26	5		2233	1456		19	19.5	24		9
	6903		30	7		4588	2565	17000		20	28		10
	6003		35	10		6000	3250	15000		21	33		41
	6203		40	12	0.6	9550	4800	12000	21	23	36	0.6	67
	6704	20	27	4	0.3	1402	729	8500	20.4	22.36	25.5	0.3	6
	6804		32	7		4015	2462	15000	22	22.5	30		18
	6904		37	9		6381	3682	13000		24	35		40
	6004		42	12	0.6	9400	5000		24	26	38	0.6	68
	6204		47	14	1	12800	6600	11000	25	28	42	1	107
	6705	25	32	4	0.3	1091	838	8500	26	27	31	0.3	8
	6805		37	7	0.3	4303	2932	13000	27	28	35	0.3	24
	6905		42	9		7001	4540	11000		29	40		47
	6005		47	12	0.6	10100	5850		29	30.5	43	0.6	79
	6205		52	15	1	14000	7850	9000	30	32	47	1	129
	6706	30	37	4	0.3	1143	947	8500	31		35.5	0.3	9
	6806		42	7		4538	3402	11000	32	33	40		27
	6906		47	9		7242	5003	10000		34	45		53
	6006		55	13	1	13200	8300	9000	35	37	50	1	116
	6206		62	16		19500	11300	8000		39	57		199
	6707	35	44	5	0.3	1866	1635	8500	37	38	42	0.3	15
	6807		47	7		4729	3821	10000			45		32
	6907		55	10	0.6	10900	7818	8000	39	40	51	0.6	88
	6007		62	14	1	16000	10300		40	42	57	1	151
	6207		72	17	1.1	25700	15300	7000	41.5	45	65.6		284
	6708	40	50	6	0.3	2516	2233	8000	42	43	48	0.3	23
	6808		52	7		4923	4178				50		35
	6908		62	12	0.6	13678	9968		44	45	58	0.6	132
	6008		68	15	1	16800	11500	7000	45	47	63	1	190
	6208		80	18	1.1	29100	17900	6000	46.5	51	73.5		366
	6709	45	55	6	0.3	2580	2397	8000	47	48	53	0.3	25
	6809		58	7		6187	5381			47.5	56		42
	6909		68	12	0.6	14100	10830	7000	49	50	64	0.6	148
	6009		75	16	1	20900	15200	6000	50.8	52	69.2	1	241
	6209		85	19	1.1	31500	20400	5000	52	54	78	1.1	420
	6810	50	65	7	0.3	6610	6090	7000		52.5	63	0.3	65
	6910		72	12	0.6	14540	11710	6000	54	55	68	0.6	145
	6010		80	16	1	21800	16600		55	57.5	75	1	261
	6210		90	20	1.1	35000	23200	5000	56.5	60	83.5		459

kgf = N × 0.101972
C-E6008, C-E6010, C-E6208, C-E6210, and C-E6908 are temporarily not for sale.

・The interface radius of the channel located on the inner and outer ring is slightly larger than the radius of the sphere, in arc shape. Mainly supports radial loads.
· In addition to the open type bearings, there are bearings with steel dust cover, bearings with contact rubber seal packing and bearings with non-contact rubber seal packing, or bearings with stop ring on the outer diameter of outer ring.
Ball bearings with dust cover or seal packing are sealed with proper amount of high-quality grease. Deep groove ball bearings generally adopt steel plate stamped cage, which has low friction torque and accuracy grade of 0.

■ Features of MISUMI Economy Bearings
(1) Why are all MISUMI Economy Bearings tested for noise and vibration? And we insist on making our products at "Z1" grade or above
 Through testing the noise and vibration of bearings, it is possible to detect defects. Bearing vibration is classified into Z0, Z1, Z2, Z3, and Z4 levels (the higher the grade, the lower the noise and vibration).


(2) Why does MISUMI insist on using 'standard wall thickness' for economy bearings?


(3) Why does MISUMI insist on using high-performance "bearing steel" and "stainless steel" materials for its economy bearings?

*Products circulating on the market are similar products randomly purchased by our company from online or offline markets
* The test data are obtained through testing by our company, which are for reference only

When the precision of the shaft and bearing housing is poor, the bearing will be affected, and its due performance will not be exerted. For example, the poor precision of the mounting part with the bearing will cause relative inclination of the inner and outer rings. At this time, besides the bearing load, the edge load will be increased additionally, which will shorten the fatigue life of the bearing, and even more seriously, it will lead to damage such as cage breakage and sticking.

Please use the following special mounting tool for installation and removal

Bearing heater

Proper installation of the bearing heater can guarantee a long life of the bearing. Rolling bearings are reliable mechanical components with long service life if they are installed and maintained correctly. After the induction heater is used for heating, the bearing expands outward in the cylindrical direction, which can avoid the damage during installation. Induction heater is one of the most scientific heating methods, which does not need preheating, and can be heated to 110℃ in a few seconds or minutes depending on the weight of bearings, without damaging the prior lubrication

Bearing puller

When the installation state of the bearing is in the following situations, the special puller can be used for disassembly. (a) Shaft shape: cylindrical shaft, Inner diameter shape of bearing inner ring: cylindrical hole. (b) Shaft shape: cylindrical shaft, inner diameter shape of bearing inner ring with tight bushing: tapered hole. (c) Shaft shape: tapered shaft, Inner diameter shape of bearing inner ring: tapered hole. In either state, the lock nut of the shaft (or the lock nut of the tight bushing) must be released during disassembly, and the lock nut must be placed in a loose state.

MISUMI, the head office company, has been providing customers with various high-quality parts such as automation parts, mold parts, electronic parts, tool & consumables, etc. quickly and accurately since its establishment in Japan in 1963. By compiling product catalogs independently and establishing a marketing system for direct sales of products, a low-cost business operation mode has been created, and by making annual product plans according to customers' opinions and requirements, MISUMI brand-name products with high quality level have been continuously developed.

MISUMI established MISUMI Precision Machinery Co., Ltd. in China in June 2003, and then changed its name to MISUMI (China) Precision Machinery Trading Co., Ltd. in June 2007, with its headquarters in Shanghai. Since the beginning of the stamping die standard parts business, the businesses of FA standard parts, plastic die standard parts and machining tools have been officially started successively, and the rapid development of MISUMI in China has won the full support of customers. China's manufacturing industry has unlimited prospects, which is why China's manufacturing industry market has become one of the most competitive industries in the world.
MISUMI's business philosophy came into being - the key to the future development of China's manufacturing industry lies in cost competitiveness, "quality" and "time".
MISUMI's product quality is built by MISUMI in Japan in its 40-year business history. We offer world-class quality at very competitive prices. The delivery time marked in the catalog is agreed upon between us and our customers. Our strict compliance with delivery time has reached 99.96%. For MISUMI, customers’ time is the most precious resource, so we keep our promise strictly.

MISUMI will join hands with customers who value quality and time, and contribute our wisdom and strength to the development of China's manufacturing industry.