Rare model bearing supply

• Bearing Kingdom Group has more than 1,000,000 bearing products from the world's most trusted bearing brands, including SKF, FAG, Timken, RHP, NSK, INA, NTN, NACHI, NMB, KOYO, THK, and IKO.
  
  After receiving the demand, we can provide you with an accurate quotation within 24 hours.
  
  We offer a wide range of different bearings, including deep groove ball bearing, angular contact ball bearing, thrust bearing, pillow block bearings, linear bearing, roller bearing, ceramic bearings, flange bearing, needle bearing, pillow block etc.
  
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306891 Bearing

bearings 4203

305283 bearing

bearing 305183

bearing 305272

bearing QJ 236 N2MA

bearing QJ 1072 N2MA

1205 ETN9 bearing

2306EKTN9 bearing

1224 M bearing

51308 bearings

51110 bearings

bearings 51126

52218 bearings

52230 M bearings

52408 bearing

22222E bearing

bearings 24040 K30 W33

22332 CA/C3/W33 bearing

22244CA/C3W33 bearing

bearing 22210 EK + H 310

22316 EK + H 2316 bearing

bearing 21318 EK + H 318

23228 CCK/W33 + H 2328 bearing

bearing 21308 EK + AH 308

bearing 23132 CCK/W33 + AH 3132 G

bearing 23244 CCK/W33 + AOH 2344

33212JR bearings

HM252348/HM252310  bearings

NA94700/NA94114CD bearings

M241547/M241510D bearings

M667947DW.911 bearings

bearings 525090

M667947DW.910.910D bearings

bearings 67791DW.720.721D

bearing M270749DGW.710.710D

bearings NN3006

bearings NN3024

bearings NCF2940

bearings NNC4928

bearings NNF5032

bearings SL192316

bearings SL183008

bearings SL045008-PP

29432  bearings

29418E  bearings

29424  bearings

353124A bearings

bearings T511

bearings C3156

C3152C3 bearings

bearing C 2314 K + H 2314

bearings C 3056 K + AOH 3056

315976B bearings

319254 bearings

313891 bearings

316083 A bearings

bearings 315189 A

802047M bearings

802117 bearings

bearings 010.20.280

bearings 011.30.1000

bearings 013.40.2240

bearings RK6-33N1Z

bearings HS6-25P1Z

bearings HT10-48P1Z

bearings MTE-540

bearings KH-166E

bearings 16314001

bearings 110.40.2240

bearings 112.28.1000

bearings 114.40.2800

bearings 020.40.1250

bearings 021.60.3150

bearings 024.25.630

bearings 130.25.560

bearings 131.25.630

bearings 134.25.630

NUTR40 bearings

NUTR-45100-A SKF

NUTR-50110-A bearings

NATR 17 PPA bearings

bearings KR5203-2RS

bearings PWKR62-2RS

bearings ZL5205-DRS

bearings ZLE5207-2Z

YAR 205-2F bearings

GE300 FZ5/K0 bearings

bearings GE110ES

Bearings Housings SNV240-F-L FAG

Bearings Housings SNL505

Bearings Housings SNLN3034

Bearings Housings SNL3134

Bearings Housings SONL 240-540

Bearings Housings SAF 1308

Bearings Housings SDAF 22322

Bearings UNITS SY 15 TF

Bearings Housings SY 503 M

Bearings UNITS FY 3/4 TF

Bearings Housings FY 504 M

H2314 Adapter Sleeves

Adapter Sleeves HE309

Precision Bearing HC7016C.T.P4S.UL

Precision Bearing HCS7008E.T.P4S.UL

Precision Bearing HCB7000C.T.P4S.UL

Precision Bearing B7004E.T.P4S.UL

Precision Bearing HS7005E.T.P4S.UL

Precision Bearing HSS7006C.T.P4S.UL

7008 CTYNSULP4 Bearing

7202 CTYNDULP4 Bearing

Bearing 35BNR10XTYNDBBCA1

High Precision Bearing 45BNR10STYNDBBELP4

35BNR10STYNDBBCA1 Precision Bearing

HTA011UGLP4L Precision Bearing

N1010HS Bearing

N1011HSK Bearing

Precision Bearing N1012RXTPKRCC0P4

High Precision Bearing NN3017TBKRCC0P4

High Precision Bearing 100BAR10STYNDBLP4A

High Precision Bearing 140TAC20D+L

Precision Bearing 17TAC47BSUC10PN7B

bearings 20TAC47BSUC10PN7B

Precision Bearing 30TAC02AT85SUMPN5D

bearings 6317 MC3VL0241

bearings 6324 C3VL2071

bearings NU 310 ECM/C3VL0241

bearings NU 328 ECM/C3VL2071

bearings 6201-2Z/VA201

bearings 6206-2Z/VA208

Bearings W6305

Bearings SS6208

Bearings KAA10AG0

Bearings KB075CP0

Bearings KF120XP0

Bearings JB065CP0

Bearings JU110XP0

Bearings JG300CP0

Bearings SA050AR0

Bearings SB100CP0

Bearings SC180XP0

Insulated deep groove ball bearing 6322/C3VL0241

Electrically insulated bearings use a special spraying process, which sprays a high-quality coating on the outer surface of the bearing. The coating has a strong binding force with the substrate and good insulation performance. It can avoid the galvanic effect of the induced current on the bearing and prevent the current from affecting the grease and rolling elements. , Damage caused by raceway, improve bearing life. This process is constantly being improved. In insulated bearings, there is a 100 μm thick coating on the outer or inner ring surface, which can withstand a voltage of up to 1000 V DC. The special spraying process can form a layer with uniform thickness and strong adhesion, and then undergo further treatment to make it not affected by moisture and humidity.


Insulation inspection of insulated bearings
1. Purpose and scope of inspection

In order to ensure the insulation performance, the insulation of the insulated bearing needs to be measured, which includes the insulation resistance, shaft voltage and shaft current of the bearing. The purpose of measuring the motor shaft voltage is to understand the size of the motor shaft current; the purpose of measuring the motor shaft current is to directly obtain the value of the current flowing through the motor bearing.

Because the damage of the shaft current mainly occurs in the motors and ordinary large and medium-sized high-voltage motors powered by the frequency conversion power supply of the frame size 280 and above. Therefore, this inspection is generally only carried out when improving the design of these types of motors during the initial trial production or for individual motors that have found that the shaft current has a serious impact on the bearings.

2. Measurement of insulation resistance of insulated bearings

When measuring, the bearing can be carried out separately, but it is best to install the bearing on the rotating shaft. Insulation resistance meter with 250V specification is generally selected. Connect the E end of the instrument to the rotating shaft; after the insulating part of the bearing (such as the outer ring) is covered with aluminum foil, fix the aluminum foil with bare copper wire and then connect it to the L end of the instrument; or install the insulated bearing into the bearing seat or motor end In the cover bearing room, the insulation resistance between the rotating shaft and the bearing housing or the motor end cover is measured in a state where there is no electrical path between the bearing housing or the motor end cover and the rotating shaft where the insulated bearing is installed. The measurement operation is exactly the same as measuring the insulation resistance of the motor and windings to ground. [1]

3. Measuring method of bearing current

For motors with rolling bearings, the shaft current is measured as shown below. Install an insulating ring between the bearing at the non-shaft-extending end of the motor and the casing (dry insulating sheets are inserted between the bearing and the rotating shaft) or use an insulated bearing to ensure good insulation of the motor bearing.

Bearing current measurement method Bearing current measurement method

Connect the ammeter to the metal parts that are in contact with the bearing insulation on both sides, run at no load at the rated voltage and rated frequency, and measure the current value, that is, the shaft current.

For motors using sliding bearings and rolling bearings, if the above method cannot be measured, the method of placing a current transformer on the shaft can be used to measure the shaft current. [2]


product category
Electrically insulated deep groove ball bearings

Electrically insulated angular contact ball bearings

Electrically insulated cylindrical roller bearings

Insulated bearing with inner or outer ring with oxide coating

Hybrid bearing with electrically insulating ceramic rolling elements


Size range
1. Electrically insulated deep groove ball bearings

Inner diameter size range: 40mm～140mm

Outer diameter size range: 80mm～300mm

Width size range: 18mm～62mm

2. Electrically insulated angular contact ball bearings

Inner diameter size range: 40mm～140mm

Outer diameter size range: 80mm～300mm

Width size range: 18mm～62mm

3. Electrically insulated cylindrical roller bearings

Inner diameter size range: 45mm～140mm

Outer diameter size range: 100mm～300mm

Width size range: 25mm～62mm

Split bearings

Type	Model	d (mm)	D (mm)	W (mm)	KG (kg)
Split bearings	412740	200	368.3	156.369	75kg
Split bearings	422740	200	368.3	156.369	75kg
Split bearings	222Sm55T	55	110	28	1.7
Split bearings	222SM60T	60	120	31	2.7
Split bearings	222SM65T	65	130	31	2.8
Split bearings	222SM70T	70	140	33	3
Split bearings	222SM75T	75	150	36	4
Split bearings	222SM80T	80	160	40	4.9
Split bearings	222SM85T	85	170	43	5.7
Split bearings	222SM90T	90	180	46	6.1
Split bearings	222SM100T	100	200	53	9.8
Split bearings	230SM100MA	100	180	56	7.6
Split bearings	230SM110MA	110	180	46	7
Split bearings	231SM110MA	110	200	62	9.55
Split bearings	222SM110T	110	215	58	10.7
Split bearings	230SM115MA	115	210	64	11.2

High temperature bearings

MODEL	d (mm)	D (mm)	b (mm)	Cr (kN)	Cor (kN)	Grease lubrication speed (r/min)	Oil lubrication speed (r/min)	weight (kg)
970312	50	110	27	-	-	-	-	1.30
970203	17	40	12	-	-	-	-	0.10
970204	20	47	14	-	-	-	-	0.13
970205	25	52	15	-	-	-	-	1.19
970206	30	62	16	-	-	-	-	2.0
970207	35	72	17	-	-	-	-	1.28
970209	45	85	19	-	-	-	-	1.66
970210	50	90	20	-	-	-	-	2.0
970211	55	100	21	-	-	-	-	2.6
970212	60	110	22	-	-	-	-	2.9
970213	65	120	23	-	-	-	-	3.0
970214	70	125	24	-	-	-	-	3.0
970215	75	130	25	-	-	-	-	3.3
970216	80	140	26	-	-	-	-	3.8
970305	25	62	17	-	-	-	-	0.3
970306	30	72	19	-	-	-	-	0.4
970310	50	110	27	-	-	-	-	1.5
970315	75	160	37	-	-	-	-	3.2
970314	70	150	35	-	-	-	-	2.75
970309	45	100	25	-	-	-	-	0.88