Spherical roller bearing 21318EK

Designation	Dimension	Remark
d	90.00 mm	shaft diameter
D	190.00 mm	outer diameter
B	43.00 mm	width
d₂	112.00 mm	Inner ring shoulder diameter
D₁	150.00 mm	Turning diameter of the outer ring
b	8.30 mm	Width of the circumferential groove
d_{a min.}	104.00 mm	diameter of the shaft contact surface
r_{a max.}	2.50 mm	rounding radius

Designation	Dimension	Remark
C_r	380,000 N	dynamic load rating, radial
C_0r	450,000 N	static load rating, radial
C_ur	46,500 N	fatigue limit load, radial
n_R	3,600 min^-1	reference speed
n_G	4,800 min^-1	limit speed
	6.100 kg	Weight

Designation	Dimension										Performance data
	d	D	B	d₂	D₁	r_min	d_{a min.}	d_{a max.}	D_{A max.}	r_{a max.}	C_r	C_0r	C_ur	n_R	n_G
	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	N	N	N	min^-1	min^-1
21306CCK	30.00	72.00	19.00	43.30	58.80	-	37.00	-	65.00	1.00	64,000	61,000	6,800	8,200	10,000
21306MBK/C3	30.00	72.00	19.00	43.30	58.80	-	37.00	-	65.00	1.00	55,200	61,000	6,800	7,500	10,000
21306CCK/C3	30.00	72.00	19.00	43.30	58.80	-	37.00	-	65.00	1.00	55,200	61,000	6,800	7,500	10,000
21306CAK/C3	30.00	72.00	19.00	43.30	58.80	-	37.00	-	65.00	1.00	55,200	61,000	6,800	7,500	10,000
21306CAK	30.00	72.00	19.00	43.30	58.80	-	37.00	-	65.00	1.00	55,200	61,000	6,800	7,500	10,000
21306MBK	30.00	72.00	19.00	43.30	58.80	-	37.00	-	65.00	1.00	55,200	61,000	6,800	7,500	10,000
21307MBK	35.00	80.00	21.00	47.20	65.60	-	44.00	-	71.00	1.50	65,600	72,000	8,150	6,700	9,500
21307MBK/C3	35.00	80.00	21.00	47.20	65.60	-	44.00	-	71.00	1.50	65,600	72,000	8,150	6,700	9,500
21307CCK/C3	35.00	80.00	21.00	47.20	65.60	-	44.00	-	71.00	1.50	65,600	72,000	8,150	6,700	9,500
21307CAK/C3	35.00	80.00	21.00	47.20	65.60	-	44.00	-	71.00	1.50	65,600	72,000	8,150	6,700	9,500
21307CAK	35.00	80.00	21.00	47.20	65.60	-	44.00	-	71.00	1.50	65,600	72,000	8,150	6,700	9,500
21307CCK	35.00	80.00	21.00	47.20	65.60	-	44.00	-	71.00	1.50	76,500	72,000	8,150	7,300	9,500
21308MBK	40.00	90.00	23.00	59.90	79.00	-	49.00	-	81.00	1.50	104,000	108,000	11,800	7,000	9,500
21308EK	40.00	90.00	23.00	60.00	79.80	-	49.00	-	81.00	1.50	104,000	108,000	11,800	7,000	9,500
21308CAK	40.00	90.00	23.00	59.90	79.00	-	49.00	-	81.00	1.50	104,000	108,000	11,800	7,000	9,500
21308CAK/C3	40.00	90.00	23.00	59.90	79.00	-	49.00	-	81.00	1.50	104,000	108,000	11,800	7,000	9,500
21308EK/C3	40.00	90.00	23.00	59.90	79.00	-	49.00	-	81.00	1.50	104,000	108,000	11,800	7,000	9,500
21308MBK/C3	40.00	90.00	23.00	59.90	79.00	-	49.00	-	81.00	1.50	104,000	108,000	11,800	7,000	9,500
21309EK	45.00	100.00	25.00	65.30	88.00	-	54.00	-	91.00	1.50	125,000	127,000	13,700	6,300	8,500
21309CAK	45.00	100.00	25.00	65.30	87.90	-	54.00	-	91.00	1.50	125,000	127,000	13,700	5,300	7,000
21309CAK/C3	45.00	100.00	25.00	65.30	87.90	-	54.00	-	91.00	1.50	125,000	127,000	13,700	5,300	7,000
21309EK/C3	45.00	100.00	25.00	65.30	87.90	-	54.00	-	91.00	1.50	125,000	127,000	13,700	5,300	7,000
21309MBK/C3	45.00	100.00	25.00	65.30	87.90	-	54.00	-	91.00	1.50	125,000	127,000	13,700	5,300	7,000
21309MBK	45.00	100.00	25.00	65.30	87.90	-	54.00	-	91.00	1.50	125,000	127,000	13,700	5,300	7,000
21310CAK/C3	50.00	110.00	27.00	72.60	96.00	-	61.00	-	99.00	2.00	156,000	166,000	18,600	5,600	7,500
21310EK/C3	50.00	110.00	27.00	72.60	96.00	-	61.00	-	99.00	2.00	156,000	166,000	18,600	5,600	7,500
21310MBK/C3	50.00	110.00	27.00	72.60	96.00	-	61.00	-	99.00	2.00	156,000	166,000	18,600	5,600	7,500
21310CAK	50.00	110.00	27.00	72.60	96.00	-	61.00	-	99.00	2.00	156,000	166,000	18,600	5,600	7,500
21310MBK	50.00	110.00	27.00	72.60	96.00	-	61.00	-	99.00	2.00	156,000	166,000	18,600	5,600	7,500
21310EK	50.00	110.00	27.00	72.70	96.80	-	61.00	-	99.00	2.00	156,000	166,000	18,600	5,600	7,500
21311CAK/C3	55.00	120.00	29.00	72.60	96.00	-	66.00	-	109.00	2.00	156,000	166,000	18,600	5,600	7,500
21311CAK	55.00	120.00	29.00	72.60	96.00	-	66.00	-	109.00	2.00	156,000	166,000	18,600	5,600	7,500
21311EK	55.00	120.00	29.00	72.70	96.20	-	66.00	-	109.00	2.00	156,000	166,000	18,600	5,600	7,500
21311MBK	55.00	120.00	29.00	72.60	96.00	-	66.00	-	109.00	2.00	156,000	166,000	18,600	5,600	7,500
21311EK/C3	55.00	120.00	29.00	72.60	96.00	-	66.00	-	109.00	2.00	156,000	166,000	18,600	5,600	7,500
21311MBK/C3	55.00	120.00	29.00	72.60	96.00	-	66.00	-	109.00	2.00	156,000	166,000	18,600	5,600	7,500
21312MBK/C3	60.00	130.00	31.00	87.80	115.00	-	72.00	-	118.00	2.00	212,000	240,000	26,500	4,800	6,300
21312EK/C3	60.00	130.00	31.00	87.80	115.00	-	72.00	-	118.00	2.00	212,000	240,000	26,500	4,800	6,300
21312CAK/C3	60.00	130.00	31.00	87.80	115.00	-	72.00	-	118.00	2.00	212,000	240,000	26,500	4,800	6,300
21312CAK	60.00	130.00	31.00	87.80	115.00	-	72.00	-	118.00	2.00	212,000	240,000	26,500	4,800	6,300
21312EK	60.00	130.00	31.00	87.80	115.00	-	72.00	-	118.00	2.00	212,000	240,000	26,500	4,800	6,300
21312MBK	60.00	130.00	31.00	87.80	115.00	-	72.00	-	118.00	2.00	212,000	240,000	26,500	4,800	6,300
21313CAK/C3	65.00	140.00	33.00	94.70	124.00	-	77.00	-	128.00	2.00	236,000	270,000	29,000	4,300	6,000
21313MBK/C3	65.00	140.00	33.00	94.70	124.00	-	77.00	-	128.00	2.00	236,000	270,000	29,000	4,300	6,000
21313CAK	65.00	140.00	33.00	94.70	124.00	-	77.00	-	128.00	2.00	236,000	270,000	29,000	4,300	6,000
21313EK	65.00	140.00	33.00	94.70	124.00	-	77.00	-	128.00	2.00	236,000	270,000	29,000	4,300	6,000
21313EK/C3	65.00	140.00	33.00	94.70	124.00	-	77.00	-	128.00	2.00	236,000	270,000	29,000	4,300	6,000
21313MBK	65.00	140.00	33.00	94.70	124.00	-	77.00	-	128.00	2.00	236,000	270,000	29,000	4,300	6,000
21314EK	70.00	150.00	35.00	101.00	133.00	-	82.00	-	138.00	2.00	285,000	325,000	34,500	4,000	5,600
21314CAK	70.00	150.00	35.00	101.00	133.00	-	82.00	-	138.00	2.00	185,000	325,000	34,500	3,400	4,500
21314MBK	70.00	150.00	35.00	101.00	133.00	-	82.00	-	138.00	2.00	185,000	325,000	34,500	3,400	4,500
21314MBK/C3	70.00	150.00	35.00	101.00	133.00	-	82.00	-	138.00	2.00	185,000	325,000	34,500	3,400	4,500
21314EK/C3	70.00	150.00	35.00	101.00	133.00	-	82.00	-	138.00	2.00	185,000	325,000	34,500	3,400	4,500
21314CAK/C3	70.00	150.00	35.00	101.00	133.00	-	82.00	-	138.00	2.00	185,000	325,000	34,500	3,400	4,500
21315MBK	75.00	160.00	37.00	101.00	133.00	-	87.00	-	148.00	2.00	285,000	325,000	34,500	4,000	5,600
21315CAK/C3	75.00	160.00	37.00	101.00	133.00	-	87.00	-	148.00	2.00	285,000	325,000	34,500	4,000	5,600
21315EK/C3	75.00	160.00	37.00	101.00	133.00	-	87.00	-	148.00	2.00	285,000	325,000	34,500	4,000	5,600
21315MBK/C3	75.00	160.00	37.00	101.00	133.00	-	87.00	-	148.00	2.00	285,000	325,000	34,500	4,000	5,600
21315CAK	75.00	160.00	37.00	101.00	133.00	-	87.00	-	148.00	2.00	285,000	325,000	34,500	4,000	5,600
21315EK	75.00	160.00	37.00	101.00	133.00	-	87.00	-	148.00	2.00	285,000	325,000	34,500	4,000	5,600
21316EK	80.00	170.00	39.00	106.00	141.00	-	92.00	-	158.00	2.00	325,000	375,000	39,000	3,800	5,300
21316MBK/C3	80.00	170.00	39.00	106.00	140.00	-	92.00	-	158.00	2.00	325,000	357,000	39,000	3,800	5,300
21316EK/C3	80.00	170.00	39.00	106.00	140.00	-	92.00	-	158.00	2.00	325,000	357,000	39,000	3,800	5,300
21316CAK/C3	80.00	170.00	39.00	106.00	140.00	-	92.00	-	158.00	2.00	325,000	357,000	39,000	3,800	5,300
21316CAK	80.00	170.00	39.00	106.00	140.00	-	92.00	-	158.00	2.00	325,000	357,000	39,000	3,800	5,300
21316MBK	80.00	170.00	39.00	106.00	140.00	-	92.00	-	158.00	2.00	325,000	357,000	39,000	3,800	5,300
21317MBK	85.00	180.00	41.00	106.00	141.00	-	99.00	-	166.00	2.50	325,000	375,000	39,000	3,800	5,300
21317EK	85.00	180.00	41.00	106.00	141.00	-	99.00	-	166.00	2.50	325,000	375,000	39,000	3,800	5,300
21317CAK	85.00	180.00	41.00	106.00	141.00	-	99.00	-	166.00	2.50	325,000	375,000	39,000	3,800	5,300
21317CAK/C3	85.00	180.00	41.00	106.00	141.00	-	99.00	-	166.00	2.50	325,000	375,000	39,000	3,800	5,300
21317EK/C3	85.00	180.00	41.00	106.00	141.00	-	99.00	-	166.00	2.50	325,000	375,000	39,000	3,800	5,300
21317MBK/C3	85.00	180.00	41.00	106.00	141.00	-	99.00	-	166.00	2.50	325,000	375,000	39,000	3,800	5,300
21318CAK	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318MBK	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318EK	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318MBK/C3	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318EK/C3	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318CAK/C3	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21319MBK/C3	95.00	200.00	45.00	118.00	159.00	-	109.00	-	186.00	2.50	425,000	490,000	49,000	3,400	4,500
21319EK/C3	95.00	200.00	45.00	118.00	159.00	-	109.00	-	186.00	2.50	425,000	490,000	49,000	3,400	4,500
21319CAK/C3	95.00	200.00	45.00	118.00	159.00	-	109.00	-	186.00	2.50	425,000	490,000	49,000	3,400	4,500
21319MBK	95.00	200.00	45.00	118.00	159.00	-	109.00	-	186.00	2.50	425,000	490,000	49,000	3,400	4,500
21319EK	95.00	200.00	45.00	118.00	159.00	-	109.00	-	186.00	2.50	425,000	490,000	49,000	3,400	4,500
21319CAK	95.00	200.00	45.00	118.00	159.00	-	109.00	-	186.00	2.50	425,000	490,000	49,000	3,400	4,500
21320EK/C3	100.00	215.00	47.00	118.00	159.00	-	114.00	-	201.00	2.50	425,000	490,000	49,000	3,400	4,500
21320CAK/C3	100.00	215.00	47.00	118.00	159.00	-	114.00	-	201.00	2.50	425,000	490,000	49,000	3,400	4,500
21320MBK/C3	100.00	215.00	47.00	118.00	159.00	-	114.00	-	201.00	2.50	425,000	490,000	49,000	3,400	4,500
21320CAK	100.00	215.00	47.00	118.00	159.00	-	114.00	-	201.00	2.50	425,000	490,000	49,000	3,400	4,500
21320EK	100.00	215.00	47.00	118.00	159.00	-	114.00	-	201.00	2.50	425,000	490,000	49,000	3,400	4,500
21320MBK	100.00	215.00	47.00	118.00	159.00	-	114.00	-	201.00	2.50	425,000	490,000	49,000	3,400	4,500

Designation	Dimension										Performance data
	d	D	B	d₂	D₁	r_min	d_{a min.}	d_{a max.}	D_{A max.}	r_{a max.}	C_r	C_0r	C_ur	n_R	n_G
	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	N	N	N	min^-1	min^-1
21318E	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318CA	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318EK	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318MB	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318CAK	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318MBK	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318E/C3	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318CA/C3	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318EK/C3	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318MB/C3	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318CAK/C3	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800
21318MBK/C3	90.00	190.00	43.00	112.00	150.00	-	104.00	-	176.00	2.50	380,000	450,000	46,500	3,600	4,800

Type	Designation	Brand	Full designation
H318	Adapter sleeve	HFH	Adapter sleeve H318

Name	Brand	Webshop	Notice
21318EK	HFH		Premium quality, house brand

Properties	Suffix	Description
Cage design	E	Optimized for higher load capacity, sheet steel cage (unless otherwise stated)
Bore geometry	K	conical (Cone ratio 1:12)
Dimensional standards	-	Main dimensions according to ISO 15:2011 or DIN 616:2000

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