Chrome steel Engine Mechanical Self-Aligning Ball Bearing 1221 EK TN9 / 1221K

Technical Data

Inside Ø (mm):	105
Outside Ø (mm):	190
Width (mm):	36
Tolerance for inside-Ø (mm):	0/-0,02
Tolerance for outside-Ø (mm):	0/-0,03
Tolerance for width (mm):	0/-0,2
Ring Material:	Rolling bearing steel
Rows Of Balls:	double row
Bore:	cylindrical
Extended Inner Ring:	no
Seal:	open
Cage Material:	Sheet Steel
Rolling Element Material:	Rolling bearing steel
Magnetic:	ja
Product weight:	4,3700 kg

Product Description

Self-Aligning Ball Bearing 1221 EK TN9 / 1221K 105x190x36 mm

Description:

Self-aligning ball bearings are constructed with the inner ring and ball assembly contained within an outer ring with a spherical raceway. This construction allows the bearing to tolerate a minor angular misalignment resulting from deflection or improper mounting. Self-aligning ball bearing is consequently self-aligning and insensitive to angular misalignments of the shaft relative to the housing.

This kind of ball bearings isisparticularly suitable for applications where considerable shaft deflections or misalignment are xpected. Additionally, the self-aligning ball bearing has the lowest friction of all rolling bearings, enabling it to run cooler even at high speeds.

Competitive Advantage

1. Quality level: reach the same level as the Japanese and European bearings

2. Tolerance level: ABEC-1 (P0), ABEC-3 (P6)

3. Less coefficient of friction

4. High limiting speed

5. Large size range

6. variations of structure

Features:

High-Quality Steel – Ultra clean steel to extend bearing life by up to 80%.

Advanced Grease Technology – lubricants that can extend grease life and performance.

High-Grade Balls – Quiet and smooth operation even at high speed.

Super Finished Raceways – Specially honed to minimize noise and improve lubricant distribution and life.

Contact Angle – Offered in 15, 25, 30, and 40-degree angles.

Cages – Available in a range of Polyamide, steel, and brass cage assemblies

RELATED PRODUCTS:

Boundary dimensions(mm)				Basic load ratings(kN)		Limiting speeds(rpm)		Mass(Kg)	Bearing Number
d	D	B	rs min	Cr	Cor	Grease	Oil	(Approx.)	TFL
60	110	22	1.5	30.0	11.5	4,900	5,800	0.879	1212
60	110	22	1.5	30.0	11.5	4,900	5,800	0.864	1212K
65	120	23	1.5	31.0	12.5	4,500	5,300	1.13	1213
65	120	23	1.5	31.0	12.5	4,500	5,300	1.11	1213K
70	125	24	1.5	34.5	13.8	4,200	4,900	1.24	1214
75	130	25	1.5	39.0	15.7	3,900	4,600	1.33	1215
75	130	25	1.5	39.0	15.7	3,900	4,600	1.31	1215K
80	140	26	2	40.0	17.0	3,700	4,300	1.65	1216
80	140	26	2	40.0	17.0	3,700	4,300	1.62	1216K
85	150	28	2	49.0	20.8	3,500	4,100	2.06	1217
85	150	28	2	49.0	20.8	3,500	4,100	2.03	1217K
90	160	30	2	57.0	23.5	3,300	3,800	2.51	1218
90	160	30	2	57.0	23.5	3,300	3,800	2.47	1218K
95	170	32	2.1	64.0	27.1	3,100	3,600	3.1	1219
95	170	32	2.1	64.0	27.1	3,100	3,600	3.05	1219K
100	180	34	2.1	69.0	29.7	2,900	3,400	3.64	1220K
105	190	36	2.1	74.5	32.5	2,800	3,300	4.34	1221
110	200	38	2.1	80.5	35.5	2,600	3,100	5.15	1222