FAG 1221-M Self-aligning ball bearing 105 × 190 × 36 mm

Self-Aligning Ball Bearing

RFQ

Estimated delivery: 26 Jul 2026 (overseas stock, ~4 weeks)

In stockEstimated delivery: 26 Jul 2026 (overseas stock, ~4 weeks)

EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.

Category: Self-Aligning Ball Bearing
Bore: Z
Outer Ø: 190 mm mm
Width: 36 mm mm

Overview

FAG 1221-M Self-Aligning Ball Bearing uses two rows of balls and a spherical outer ring raceway to compensate for shaft misalignment. It provides low-friction rotation in fans, conveyors, textile machines, and long-shaft arrangements with mounting or housing deviations.

Two rows of balls are guided by a cage on the inner ring, while the outer ring has a spherical raceway. The design absorbs angular misalignment between shaft and housing while maintaining low friction at moderate to high speeds.

Key features

Self-aligning function for angular misalignment
Low friction for stable medium- to high-speed operation
Suitable for long shafts and deflection-prone positions
Available in open and sealed variants

Typical applications

Fans and blowers
Conveyor shafts
Textile machinery
Agricultural and general machinery

Selection guidance

Check expected misalignment, load, sealing needs, internal clearance, and available mounting space.

Symbol	Value	Description
≈m	4,59 kg	Weight
Cr	75.000 N	Basic dynamic load rating, radial
C_0r	32.500 N	Basic static load rating, radial
C_ur	1.690 N	Fatigue load limit, radial
n_G	5.700 1/min	Limiting speed
n_ϑr	4.350 1/min	Reference speed

Symbol	Value	Description
d	105 mm	Bore diameter
D	190 mm	Outside diameter
B	36 mm	Width
r_{1, 2 min}	2,1 mm	Minimum chamfer dimension
D₁	164,3 mm	Shoulder diameter, outer ring
d₁	133,9 mm	Shoulder diameter, inner ring

Symbol	Value	Description
d_{a min}	117 mm	Min. shoulder diameter for mounting, inner ring
D_{a max}	178 mm	Max. shoulder diameter for mounting, housing
r_{a max}	2,1 mm	Max. fillet radius

Symbol	Value	Description
T_min	-30 °C	Operating temperature min.
T_max	150 °C	Operating temperature max.

Symbol	Value	Description
e	0,18	Limit value Fa/Fr
Y	5,45	Dynamic axial load factor

Code	Description
Z	Bore type
Without	Sealing type
M	Cage
PN	Tolerance class
CN (Group N)	Radial clearance group
Without	Lubricant

datasheet pdf download

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