129

Self-Aligning Ball Bearings

Images shown are representations. Designs and specifications may differ from actual products.

Parts Number
129 Self-Aligning Ball Bearings			Add to Compare You can use this service by registering as a member.

Display units Metric Imperial

129

C_r	4550	N	Basic dynamic load rating
C_0r	895	N	Basic static load rating

Grease	26000	min^-1	Grease lubrication
Oil (Oil-bath)	30000	min^-1	Oil-bath lubrication

da (min.)	13	mm	Diameter of shaft abutment
Da (max.)	22	mm	Diameter of housing abutment
ra (max.)	0.6	mm	Radius of shaft or housing fillet

(approx.)

0.021

Designations	Boundary Dimensions			Basic Load Ratings		Radial Internal Clearance			Tolerance Class	Limiting Speeds		Mass
Designations	d (mm)	D (mm)	B (mm)	C_r (N)	C_0r (N)		min	max	Tolerance Class	Grease (min^-1)	Oil (Oil-bath) (min^-1)	(approx.) (kg)
129	9	26	8	4550	895				ISO NORMAL CLASS	26000	30000	0.021

You can use this service by registering as a member.

Not to scale.
(*) The chamfer dimensions are minimum values.
Suffix K represents bearings with tapered bores (taper 1:12).

CAD

Customer Questions

How do self-aligning ball bearings differ from spherical (self-aligning) roller bearings?

Self-aligning ball bearings suit light loads with high-speed rotation, while spherical roller bearings suit heavy loads with low-speed rotation.

What greases are recommended for self-aligning ball bearings?

The recommended grease for self-aligning ball bearings depends on usage conditions.

You can use the selection criteria for finding suitable grease for deep groove ball bearings with self-aligning ball bearings as well.

Can I use self-aligning ball bearings with thrust loads?

Because they have small contact angles, self-aligning ball bearings have extremely limited capacity for thrust loads.

Please consider using thrust bearings with aligning seats if thrust loads are expected.