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Timken 2MM224WI TUM is a super precision angular contact ball bearing configured as a triplex set with medium preload (TUM). This ABEC 7 (P4S) precision class bearing is designed for high-rigidity applications such as machine tool spindles, jig borers, and precision grinding equipment.
MODEL 2MM224WI TUM
Returnable: Yes
1.5748 in C0 - Static Radial Rating (per row)
180100 N
4.7244 in World part number
7224C-T-P4S-TUM
40500 lbf C1 ISO - Dynamic Radial Rating (per row)
191000 N
42900 lbf Cage type
CR - Phenolic Outer Land Riding Cage Contact angle:15 Design units:Metric Inner ring backing diameter:137.3 mm
5.41 in Limiting Speed (Grease) (per row)
6700 rpm Limiting speed (oil):13400 RPM Manufacturing part number:2MM224WI TUM O.D. (in):215 mm 8.4646 Outer ring backing diameter:198.5 mm
7.820 in Precision rating
ISO P4S (ABEC 7/9) Rows per set:Triplex Total width:120 mm
Ball type
Steel Bearing width:40 mm
Ball Type
STEEL
Bearing Width
40 mm 1.5748 in
Bore
120 mm
C0 - Static Radial Rating (per row)
180100 N 40500 lbf
C1 ISO - Dynamic Radial Rating (per row)
191000 N 42900 lbf
Cage Type
CR - Phenolic Outer Land Riding Cage
Ce - Dynamic Radial Rating (per row)
210100 N 47200 lbf
Contact Angle
15 º
d - Bore
120 mm
D - Outer Diameter
215 mm 8.4646 in
da - Inner Ring Backing Diameter
137.3 mm 5.41 in
Da - Outer Ring Backing Diameter
198.5 mm 7.820 in
Design Units
Metric
DOuter Ring Backing Diameter
198.5 mm 7.820 in
Dynamic Radial Rating (per row)
210100 N 47200 lbf
I.D.
120 mm
Inner Ring 'To Clear' Radius
2.1 mm 0.079 in
Inner Ring Backing Diameter
137.3 mm 5.41 in
Limiting Speed (Grease) (per row)
6700 rpm
Limiting Speed (Oil)
13400 rpm
Manufacturing Part Number
2MM224WI TUM
Outer Diameter
215 mm 8.4646 in
Outer Ring 'To Clear' Radius
2.1 mm 0.079 in
Precision Rating
ISO P4S (ABEC 7/9)
R - Inner Ring "To Clear" Radius
2.1 mm 0.079 in
r - Outer Ring "To Clear" Radius
2.1 mm 0.079 in
Rows per Set
Triplex
Static Radial Rating (per row)
180100 N 40500 lbf
Total Width
120 mm 4.7244 in
World Part Number
7224C-T-P4S-TUM
LIGHT ISO 02 SERIES
HIGH PRECISION MV
Running accuracy, performance and dimensional controls conform to ABEC 7 (ISO P4) requirements.
SUPER PRECISION MM
Running accuracy and performance meet ABEC 9 (ISO P2) levels. Other features conform to ABEC 7 (ISO P4) requirements.
WI CONSTRUCTION
- Incorporates low shoulder on non-thrust side of both inner and outer rings.
- Balls separated by one-piece cage piloted against a ground thrust shoulder land of the outer ring.
- Optional one-piece cage piloted on the ball available with MV (P4) product.
SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read moreHow do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
What is the difference between deep groove and angular contact ball bearings?
Deep groove ball bearings are the most common type. They’re designed to handle mainly radial loads, but they can also take some axial load in both directions. They’re simple, versatile, and used in everything from motors to conveyors. Angular contact ball bearings are built for combined loads, especially where there’s significant axial force in one direction. They’re often used in pairs and are common in higher precision or higher load applications like pumps and gearboxes. If your load is mostly radial, go deep groove. If axial load matters more, angular contact is usually the better choice.
SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read more