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Timken 2MMC9102WI DUH super precision angular contact ball bearing configured as a duplex set with heavy preload (DUH). P4S-class precision meets ABEC 7/9 standards for high rigidity and minimal runout. Suitable for demanding machine tool spindles, precision grinders, and high-speed applications requiring accurate axial location and heavy preload.
MODEL 2MMC9102WI DUH
Returnable: Yes
0.3543 in C0 - Static Radial Rating (per row)
3200 N
0.7086 in World part number
C7002C-T-P4S-DUH
0.750 in Limiting Speed (Grease) (per row)
58320 rpm Limiting speed (oil):116640 rpm Manufacturing part number:2MMC9102WI DUH O.D. (in):32 mm 1.2598 Outer ring backing diameter:28.6 mm
1.130 in Rows per set
Duplex Total width:18 mm
1480 lbf Cage type
CR - Phenolic Outer Land Riding Cage Contact angle:15 Design units:Metric Inner ring backing diameter:18.9 mm
730 lbf C1 ISO - Dynamic Radial Rating (per row)
6610 N
Ball type
Ceramic Bearing width:9 mm
Ball Type
Ceramic
Bearing Width
9 mm 0.3543 in
Bore
15 mm
C0 - Static Radial Rating (per row)
3200 N 730 lbf
C1 ISO - Dynamic Radial Rating (per row)
6610 N 1480 lbf
Cage Type
CR - Phenolic Outer Land Riding Cage
Ce - Dynamic Radial Rating (per row)
7300 N 1630 lbf
Contact Angle
15 º
d - Bore
15 mm
D - Outer Diameter
32 mm 1.2598 in
da - Inner Ring Backing Diameter
18.9 mm 0.750 in
Da - Outer Ring Backing Diameter
28.6 mm 1.130 in
Design Units
Metric
DOuter Ring Backing Diameter
28.6 mm 1.130 in
Dynamic Radial Rating (per row)
7300 N 1630 lbf
I.D.
15 mm
Inner Ring 'To Clear' Radius
0.30 mm 0.012 in
Inner Ring Backing Diameter
18.9 mm 0.750 in
Limiting Speed (Grease) (per row)
58320 rpm
Limiting Speed (Oil)
116640 rpm
Manufacturing Part Number
2MMC9102WI DUH
Outer Diameter
32 mm 1.2598 in
Outer Ring 'To Clear' Radius
0.3 mm 0.012 in
R - Inner Ring "To Clear" Radius
0.30 mm 0.012 in
r - Outer Ring "To Clear" Radius
0.3 mm 0.012 in
Rows per Set
Duplex
Static Radial Rating (per row)
3200 N 730 lbf
Total Width
18 mm 0.7086 in
World Part Number
C7002C-T-P4S-DUH
EXTRA-LIGHT ISO 10 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