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Timken 3MMC215WI QUH super precision angular contact ball bearing, quadruplex set with heavy preload (QUH). P4S-grade ABEC 7/9 precision for machine tool spindles and high-rigidity applications. Designed for maximum stiffness and accuracy in precision grinding, milling, and boring spindles.
MODEL 3MMC215WI QUH
Returnable: Yes
0.9843 in C0 - Static Radial Rating (per row)
55600 N
12500 lbf C1 ISO - Dynamic Radial Rating (per row)
76100 N
17100 lbf Cage type
CR - Phenolic Outer Land Riding Cage Contact angle:25 Design units:Metric Inner ring backing diameter:85.2 mm
3.360 in Limiting Speed (Grease) (per row)
11600 RPM Limiting speed (oil):23200 RPM Manufacturing part number:3MMC215WI QUH O.D. (in):130 mm 5.1181 Outer ring backing diameter:120.8 mm
3.9372 in World part number
C7215E-T-P4S-QUH
4.760 in Precision rating
ISO P4S (ABEC 7/9) Rows per set:Quadruplex Total width:100 mm
Ball type
Ceramic Bearing width:25 mm
Ball Type
Ceramic
Bearing Width
25 mm 0.9843 in
Bore
75 mm
C1 ISO - Dynamic Radial Rating (per row)
76100 N 17100 lbf
Cage Type
CPhenolic Outer Land Riding Cage
Contact Angle
25 º
Design Units
Metric
DOuter Ring Backing Diameter
120.8 mm 4.760 in
Dynamic Radial Rating (per row)
83700 N 18800 lbf
I.D.
75 mm
Inner Ring 'To Clear' Radius
1.5 mm 0.059 in
Inner Ring Backing Diameter
85.2 mm 3.360 in
Limiting Speed (Grease) (per row)
11600 rpm
Limiting Speed (Oil)
23200 rpm
Manufacturing Part Number
3MMC215WI QUH
Outer Diameter
130 mm 5.1181 in
Outer Ring 'To Clear' Radius
1.5 mm 0.059 in
Precision Rating
ISO P4S (ABEC 7/9)
Rows per Set
Quadruplex
Static Radial Rating (per row)
55600 N 12500 lbf
Total Width
100 mm 3.9372 in
World Part Number
C7215E-T-P4S-QUH
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.
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.
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SKU: 5066946
Best company to buy from
I always buy from MRO is a very reliable company to work with
Read more