Brass Cage TAC120-3MSUELPN5D Angular Contact Super Precision Bearings For Ball Screw Support

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TAC120-3MSUELPN5D

Bore Diameter:120 mm

Outside Diameter:300 mm

Width:62 mm

Weight:24.4 kg

Min. Order:1 Piece

The TAC120-3MSUELPN5D Ball screw support bearings are widely used in the feed drive systems of CNC machine tools, specifically including: machining centers (X/Y/Z axis screw support), CNC lathes (Z-axis), EDM machines, precision grinding machines, industrial robots (linear modules), and semiconductor equipment (wafer positioning platforms).

The TAC120-3MSUELPN5D bearing is a Angular Contact Super Precision Thrust Ball Bearings, TAC 03 Series for Ball Screw Support (High-Load Drive) with an inner diameter of 120 mm , an outer diameter of 300 mm, a width of 62 mm. It typically uses PN5D = Standard accuracy (ISO Class 5) grade precision tolerances and GCr15SiMn rings, GCr15SiMn rolling mlement. Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

120 mm

Outside Diameter:

300 mm

Thickness:

62 mm

Weight:

24.4 KG

Reference speed (Grease rpm):

1276

Limiting speed (Oil rpm):

1650

Specifications:

Structure:

Ball Screw Support Bearings

Number of Rows:

One

Precision Rating:

PN5D = Standard accuracy (ISO Class 5)

Bearing Material:

GCr15SiMn

Cage Type:

M = Brass Cage

Seals Type:

Open

Rolling Mlement Material:

GCr15SiMn

Bore Type:

Cylindrical

System of Measurement:

Metric

Series:

TAC 03 Series (TAC..-3MSUELPN5D)

Rolling Element:

balls

Transaction Information:

Transport Package:

Standard Export Package

Service:

7*24 hour

Shipping Ways:

by Sea or Air

Country of Origin:

china

Stock:

200 Piece

Port:

Tianjin, Shanghai, Shenzhen, Guangzhou or Qingdao

Payment term:

by T/T in advance

Delivery time:

2-3 days for stock, 25-30 days for bulk production

Detailed description

TAC120-3MSUELPN5D bearings ( 120 mm x 300 mm x 62 mm) have the advantages of High axial stiffness and load-bearing capacity, 60° contact angle design, pre-installed and pre-loaded for easy installation, optional sealing for maintenance-free operation, and are therefore widely used in the Machine tool ball screws, machining centers, automated equipment, robots, precision measuring devices.

Part Number	TAC120-3MSUELPN5D
Bearing Type	Angular Contact Super Precision Thrust Ball Bearings, TAC 03 Series for Ball Screw Support (High-Load Drive)
Internal design	D = Contact angle 55 °
Contact angle - α	55 °
Type	TAC
Dimension series	03 = 03 Series
Preload	EL = Extra light preload
Arrangement row	One
Arrangement	SU = Universal (One-row)
SU Bearing Mass - m [lb]	53.7922
DB/DF Arrangement H preload [lbf]	375
DB/DF Arrangement H Axial Rigidity	1099 N/µm
DB/DF Arrangement H Starting Torque	0.24 N･m
DB/DF Arrangement H Measured Axial Clearance	-9 µm
Speed ratings (grease) - n_B	1276 min^–1
Speed ratings (oil) - n_G	1650 min^–1
Recommended Grease Quantities - CC	336 g/brg
Dimension
d φ Inside [inch]	4.7244
D Φ Outside [inch]	11.8110
B Width [inch]	2.4409
r min Chamfer [inch]	0.1575
r₁ min Chamfer [inch]	0.0591
d₁ Shoulder [inch]	6.8622
d₂ Shoulder [inch]	8.5197
D₁ Shoulder/Recess [inch]	8.8031
D₂ Shoulder/Recess [inch]	10.5630
Dynamic Axial Capacity
C_a 1 row [lbf]	135968
C_a 2 row [lbf]	221333
C_a 3 row [lbf]	294451
C_a 4 row [lbf]	359606
C_a 5 row [lbf]	420277
Static Axial Capacity
C_0a 1 row [lbf]	178383
C_0a 2 row [lbf]	357365
C_0a 3 row [lbf]	534969
C_0a 4 row [lbf]	719247
C_0a 5 row [lbf]	887918
Other Arrangement	1 rows: DB(<>): TAC120-3MDBELPN5D DF(><): TAC120-3MDFELPN5D 2 rows: DT(<<): TAC120-3MDTELPN5D DFD(><<): TAC120-3MDFDELPN5D DFF(>><<): TAC120-3MDFFELPN5D DBD(<<>): TAC120-3MDBDELPN5D DBB(<<>>): TAC120-3MDBBELPN5D 3 rows: DFT(><<<): TAC120-3MDFTELPN5D DFFD(>><<): TAC120-3MDFFDELPN5D DFFF(>>><<<): TAC120-3MDFFFELPN5D DBT(<<<>): TAC120-3MDBTELPN5D DBBD(<<<>>): TAC120-3MDBBDELPN5D DBBB(<<<>>>): TAC120-3MDBBBELPN5D 4 rows: DFTD(><<<<): TAC120-3MDFTDELPN5D DFFT(>><<<<): TAC120-3MDFFTELPN5D DBTD(<<<<>): TAC120-3MDBTDELPN5D DBBT(<<<<>>): TAC120-3MDBBTELPN5D 5 rows: DFTT(><<<<<): TAC120-3MDFTTELPN5D DBTT(<<<<<>)TAC120-3MDBTTELPN5D

The TAC120-3MSUELPN5D Ball screw support bearings are typically composed of high-precision angular contact ball bearings paired back-to-back (DB) or in series (DT) configurations. They feature a small contact angle (15° or 20°) and high-rigidity cages (phenolic resin or brass) on both inner and outer rings, achieving a precision grade of P4 or higher. Some models integrate seals and lubrication holes, forming a preload unit.

Ball screw support bearings offer extremely high axial rigidity and load-bearing capacity, accurately withstanding bidirectional axial loads in screw drives. The back-to-back configuration provides anti-overturning moment capability, ensuring positioning accuracy. The preload design eliminates axial backlash, achieving backlash-free, low-friction operation with low heat generation, making them suitable for high-speed feed. They are factory-installed and ready to use, simplifying installation and adjustment.

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High quality TAC120-3MSUELPN5D ( 24.4 kg Mass, ID: 120 mm OD: 300 mm WD: 62 mm , TAC 03 Series (TAC..-3MSUELPN5D) Series , One Rows , PN5D = Standard accuracy (ISO Class 5) Accuracy Class , GCr15SiMn Material ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. TAC120-3MSUELPN5D. then click the button " Send " The web site will make your purchasing information sent to the supplier's mailbox, who will come to contact you upon they get your information at the first time.

Brass Cage TAC120-3MSUELPN5D Angular Contact Super Precision Bearings For Ball Screw Support

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