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Action Bearing Company
201 Brighton Avenue
Boston, MA 02134
Phone: (800) 225-4587 • Fax: (800) 252-1996
Email: info@actionbearing.com
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Our TW type linear motion bearings, often referred to as the ‘Super Series,” are used for applications that require single-direction motion, and are available in a wide variety of shaft shapes and materials. These lightweight, low-noise bearings feature a higher load capacity and travel life than the SW series, while the floating integral wiper seals allow for easy self-alignment. All bearings have an advanced polymer resin cage.

These bearings are available in both standard and open style. The open style incorporates bottom plates and mounting screws to keep bushings securely in place.

We also offer a complete range of slide units, which act as housings for the slide bushings; these come predrilled and ready for mounting as needed.

Available Dimensions:

Shaft Diameter (dr): 0.25 in. to 2 in.

Outer Diameter (D): 0.5 in. to 3 in.

Length (L): 0.75 in. to 4 in.

Distance Between Retaining Rings (B): 0.515 in. to 3.206 in.

Retaining Ring Width (W): 0.0390 in. to 0.1029 in.

Retaining Ring Diameter (D1): 0.4687 in. to 2.8379 in.

Dynamic Load (C): 60 lb to 2430 lb

Static Load (Co): 80 lb to 3040 lb

Configuration: Both open and standard types are available.  

Seal Type: Seals on both ends are available, as well as no seals.

TW Standard Type TOPBALL Slide Bush Dimensions
TW-Type-Linear-Motion
Unit of Measure
Items TW Standard Type TOPBALL Slide Bush Dimensions
TW4
TW Type Linear Motion Bearings
TW Standard Type TOPBALL Slide Bush Dimensions
TW4UU
TW Type Linear Motion Bearings
TW Standard Type TOPBALL Slide Bush Dimensions
TW6
TW Type Linear Motion Bearings
TW Standard Type TOPBALL Slide Bush Dimensions
TW6UU
TW Type Linear Motion Bearings
TW Standard Type TOPBALL Slide Bush Dimensions
TW8
TW Type Linear Motion Bearings
(dr) Shaft Diameter N/A 0.25 in N/A 0.25 in N/A 0.375 in N/A 0.375 in N/A 0.5000 in
(dr) Tolerance N/A 0 in N/A -0.0005 in N/A 0 in N/A -0.0005 in N/A 0 in
(D) Outer Diameter N/A 0.5000 in N/A 0.5000 in N/A 0.6250 in N/A 0.6250 in N/A 0.8750 in
(L) Length N/A 0.750 in N/A 0.750 in N/A 0.875 in N/A 0.875 in N/A 1.250 in
(L) Tolerance N/A 0 in N/A -0.015 in N/A 0 in N/A -0.015 in N/A 0 in
(B) Distance btwn Retaining Rings N/A 0.515 in N/A 0.515 in N/A 0.703 in N/A 0.703 in N/A 1.032 in
(B) Tolerance N/A 0 in N/A -0.015 in N/A 0 in N/A -0.015 in N/A 0 in
(W) Retaining Ring Width N/A 0.0390 in N/A 0.0390 in N/A 0.0390 in N/A 0.0390 in N/A 0.0459 in
(D1) Retaining Ring Diameter N/A 0.4687 in N/A 0.4687 in N/A 0.5880 in N/A 0.5880 in N/A 0.8209 in
Ball Diameter N/A 1/16 in N/A 1/16 in N/A 1/16 in N/A 1/16 in N/A 3/32 in
Number of Rows N/A 4
(C) Dynamic Load N/A 60 lb N/A 60 lb N/A 95 lb N/A 95 lb N/A 230 lb
(Co) Static Load N/A 80 lb N/A 80 lb N/A 120 lb N/A 120 lb N/A 290 lb
Weight N/A 0.008 lb N/A 0.009 lb N/A 0.013 lb N/A 0.014 lb N/A 0.042 lb
Available Housing Types N/A
NB TOPBALL Slide Units include a clear anodized corrosion resistant aluminum block and either one or two TOPBALL self-aligning slide bushings Closed and adjustable clearance styles incorporate machined snap ring grooves in combination with standard retaining rings for slide bush retention. The open style incorporates bottom plates and mounting screws to retain bushing in proper position. All styles are provided with standard machined reference edges for proper alignment and installation.
(F) Retention Hole Diameter N/A
(G) Retention Hole Location N/A
(J) Retention Hole Depth N/A
(h) Slot Width N/A
Configuration N/A Standard Type
Seal Type N/A No Seals N/A Seals on Both Ends N/A No Seals N/A Seals on Both Ends N/A No Seals