MOTION GUIDANCE SYSTEMS
- TWHW WIDE Linear Guides

TWHW wide linear guides

The TWHW wide guide rails contain 4 rows of balls. The carriages offer a wider rail and the lowest overall height.


Carriage Types:

The wide linear guides are available for rail sizes 17 to 35 in the following two designs:

1) A wide block carriage (-R) for bolting from above.
2) A wide flanged version (-F) for bolting from above or below.


The wide guide rail (TWHW) is available for bolting from above only. The carriages are only available with the SS sealing arrangement (end seals and inner seal) with the option of metal scrapers and lubrication blocks.


Features:

- Low overall height.
- The wider rail is better suited to single rail applications.
- Sealed all around providing additional protection from contamination.
- Same load capacity in all directions.
- One design of rail for both the TWHW..R and TWHW..F carriages.

Catalogue

TWHW WIDE LINEAR RAILS

The TWHW rail is the wide  type. It features countersunk holes for bolting from above. This rail can be used for all designs of TWHW carriages.

Drawing of TWO rail

Part Number Pitch P Weight (kg/m)
TWHW17 40 1.90
TWHW21 50 2.90
TWHW27 60 4.50
TWHW35 80 9.60


The maximum length of rail is 2000mm for sizes 17 and 21, and 4000mm for sizes 27 and 35. The rails will be cut symmetrically (G=G) unless requested otherwise.

TWHW Linear Carriages - BLOCK

Block Carriages TWHW..R

The TWHW..R compact linear carriages are designed for bolting from above. Use with TWHW linear rails. These wide carriages offer the lowest overall height. Standard carriages (TWH) and compact carriages (TWS) are also available for the standard rails.

Drawing of TWHW wide block linear bearing carriages


Part Number H W L B C Mxl L1 T N E Grease H3
TWHW17R 17 50 51.0 29 15 M4x5 37.4 5.2 4.0 3.5 A-ø3 2.5
TWHW21R 21 54 59.0 31 19 M5x6 45.4 8.0 5.0 3.5 A-ø3 3.3
TWHW27R 27 62 72.5 46 32 M6x6 54.7 10.0 6.0 10.3 B-M6F 3.5
TWHW35R 35 100 105.3 76 50 M8x8 82.1 14.0 7.6 10.3 B-M6F 4.0

Loads and Moments for Block Carriages TWHW..R


TWHW-R linear dimensions and moments

Part Number W1 W2 W3 H1 d1xd2 xh C
(kN)
C0 (kN) Mp
=
My
Mp2
=
My2
Mr Block (kg)
TWHW17R 33 8.5 18 8.6 4.5x7.5x5.3 7.3 12.2 81 381 205 0.13
TWHW21R 37 8.5 22 11.0 4.5x7.5x5.3 8.4 14.8 119 547 278 0.19
TWHW27R 42 10.0 24 15.0 4.5x7.5x5.3 15.3 24.8 239 1114 527 0.36
TWHW35R 69 15.5 40 19.0 7x11x9 33.9 53.2 773 3528 1851 1.20

Moments are in Nm and dimensions are in mm. Mp2 and My2 are the moment capacities when two carriages are used in close contact.

TWHW Linear Carriages - FLANGED

Flanged Carriages TWHW..F

The TWHW..F compact flanged linear carriages are designed for bolting from above or below. Use with TWHW linear rails. These wide carriages offer the lowest overall height. Standard carriages (TWH) and compact carriages (TWS) are also available for the standard rails.

Drawing of TWHW wide flanged linear bearing carriages


Part Number H W L B C M L1 T N E Grease H3
TWHW17F 17 60 51.0 53 26 M4 37.4 6 4 3.5 A-ø3 2.5
TWHW21F 21 68 59.0 60 29 M5 45.4 8 5 3.5 A-ø3 3.3
TWHW27F 27 80 72.5 70 40 M6 54.7 10 6 10.3 B-M6F 3.5
TWHW35F 35 120 105.3 107 60 M8 82.1 14 7.6 10.3 B-M6F 4.0

Loads and Moments for Flanged Carriages TWHW..F


TWHW flanged linear dimensions and moments

Part Number W1 W2 W3 H1 d1xd2 xh C
(kN)
C0 (kN) Mp
=
My
Mp2
=
My2
Mr Block (kg)
TWHW17F 33 13.5 18 8.6 4.5x7.5x5.3 7.3 12.2 81 381 205 0.15
TWHW21F 37 15.5 22 11.0 4.5x7.5x5.3 8.4 14.8 119 547 278 0.24
TWHW27F 42 19.0 24 15.0 4.5x7.5x5.3 15.3 24.8 239 1114 527 0.47
TWHW35F 69 25.5 40 19.0 7x11x9 33.9 53.2 773 3528 1851 1.40

Moments are in Nm and dimensions are in mm. Mp2 and My2 are the moment capacities when two carriages are used in close contact.

Related Products and Links

Linear bearings
Shafts for linear bearings
Vee bearings and rails
Miniature linear guides
Vulkollan combined roller bearings
Hertzian pressure calculations
Exterior linear sliding system
Standard combined roller bearings