CATALOG No.322-1EOptions for the Ball Screw QZ Lubricator Wiper Ring “W”... QZ Lubricator for the Ball Screw Wiper Ring “W” Wiper Ring “W” QZ Lubricator OPTIONS For Ball Screws, dust-pre
Trang 1CATALOG No.322-1E
Options for the Ball Screw
QZ Lubricator
Wiper Ring “W”
Trang 2QZ Lubricator for the Ball Screw
Wiper Ring “W”
Wiper Ring “W”
QZ Lubricator
OPTIONS
For Ball Screws, dust-prevention and lubrication accessories are available You can make a selection according to the application or mounting location.
Trang 3QZ Lubricator
The QZ Lubricator feeds a right amount of lubricant to the ball raceway of the ball screw shaft This allows
an oil film to be formed between the balls and the ball raceway, thus improving lubricity and significantly extending the lubrication maintenance interval
Its structure consists of three major components: (1) a highly oil-impregnated fiber net (functions to store a lubricant), (2) a high-density fiber net (to apply the lubricant to the raceway) and (3) an oil control plate (to control the flow of the lubricant) The lubricant contained in QZ Lubricator is fed to the ball screw shaft, based on the principle of capillary action, which is used in felt-tip pens and other products.
● Features
● Since it supplements an oil loss, the lubrication maintenance interval can significantly be extended
● Since the right amount of lubricant is applied to the ball raceway, an environmentally friendly lubrication system that does not contaminate the surroundings is achieved
Flow of lubricant
(3) Oil control plate
(2) High-density fiber net
(1) Highly oil-impregnated fiber net
Applied directly
to the raceway
Ball screw shaft
Sealed case
Ball screw nut
QZ Lubricator
QZ Lubricator
QZ fixing screw
Ball screw shaft
Ball Ball screw nut
Air vent (see note)
Appearance Drawing Structural Drawing
QZ Lubricator has an air vent Do not block the vent with grease or the like.
Note
Trang 4Since the QZ Lubricator continuously feeds lubricant over a long period, the
maintenance interval can significantly be extended.
No problem after traveling 8,000 km
Distance traveled ［linear travel distance］ (km)
0 1000 2000 3000 4000 5000 6000 7000 8000
QZ Lubricator only
BIF2510
2500 min-1
25 m/min
500 mm Internal preload only
Ball Screw Maximum rotation speed Maximum speed Stroke Load
Since QZ Lubricator feeds the right amount of lubricant directly to the raceway, the
lubricant can effectively be used without waste.
Model No.: BNFN3612-5G0 + 1500LC5 Travel distance: 25 km/day
Travel distance: 2,500 km
QZ Lubricator
15000
32
Forced lubrication
Amount of oil (cm3)
QZ Lubricator + THK AFA Grease
32 cm 3
(QZ Lubricator attached to both ends of
the ball screw nut)
Forced lubrication 0.25 cm 3 /3 min ×24 hours×125 days
= 15,000 cm 3
Comparison
470
Trang 5Wiper Ring “W” for the Ball Screw
W
With Wiper Ring “W,” a special resin with high wear resistance elastically contacts the circumference of the ball screw shaft and the screw thread, and eight slits remove foreign matter, thus preventing foreign matter from entering the ball screw nut.
● Features
● A total of eight slits on the circumference remove foreign matter in succession, and prevent entrance of foreign matter
● Contacts the ball screw shaft to reduce the flowing out of grease
● Contacts the ball screw shaft at a constant pressure level using a spring, thus to minimize heat generation
● Since the material is highly resistant to wear and chemicals, its performance will not easily be deteriorated even if it is used over a long period
Seal snap ring
Seal snap ring
Ball screw shaft
Ball screw nut
Wiper ring
Multi-slit
matter
Ball screw shaft Rotational direction Detail view of “A”
Appearance Drawing Structural Drawing
Trang 6■ Test in an environment exposed to foreign matter
[Test conditions]
0 200 400 600 800100012001400160018002000
Wiper Ring
Labyrinth seal
Distance traveled (km) Flaking occurs on the ball screw shaft
No problem Flaking occurs on the ball
[Test result]
Description BIF3210-5G0 + 1500LC5
1000 min-1
10 m/min 1.8 m/s
60 ms 1s
900 mm 1.31 kN
FCD400 average particle diameter: 250 μm
5 g/h
1) Type with Wiper Ring Slight flaking occurred in the ball screw shaft at travel distance of 1,000 km 2) Type with a labyrinth seal
Flaking occurred throughout the circumference of the screw shaft raceway
at travel distance of 200 km
Flaking occurred on the balls after traveling 1,500 km
0 0 2 4 6 8 10 12
500 1000 1500 2000 Distance traveled (km)
(μ
) Type with Labyrinth seal
Type with Wiper Ring
(1) Type with Wiper Ring Wear of balls at a travel distance of 2,000 km: 1.4μm
(2) Type with a labyrinth seal Starts to be worn rapidly after 500 km, and the ball wear amount at the travel distance of 2,000 km: 11μm
After traveling 2,000 km
● Discolored, but no breakage ● Flaking occurs
(1) Type with Wiper Ring (2) Type with a labyrinth seal
Unused ball Ball after traveling Unused ball Ball after traveling
0 10 20 30 40 50 60
Travel time (min)
Unit : ℃
(℃
Heat generation temperature Temperature rise
With wiper ring 37.1 12.2
Without seal 34.5 8.9
With Wiper Ring Without seal
Performance
Item
Model No
Maximum rotation speed
Maximum speed
Maximum
circumferential speed
Time constant
Dowel
Stroke
Load
(through internal preload)
Grease
Foundry dust
Volume of foreign
matter per shaft
THK AFG Grease 8 cm3 (Initial lubrication to the ball screw nut only)
[Test conditions]
Description BLK3232-3.6G0 + 1426LC5
1000 min-1
32 m/min 1.7 m/s
100 ms
1000 mm 0.98 kN THK AFG Grease 5 cm3 (contained in the ball screw nut)
Item
Model No
Maximum rotation speed
Maximum speed
Maximum
circumferential speed
Time constant
Stroke
Load
(through internal load)
Grease
[Test result]
Trang 7Model No.
WW QZ
Dimension with WW attached
Length of protrusion with
QZ attached
Diameter of protrusion with
QZ attached
AL
Dimension with QZWW attached
1604-5
1605-5
2004-5
2005-5
2504-5
2505-5
2506-5
2805-5
2806-5
3205-5
3206-5
3210-7
SBN 3212-5
3610-7
3612-7
3616-5
4012-5
4016-5
4512-5
4516-5
5012-5
5016-5
5020-5
3620-7.6
3636-5.6
4020-7.6
4030-7.6
4040-5.6
5020-7.6
5030-7.6
SBK
5036-7.6
5050-5.6
5520-7.6
5530-7.6
5536-7.6
3210-5
3610-5
3612-5
4010-7.5
4012-7.5
5010-7.5
HBN 5012-7.5
5016-7.5
6316-7.5
6316-10.5
6320-7.5
1604-3
1605-2.5
1605-3
1605-5
BNF 1606-2.5
1606-5
1610-1.5
1810-2.5
1810-3
Model No
Caged
Ball Screw
Nut Dimensions of Ball Screw Models Attached with Wiper Ring (without QZ, Symbol: WW) and Models Attached with QZ Lubricator (Symbol: QZWW)
WW/QZWW
L Note)
QWL
QWD AL
QWL
WW QZ
Dimension with WW attached
Length of protrusion with
QZ attached
Diameter of protrusion with
QZ attached
AL
Dimension with QZWW attached
2004-2.5 2004-5 2005-2.5 2005-3 2005-3.5 2005-5 2006-2.5 2006-3 2006-3.5 2006-5 2008-2.5 2010A-1.5 2012-1.5 2504-2.5 2504-5 2505-2.5 2505-3 2505-3.5 2505-5 2506-2.5 2506-3 2506-3.5 2506-5 2508-2.5 2508-3 2508-3.5 2508-5 2510A-2.5 BNF 2512-2.5 2516-1.5 2805-2.5 2805-3 2805-3.5 2805-5 2805-7.5 2806-2.5 2806-3.5 2806-5 2806-7.5 2808-2.5 2808-3 2808-5 2810-2.5 3204-7.5 3205-2.5 3205-3 3205-4.5 3205-5 3205-7.5 3206-2.5 3206-3 3206-5 3208A-2.5 3208A-3 3208A-4.5 3208A-5 3210A-2.5
Caged
Ball Screw
Caged
Ball Screw
○: supported △: supported with order ×: not supported
−: not applicable
Note: “L” indicates the nut dimension of models attached with WW.
Trang 8Model No.
WW QZ
Dimension with WW attached
Length of protrusion with
QZ attached
Diameter of protrusion with
QZ attached
AL
Dimension with QZWW attached Model No
WW QZ
Dimension with WW attached
Length of protrusion with
QZ attached
Diameter of protrusion with
QZ attached
AL
Dimension with QZWW attached
3210A-3
3210A-3.5
3210A-5
3212-3.5
3606-2.5
3606-3
3606-5
3606-7.5
3608-2.5
3608-5
3608-7.5
3610-2.5
3610-5
3610-7.5
3612-2.5
3612-5
3616-2.5
3620-1.5
4005-3
4005-4.5
4005-6
4006-2.5
4006-5
4006-7.5
4008-2.5
4008-3
4008-5
4010-2.5
4010-3
4010-3.5
4010-5
4012-2.5
4012-3.5
4012-5
4016-5
4506A-2.5
4506A-5
BNF 4506A-7.5 4508-2.5
4508-5
4508-7.5
4510-2.5
4510-3
4510-5
4510-7.5
4512-5
4520-1.5
5005-4.5
5008-2.5
5008-5
5008-7.5
5010-2.5
5010-3
5010-3.5
5010-5
5010-7.5
5012-2.5
5012-3.5
5012-5
5016-2.5
5016-5
5020-2.5
5510-2.5
5510-5
5510-7.5
5512-2.5
5512-3
5512-3.5
5512-5
5512-7.5
5516-2.5
5516-5
5520-2.5
5520-5
6310-2.5
6310-5
6310-7.5 6312A-2.5 6312A-5 6316-5 6320-2.5 6320-5 7010-2.5 7010-5 7010-7.5 7012-2.5 7012-5 BNF 7012-7.5 7020-5 8010-2.5 8010-5 8010-7.5 8020A-2.5 8020A-5 8020A-7.5 10020A-2.5 10020A-5 10020A-7.5 1604-3 1605-2.5 1605-3 1605-5 1610-1.5 1810-2.5 1810-3 2004-2.5 2004-5 2005-2.5 2005-3 2005-3.5 2005-5 2006-2.5 2006-3 2006-3.5 2006-5 2008-2.5 2010A-1.5 2012-1.5 2504-2.5 2504-5 2505-2.5 2505-3 2505-3.5 2505-5 BNFN 2506-2.5 2506-3 2506-3.5 2506-5 2508-2.5 2508-3 2508-3.5 2508-5 2510A-2.5 2512-2.5 2516-1.5 2805-2.5 2805-3 2805-3.5 2805-5 2805-7.5 2806-2.5 2806-3.5 2806-5 2806-7.5 2808-2.5 2808-3 2808-5 2810-2.5 3205-2.5 3205-3 3205-4.5
△: supported with order ×: not supported
−: not applicable
Trang 9Model No.
WW QZ
Dimension with WW attached
Length of protrusion with
QZ attached
Diameter of protrusion with
QZ attached
AL
Dimension with QZWW attached Model No
WW QZ
Dimension with WW attached
Length of protrusion with
QZ attached
Diameter of protrusion with
QZ attached
AL
Dimension with QZWW attached
3205-5
3205-7.5
3206-2.5
3206-3
3206-5
3208A-2.5
3208A-3
3208A-4.5
3208A-5
3210A-2.5
3210A-3
3210A-3.5
3210A-5
3212-3.5
3606-2.5
3606-3
3606-5
3606-7.5
3608-2.5
3608-5
3608-7.5
3610-2.5
3610-5
3610-7.5
3612-2.5
3612-5
3616-2.5
3616-5
3620-1.5
4005-3
4005-4.5
4005-5
4005-6
4006-2.5
4006-5
4006-7.5
4008-2.5
BNFN 4008-3 4008-5
4010-2.5
4010-3
4010-3.5
4010-5
4012-2.5
4012-3.5
4012-5
4016-5
4506A-2.5
4506A-5
4506A-7.5
4508-2.5
4508-5
4508-7.5
4510-2.5
4510-3
4510-5
4510-7.5
4512-5
4520-1.5
5005-3
5005-4.5
5008-2.5
5008-5
5008-7.5
5010-2.5
5010-3
5010-3.5
5010-5
5010-7.5
5012-2.5
5012-3.5
5012-5
5016-2.5
5016-5
5020-2.5
5510-2.5
5510-5 5510-7.5 5512-2.5 5512-3 5512-3.5 5512-5 5512-7.5 5516-2.5 5516-5 5520-2.5 5520-5 6310-2.5 6310-5 6310-7.5 6312A-2.5 6312A-5 6316-2.5 BNFN 6316-5 6320-2.5 6320-5 7010-2.5 7010-5 7010-7.5 7012-2.5 7012-5 7012-7.5 7020-5 8010-2.5 8010-5 8010-7.5 8012-5 8020A-2.5 8020A-5 10020A-2.5 10020A-5 10020A-7.5 1605-5 1606-5 1810-3 2004-5 2005-5 2006-3 2006-5 2505-3 2505-5 2508-5 2510A-5 2805-5 2805-10 2806-5 2806-10 BIF 2810-3 3204-10 3205-5 3205-10 3206-5 3206-7 3206-10 3208A-5 3208A-7 3210A-5 3610-5 3610-10 4010-5 4010-10 4012-5 4012-10 5010-5 5010-10 1404-4 1404-6 DIK 1605-6 2004-6 2004-8
△: supported with order ×: not supported
−: not applicable
Trang 10Model No.
WW QZ
Dimension with WW attached
Length of protrusion with
QZ attached
Diameter of protrusion with
QZ attached
AL
Dimension with QZWW attached
2005-6
2006-6
2008-4
2504-6
2504-8
2505-6
2506-4
2506-6
2508-4
2508-6
2510-4
2805-6
2805-8
2806-6
2810-4
3204-6
3204-8
3204-10
3205-6
3205-8
DIK 3206-6
3206-8
3210-6
3212-4
3610-6
3610-8
3610-10
4010-6
4010-8
4012-6
4012-8
4016-4
5010-6
5010-8
5010-10
5012-6
5012-8
5016-4
5016-6
6310-8
6312-6
6312-8
1404-4
1404-6
1605-3
1605-4
2004-3
2004-4
2005-3
2005-4
2006-3
2006-4
2008-4
2504-3
2504-4
2505-3
2505-4
DK 2506-3
2506-4
2508-3
2508-4
2510-3
2510-4
2805-3
2805-4
2806-3
2806-4
2810-4
3204-3
3204-4
3205-3
3205-4
3205-6
3206-3
3206-4
3210-3 3210-4 3212-4 3610-3 3610-4 4010-3 4010-4 4012-3 4012-4 4016-4 4020-3
DK 5010-3 5010-4 5010-6 5012-3 5012-4 5016-3 5016-4 5020-3 6310-4 6310-6 6312-3 6312-4 6320-3 4020-3 DKN 5020-3 6320-3 1510-5.6 1616-3.6 2020-3.6 BLW 2525-3.6 3232-3.6 3636-3.6 4040-3.6 5050-3.6 1510-5.6 1616-2.8 1616-3.6 2020-2.8 2020-3.6 2525-2.8 2525-3.6 BLK 3232-2.8 3232-3.6
（precision）
3620-5.6 3624-5.6 3636-2.8 3636-3.6 4040-2.8 4040-3.6 5050-2.8 5050-3.6 0812-3 1015-3 1320-3 1520-1.5 1520-3 1530-1 1530-3 1540-1.5 2040-1 WGF 2040-3 2060-1.5 2550-1 2550-3 3060-1 3060-3 3090-1.5 4080-1 4080-3 50100-1 50100-3
△: supported with order ×: not supported
−: not applicable
*: The numbers in the parentheses indicate the dimensions of models attached
Model No
WW QZ
Dimension with WW attached
Length of protrusion with
QZ attached
Diameter of protrusion with
QZ attached
AL
Dimension with QZWW attached
Trang 11Model No.
WW QZ
Dimension with WW attached
Length of protrusion with
QZ attached
Diameter of protrusion with
QZ attached
AL
Dimension with QZWW attached Model No
WW QZ
Dimension with WW attached
Length of protrusion with
QZ attached
Diameter of protrusion with
QZ attached
AL
Dimension with QZWW attached
BNFN2505-2.5 QZ WW G0 +1000L C5
Example of model coding
Model number
With QZ Lubricator attached
Axial clearance symbol
Accuracy symbol Overall screw shaft (in mm) With Wiper Ring attached
0401-3
0501-3
0601-3
0801-3
0802-3
0810-3
1002-3
1004-2.5
1010-1.5
BNK 1205-2.5
1402-3
1404-3
1408-2.5
1510-5.6
1520-3
1616-3.6
2010-2.5
2020-3.6
2520-3.6
1404-3.6
1405-2.6
1605-2.6
1808-3.6
2005-2.6
BNT 2010-2.6
（ precision/ 2505-2.6
rolled） 2510-5.3
2806-2.6
2806-5.3
3210-2.6
3210-5.3
3610-2.6
3610-5.3
4512-5.3
1510-5.6
1616-3.6
1616-7.2
2020-3.6
2020-7.2
2525-3.6
2525-7.2
3232-3.6
BLK 3232-7.2
（rolled） 3620-5.6
3624-5.6
3636-3.6
3636-7.2
4040-3.6
4040-7.2
5050-3.6
5050-7.2
1520-3 1520-6 1530-2 1530-3 2040-2 2040-3 WTF 2550-2 2550-3 3060-2 3060-3 4080-2 4080-3 50100-2 50100-3 1530-6 CNF 2040-6 2550-6 3060-6 0401-3.7 0601-3.7 0802-3.7 MBF 1002-3.7 1202-3.7 1402-3.7 1404-3.7 1006-2.6 1208-2.6 1404-3.6 1405-2.6 1605-2.6 1808-3.6 2005-2.6 2010-2.6 BTK 2505-2.6 2510-5.3 2806-2.6 2806-5.3 3210-2.6 3210-5.3 3610-2.6 3610-5.3 4010-5.3 4512-5.3 5016-5.3 1404-4 1405-4 1605-4 2005-6 2505-6 JPF 2510-4 2805-6 2806-6 3210-6 3610-6 4010-6
△: supported with order ×: not supported
−: not applicable
QZ Lubricator and Wiper Ring "W" are not sold alone
Note
*: The numbers in the parentheses indicate the dimensions of models attached with QZ Lubricator without WW.
Trang 12Options for the Ball Screw
Precautions on Use
QZ Lubricator for the Ball Screw
Handling
disassemble the product unless it is inevitable to do so
Service temperature range
temperature range, contact THK in advance
Use in a special environment
Rust prevention
have a dust-prevention effect on the whole Ball Screw
Wiper Ring “W” for the Ball Screw
Handling
disassemble the product unless it is inevitable to do so
Service temperature range
temperature range, contact THK in advance
Use in a special environment
Chemical resistance
● “LM GUIDE” and “ ” are registered trademarks of THK CO., LTD.
● The photo may differ slightly in appearance from the actual product.
● The appearance and specifications of the product are subject to change without notice Contact THK before placing an order.
● Although great care has been taken in the production of this catalog, THK will not take any responsibility for damage resulting from typographical errors or omissions.
● For the export of our products or technologies and for the sale for exports, THK in principle complies with the foreign exchange law and the Foreign Exchange and Foreign Trade Control Law as well as other relevant laws.
For export of THK products as single items, contact THK in advance.
All rights reserved
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