Product Details
PB-K Backstop Clutch Precision Formed Cams High Torque For General Purpose
Production introduction
1. PB-K Series clutches feature precision formed cams which
provide higest torque capacities with excelent wear life.
2. Specify right(R.H) or left hand (L.H) inner race drive(not free)
viewed from direction of arrow mark when ordering.
3. Model PB5K~PB14K Series have 3 pcs of filler except PB-3K
which has one only.
4. These units can be operated in ambient temperature.
Installation
1. Concentricities of the inner race and the outer race are maintained by the plain bearing located between the outer race and the shaft. Radial load which works on the outer race is also supported by this plain bearing. The shaft must therefore be extended through the clutch outer race end.
2. Specify right (RH) or left hand (LH) inner race drive viewed from the end marked by the arrow in the illustration Above.Check if the rotation of the clutch is correct before being run-in.
3.Key to be used should be in accordance with JIS B1301-1959
4.The bore of the driven member, such as the sprocket on the clutch outer race, should meet H6 or H7 tolerance of the JIS standard.
5. For indexing use, oil lubrication is recommended.
Products Parameters
| Max. | | Bore Size | | | | | | | | Outer Race | | Lubrication |
| Torque | Drag | Overrunning | Max. | | | | | | | Keyway | | Filler Plug |
Model | Capacity | Torque | (r/min) | indexing | A | B | C | D | E | F | | Weight | SizexPitch |
| (N@m) | (N@m) | Inner Race | Outer Race | (cycle/min) | Dia. | Keyway | | | (h7) | | | | G | K | L | (kg) | |
| | | | (J7) | | | | | | | | |
PB 3 | 29.4 | 0.2 | 1,800 | 900 | 150 | 10 | 4x1.5 | 50 | 50 | 23 | 22 | 25 | 21 | 25.7 | 4× 2.5 | 16 | 0.23 | M6× P1.0 |
PB 5 | 147 | 0.2 | 1,800 | 900 | 150 | 16 | 5x2 | 70 | 60 | 32 | 32 | 35 | 25 | 38.8 | 5× 3.0 | 20 | 0.58 | M6× P1.0 |
PB 6 | 382 | 0.2 | 1,500 | 800 | 150 | 20 | 5x2 | 82 | 73 | 38 | 38 | 37 | 33 | 41 | 5× 3.0 | 27 | 1.1 | M6× P1.0 |
PB 8 | 568 | 0.29 | 1,200 | 650 | 150 | 25 | 7x3 | 85 | 83 | 45 | 40 | 45 | 33 | 42 | 7× 4.0 | 27 | 1.6 | M6× P1.0 |
PB 10 | 843 | 0.39 | 1,000 | 400 | 150 | 31.5 | 10x3.5 | 92 | 95 | 60 | 41 | 56 | 37 | 44 | 10 × 4.5 | 28 | 2.5 | M6× P1.0 |
PB 12 | 1530 | 0.39 | 800 | 300 | 150 | 40 | 10x3.5 | 100 | 113 | 65 | 50 | 66 | 37 | 52.6 | 10 × 4.5 | 29 | 3.6 | M6× P1.0 |
PB 14 | 2110 | 0.59 | 700 | 300 | 150 | 45 | 12x3.5 | 112 | 133 | 75 | 54 | 76 | 41 | 57.3 | 12 × 4.5 | 30 | 6 | M6× P1.0 |
Company Profile


Changzhou Tianniu Transmission Equipment Co., Ltd is a professional one way clutch bearing supplier, the primary products are micro electromagnetic clutch, torque limiter coupling, sliding shaft coupling, flexible propeller shaft coupling, locking assembly and shaft couplings, etc.
We have been in shaft coulpling and clutch one way bearing industry
for more than 10 years, persisting in the business principle of
products tailored to requirements from clients. We service through
listening to our customers, applying innovation and building with
craftsmanship to meet all their needs.
Our Products
Full range of shaft coupling products supply

We have been in Sprag Clutch Bearing and clutch one way bearing
industry for more than 10 years, persisting in the business
principle of products tailored to requirements from clients. We
service through listening to our customers, applying innovation and
building with craftsmanship to meet all their needs.



With a wide range, good quality, reasonable prices, stylish design
and accepting OEM, our products are extensively used in mining machine equipment,
convey equipment, reducer and many other industries.With well
equipped testing facilities and strict quality control, Changzhou
TIANNIU Transmission Equipment Co., Ltd's products sell well all
over the world, the main markets are European, America, Canada,
Brazil, India, Asia, etc . It was a certified enterprise with Quality Management System ISO9001:2015, SGS , Safety Certificate of
Approval for Mining Products.


Exhibitions
Open to customers from all over the world

We welcome clients from all over the world to seek help from us and
we look forward to becoming your long-term and stable shaft
coupling manufacturer in China.