Kelly Bushings & Parts

* To print tables please download PDF

• Heavy Duty
• Medium Duty
• Parts & Components List

 

Heavy Duty Roller Kelly Bushings

Pin Drive and Square Drive

20 RPH & 27 RPH

The Den-Con RH Series Roller Kelly Bushing is designed for heavy duty drilling operations, high torque and high speed drilling conditions.
DEN-CON 27 RPH Kelly Bushing is used with Den-Con Pin Drive Master-Casing Bushings for 23” through 49 1/2” Rotary Tables. The 27 RPH has 3 5/16 ” diameter drive pins (API) and 25 3/4” pin centers (API) and will handle Kelly sizes 3” to 6” square and 3” to 6” hex.
DEN-CON 20 RPH Kelly Bushing is used with Den-Con Pin Drive Master Casing Bushings for 20 1/2” to 22 1/2” Rotary Tables. The 20 RPH has 2 1/2” diameter drive pins (API) and 23” pin centers (API). The 20 RPH uses the same roller assemblies, components and wiper assemblies as the 27 RPH.
DEN-CON RSH Kelly Bushing is a square drive unit used with DEN-CON SSB Master Bushings and all Master Bushings having a drive square dimension of 13 9/16 ” (API). This bushing uses the same roller assemblies, components and wiper assemblies as the 27 RPH.
All RH Series Parts & Components Interchange with Varco HD Series Bushing Parts.
Plastic coated maintenance and parts sheets are available on request from Den-Con.

HEAVY DUTY ROLLER KELLY BUSHINGS
27 RPH COMPLETE 20 RPH COMPLETE RSH COMPLETE ROLLER ASSY. COMPLETE ROLLER SET
COMPLETE
w/ wrench, less wiper assy.
Fits Pin Drive Master Bushing 23” - 49 1/2” 		w/ wrench, less wiper assy.
Fits Pin Drive Master Bushing 20 1/2” - 22 1/2” 		w/ wrench, less wiper assy.
Fits Square Drive
Master Bushing
KELLY
SIZE/TYPE 		PART # WT. LBS. PART # WT. LBS. PART # WT. LBS. PART # PART #
3” Hex 2435-30H 1460 2430-30H 1440 2425-30H 1390 2455 2115-16
3 1/2” Hex 2435-35H 1460 2430-35H 1440 2425-35H 1390 2456 2117-18
4 1/4” Hex 2435-42H 1460 2430-42H 1440 2425-42H 1390 2457 2119-20
5 1/4” Hex 2435-52H 1460 2430-52H 1440 2425-52H 1390 2458 2121-22
6” Hex 2435-60H 1460 2430-60H 1440 2425-60H 1390 2459 2123-24
3” Sq. 2435-30S 1500 2430-30S 1470 2425-30S 1420 2450 2110-4
3 1/2” Sq. 2435-35S 1500 2430-35S 1470 2425-35S 1420 2451 2111-4
4 1/4” Sq. 2435-42S 1500 2430-42S 1470 2425-42S 1420 2452 2112-4
5 1/4” Sq. 2435-52S 1500 2430-52S 1470 2425-52S 1420 2453 2113-4
6” Sq. 2435-60S 1500 2430-60S 1470 2425-60S 1420 2454 2114-4

OPTIONAL LOCK ASSEMBLY

The Optional Lock Assembly locks the Kelly Bushing in the Master Bushing for use offshore with motion compensators. Lock assemblies are available for the 27 RPH series bushings. To order with an assembly, add “L” to the part number of the unit.

PIN DESCRIPTION REQ’D
2464 Motion Compensation Lock Assembly 1
2465 Eccentric Pin 2
2466 Drive Pin 2
2467 Lock 2
2468 Retainer Pin 2

Medium Duty Roller Kelly Bushing

Pin Drive and Square Drive

RSM

DEN-CON RSM Kelly Bushing is a medium duty square drive bushing used with DEN-CON SSB Master Bushings and all Master Bushings having a drive square dimension of 13 9/16 ” (API). The RSM will handle Kelly sizes from 2 1/2” to 5 1/4” square and 3” to 4 1/4” hex.
DEN-CON RPM Kelly Bushing is a medium duty pin drive bushing to fit 17 1/2” Master Bushings.

MEDIUM DUTY ROLLER KELLY BUSHINGS
RPM COMPLETE RSM COMPLETE ROLLER ASSY. COMPLETE ROLLER SET COMPLETE
w/ wrench, less wiper. Fits 17 1/2”
Pin Drive Master Bushing 		w/ wrench, less wiper assy.
Fits Square Drive MasterBushing
KELLY SIZE/TYPE
PART #
PART #
WT. LBS.
PART #
PART #
2 1/2” Sq.
2410-25S
2400-25S
870
2131
2140-4
3” Sq.
2410-30S
2400-30S
870
2132
2141-4
3 1/2” Sq.
2410-35S
2400-35S
870
2133
2142-4
4 1/4” Sq.
2410-42S
2400-42S
870
2134
2143-4
5 1/4” Sq.
2410-52S
2400-52S
870
2135
2144-4
3” Hex
2410-30H
2400-30H
860
2136
2145-46
3 1/2” Hex
2410-35H
2400-35H
860
2137
2147-48
4 1/4” Hex
2410-42H
2400-42H
860
2138
2149-50

Den-Con Bushing Features

All DEN-CON Kelly Bushings incorporate the following design features:

  • Self-locking straight roller pins - prevents pin rotation and movement.
  • Heavy duty graphite fiber bearing - prevents rusting, corrosion and galling of bearing structure.
  • Stabbing skirt - allows fast and easy stabbing into master bushing assembly.
  • Fast installation on Kelly - no shims required.
  • Longer roller life - Roller assemblies may be turned 180° to double wear life to the assembly.
  • Low maintenance - all parts field replaceable.
  • Meets all API dimensions and specifications.
  • Sealed Bearing Assembly - provided on RH Series.
  • Optional Heavy Duty Roller bearings are available.

Den-Con manufactures replacement parts for Varco 4KRP, 4KRS and 4KRBM bushings which have been discontinued. Parts are also available for Varco MD Series bushings.
Replacement Kelly Bushing Parts and Assemblies may be ordered by Varco Part Numbers.

Additional Kelly Bushings - Special Order.

  • Kelly Bushings for “Big-Hole” Drilling application are available by special order.

Kelly Bushing Parts List & Components

HD Body - Typical
RSM Body
RPM/RSM Roller Assembly

 

KELLY BUSHINGS PARTS LIST
ITEM #
# REQ’D
DESCRIPTION
27 RPH
SERIES
20 RPH
SERIES
RSH
SERIES
RSM
SERIES
RPM
SERIES
1
1
Body Assy. less Roller Assy.
2435
2430
2425
2400
2410
2
4
Hold Down Bolt
2428
2428
2428
2403
2403
3
4
Lock Washer, Hi-Collar
51110
51110
51110
—
—
4
4
Lock Washer
50924
50924
50924
50924
50924
5
4
Soc. Hd. Cap Screw
50110-8
50110-8
50110-8
—
—
6
4
Nut
1208
1208
1208
1208
1208
7
4
Drive Pin
2351
2352
—
—
—
8
4
Drive Pin Washer
2353
2353
—
—
—
OPTIONAL EQUIPMENT
9
1
Wiper Rubber
A/R
A/R
A/R
A/R
A/R
10
1
Wiper Retainer Plate
2429
2429
2429
2404
—
11
8
Wiper Retainer Bolts
50008-10S
50008-10S
50008-10S
50008-10S
50008-10S
12
1
Hammer Wrench
2443
2443
2443
2443
2443
 

 

HD ROLLER COMPONENTS
ITEM #
# REQ’D
DESCRIPTION
ROLLER ASSY. & KELLY SIZE
3 Sq. 2450
3 1/2” Sq. 2451
4 1/4” Sq. 2452
5 1/4” Sq. 2453
6” Sq. 2454
3” Hex 2455
3 1/2” Hex 2456
4 1/4” Hex 2457
5 1/4” Hex 2458
6” Hex 2459
1
2125
Roller Pin
4
4
4
4
4
4
4
4
4
4
2
2193
Sleeve Bearing
4
4
4
4
4
4
4
4
4
4
3
2126A
Thrust Washer w/ O-Rings
8
8
8
8
8
8
8
8
8
8
2126
Thrust Washer less O-Rings
8
8
8
8
8
8
8
8
8
8
4
3613
Lock Pin
8
8
8
8
8
8
8
8
8
8
5
233B
Inner O-Ring
8
8
8
8
8
8
8
8
8
8
6
358B
Outer O-Ring
8
8
8
8
8
8
8
8
8
8
7
2110
Roller
4
2111
Roller
4
2112
Roller
4
2113
Roller
4
2114
Roller
4
2115
Roller
2
2116
Roller
2
2117
Roller
2
2118
Roller
2
2119
Roller
2
2120
Roller
2
2121
Roller
2
2122
Roller
2
2123
Roller
2
2124
Roller
2
OPTIONAL
2199
Wiper Rubber
-9
-10
-11
-12
-13
-14
-15
-16
-18
-19
2127
Roller Bearing
ALL
 

 

RPM/RSM Medium Duty Bushing Roller Components
ITEM #
# REQ’D
DESCRIPTION
ROLLER ASSY. & KELLY SIZE
2 1/2” Sq. 2131
3” Sq. 2132
3 1/2” Sq. 2133
4 1/4” Sq. 2134
5 1/4” Sq. 2135
3” Hex 2136
3 1/2” Hex 2137
4 1/4” Hex 2138
1
2156
Roller Pin
4
4
4
4
4
4
4
4
2
2194
Sleeve Bearing
4
4
4
4
4
4
4
4
3
2158
Thrust Washer
8
8
8
8
8
8
8
8
4
2140
Roller
4
2141
Roller
4
2142
Roller
4
2143
Roller
4
2144
Roller
4
2145
Roller
2
2146
Roller
2
2147
Roller
2
2148
Roller
2
2149
Roller
2
2150
Roller
2
OPTIONAL
2199
Wiper Rubber
-1
-2
-3
-4
-5
-6
-7
-8
2157
Roller Bearing
ALL